Peavey Music Mixer X Eight RT User Manual

owner’s manual

X-Eight HS and RT m ixing consoles

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table of contents

mono inputs

p. 7

p. 25

p. 41

p. 59

p. 73

p. 101

stereo inputs

groups HS

groups RT

master HS

master RT

micro muting system p. 125

power supply

p. 141

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RT block diagram

X-Eight owner’s manual

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how to use this manual

conventions

terms

indicators or controls employed on the X-Eight console

will appear as: TERMS

tasks

are broken down into steps

warnings

Procedures not to attempt.

Issues or hazards to keep

in mind when operating

the equipment.

indicators

What to look

for on-screen.

Alerts, indicators, or

prompts that may appear.

tips

Prefered methods.

Helpful hints.

Feature insights.

see

see—references other sections of the manual containing

supplementary information on the current topic or a related issue

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1^{mono input module}

X-Eight owner’s manual

panel

module

block diagram

legend

p. 6

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^{mono input module}1

features

phantom power—+48V

48 volts DC is applied to pins 2 and 3 on the mic-input XLR con-

nector. This option is used with condenser microphones and active direct

boxes that require an external DC voltage (phantom power) in order to

operate.

The 48V switch should

not be engaged when

using standard (dynamic)

microphones, or other

sources that do not use

phantom power.

pad

The mic-input signal is attenuated by 20dB to prevent some signals

(e.g. kick drum or lead vocal) from overloading the preamp stage.The pad

is used to bring a hot mic-input signal down to a controllable level.The

20dB pad is not functional when the ^LINEswitch is depressed.

If the channel peak

LED is illuminated,

first try lowering

the input gain control.

Only when this method is

unsuccessful should the pad

switch be engaged.

line

The input preamp circuit is set up to accept a mic-level signal. This

signal is brought in via the XLR mic-input connector located on the rear

panel.The 1/4" TRS input jack is disabled.

If the 48V phantom

power switch is

engaged, depressing this

switch disconnects phantom

power from the mic input

XLR.

The input preamp circuit is set up to accept a line-level signal from

either the XLR mic-input connector or the 1/4"TRS input jack,both locat-

ed on the rear panel.

When a plug is inserted into the 1/4" TRS input jack, the XLR mic-input

connector is disabled.

polarity reverse—ø

This feature is used for correcting or minimizing polarity and phase relat-

ed errors. For example, occasionally a balanced input connection is

reverse-wired before it gets to the mixing console. This can happen in

microphones, or in snake line interfaces. By using the polarity reverse fea-

ture, this type of error can be corrected.

When similar signals

from different chan-

nels are combined, phase

cancellations can occur.

Reversing the polarity of an

input signal often corrects

such phasing errors.

polarity inverted

polarity not inverted

p. 7

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1^{mono input module}

X-Eight owner’s manual

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module

block diagram

legend

p. 8

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^{mono input module}1

features

gain

The Input gain control range is closely related to the status of the ^PAD

switch and the ^LINEswitch. In order to establish proper gain structure in

the console, input gain settings must be set correctly.

LINE—switch-up

15 to 75dB of gain can be added the mic-input signal.

The impedance at the input XLR is 4kΩ.

PAD—switch-up

If the channel peak

LED is illuminated,

first try lowering

the input gain control.

Only when this method is

unsuccessful should the pad

switch be engaged.

LINE—switch-up

PAD—switch-down

-5 to 55dB of gain can be added to the mic-input signal.

The impedance at the input XLR is 4kΩ.

LINE—switch-down

PAD—switch-up or -down

-10 to 45dB of gain can be added the line-input signal.

The impedance at the input XLR and input 1/4" TRS is 20kΩ.

high-pass filter—HPF

Proper use of the high-pass filter reduces or eliminates unwanted low fre-

quencies without substantially affecting the program material. Quite often

such unwanted low frequencies are included with in-coming mic- or line-

input signals. For example, stage rumble or wind can be picked up through

vocal mics.The slope of the high-pass filter is 12dB per octave.

HPF

High-pass filter is on.

HPF—variable control

When the high-pass filter is on, this control selects a frequency

between 20Hz and 400Hz as the point where attenuation begins.

p. 9

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1^{mono input module}

X-Eight owner’s manual

panel

module

block diagram

legend

p. 10

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^{mono input module}1

EQ features

Many audio signals coming into the console require some degree of cor-

rective eq in order to be part of a good sounding mix.

The input eq consists of four-bands: high, high-mid, low-mid and low.

The high and low bands have fixed frequencies while the high-mid and low-

mid bands are sweepable, with their higher and lower frequencies over-

lapping adjacent bands.

high frequency—HF

15dB boost and cut at 12kHz—Shelving Response.

high-mid frequency—HM

15dB boost and cut.

Selectable frequency range of 400Hz to 8 kHz.

The response is bell-shaped with a fixed Q of 1.5

low-mid frequency—LM

15dB boost and cut.

Selectable frequency range of 80Hz to 2kHz.

The response is bell-shaped with a fixed Q of 1.5

low frequency—LF

15dB boost and cut at 80Hz.

The boost response is bell-shaped and the cut response is shelving.

eq on

Equalizer is on. This switch can be used to make A/B comparisons

between "flat" and eq'd signals.

p. 11

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1^{mono input module}

X-Eight owner’s manual

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module

block diagram

p. 12

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^{mono input module}1

aux send features

Eight auxiliary ^{AUX SENDS}are available for creating individual output mixes.

These mixes can be used for driving effects processors, providing monitor

mixes, creating broadcast or alternate sound reinforcement mixes, or

other special requirements.

aux sends 1–8

These knobs adjust the amount of signal sent to the AUX buses.

Unity gain occurs at the zero setting. ^AUX6 and 8 controls pan function

when selected for stereo operation.

aux 1–4, 5/6 and 7/8 pre-fader—PRE

The default signal source for the AUX SENDS is post-fader.These switches

are used for selecting the pre-fader signal for their respective auxes.The

pre-fader signal is derived post-mute and post-eq.

see—internal jumper options

^{AUX SENDS}are post-eq, post-mute, and post-fader.

AUX SENDS are post-eq, post-mute, and pre-fader.

aux stereo 5/6 and 7/8

The default configuration for ^AUX5, 6, 7 and 8 is mono, as with AUX 1–4.

In situations where stereo-aux signals are required (such as driving stereo

in-ear monitors or effects processors), these switches reconfigure the ^AUX

^SENDSto operate in stereo by changing the functions of the potentiometers.

AUXES are configured as individual mono sends.

AUXES are configured as level and pan for stereo operation.

p. 13

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1^{mono input module}

X-Eight owner’s manual

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block diagram

p. 14

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^{mono input module}1

bus assignment features

The Input bus assignment section offers considerable flexibility for creat-

ing what eventually becomes the main output mix. Such features as ^LCR,

GROUP PAN ^ONand eight-individual group assignments allow several

approaches to building the desired mix.All assignments are derived post-

fader, post-eq, and post-mute.

left-center-right—LCR

This feature is used to precisely position a signal in a sound system with a

center speaker cluster in addition to left and right clusters.The ^PANcontrol

becomes an integral part of how the input-signal is sent to the ^LEFT, CEN-

TER, and RIGHT outputs.

The post-fader signal is assigned to the ^LEFT, ^RIGHT, and MONO/^CENTER

buses. Relative amounts of the signal fed to each bus is determined by the

position of the ^PANcontrol.

pan control

The pan control positions the signal within the stereo left/right field,

(or between left center or center right in ^LCRmode).The signal must be

assigned to either LCR or the L-R bus for the pan control to have any

affect.

see—left-center-right

safe preview—LED

When in safe-mode,

a channel will not

LED

accept commands for any

external source.

Green steady

This means that the mute function is in safe-mode. If the channel is part

of a mute scene, it will not be activated when the scene is recalled.The

local mute function operates normally regardless of whether or not the

channel is in safe-mode.

Commands sent from the

master onboard processor

and any external MIDI

device will also be ignored.

LED

Green flashing

green-LED status

The micro mute system is in edit-safe mode, and the channel is included

in the safe-scene. Pressing the local mute button will include or exclude

the mute from the safe-scene.

flashing green

edit-safe mode

channel included in safe-scene

steady green

part of the safe-scene

Pressing the edit-safe button in the micro channel section will remove the

console from edit-safe setup mode and save any changes that have been

made to the safe-scene. At this point, the green-LED will stop flashing.

no light

not part of the safe-scene

The green-LED will light steadily if the channel is part of the safe-scene, or

extinguish if it is not part of the safe-scene.

p. 15

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1^{mono input module}

X-Eight owner’s manual

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module

block diagram

p. 16

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^{mono input module}1

bus assignment features

safe preview—LED

LED

Red steady

This indicates that the mute has been activated by the micro mute sec-

tion and is part of the current mute scene.

red-LED status

flashing red

edit-preview mode

channel in mute scene

steady red

LED

Red flashing

part of active mute scene

This indicates that the micro mute system is in edit-preview mode and

the channel is part of the mute scene that is currently being created or

edited. Pressing the local mute button will include or exclude the channel

from the selected mute scene.

no light

not part of mute scene

Pressing the edit-preview button (LED-off) in the micro mute section will

remove the console from edit-preview mode and save any changes that

have been made to the selected mute scene. At this point,the red-LED will

stop blinking.

The red-LED will light steadily if the channel is part of the active mute

scene, or extinguish if it is not part of the active mute scene.

see—microprocessor muting

mute

The Mute switch has three functions:

1 It acts primarily as a local mute switch by activating and deactivating the

mute.When any mute is activated locally, it will remain muted until it is

deactivated locally regardless of whether or not the mute is part of the

safe-set or an active mute scene (or a mute scene that has been made inac-

tive).

2 It is used in creating and editing mute scenes when the micro-

processor mute section is in edit-preview mode.

3 It is used for including and excluding the mute in the safe-set when the

microprocessor mute section is in edit-safe mode.

This switch is illuminated whenever the channel is muted.

see—microprocessor muting

write-in label

This label may be written on with a grease-marker, and later wiped clean

with a cloth moistened with isopropyl/rubbing alcohol. Masking tape may

also be placed on this surface, if desired.

p. 17

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1^{mono input module}

X-Eight owner’s manual

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module

block diagram

p. 18

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^{mono input module}1

level meter features

level meter

LED

Each input includes a five-segment LED meter

for visually monitoring signal levels.This is essential for setting up and main-

taining proper gain structure.

peak indicator—PK

LED

The input signal is monitored at several points throughout the chan-

Occasional flashing of the

peak LED is acceptable,

but frequent flashes indi-

cate that channel levels

must be lowered.

nel.These points are the mic preamp, the EQ stage and the fader stage.

Overloads at any of these stages will cause the red peak-LED to light.

Then the channel gain should reduced.

If the channel peak

LED is illuminated,

first try lowering

signal level LED’s

LED

the input gain control.

These three LED's light up at +8—yellow, 0—green, and -6 dB—

Only when this method is

unsuccessful should the pad

switch be engaged.

green. This level range -6 to +8 is the optimum operating range.

Compressed or relatively constant signals should remain close to 0.

signal present indicator—SIG

LED

This green-LED varies in brightness in response to signal levels

between -40 dB and -6 dB.

p. 19

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1^{mono input module}

X-Eight owner’s manual

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p. 20

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^{mono input module}1

bus assignment features

Always turn off and

disconnect the amplifi-

er from mains voltage

before making audio

connections.

mono assignment—M

The signal is assigned to the discrete mono bus.

As an extra precaution, have

the attenuators turned down

during power-up.

When the ^LCRbutton is depressed, this switch is bypassed.

left / right assignment—L-R

The Input signal is assigned to the main Left and Right output buses,

deriving its signal after the channels pan system.When the LCR button is

depressed, this switch is bypassed.

pan on—groups—PAN ON

The eight ^GROUPassignment switches assign the input signal in mono,

independent of the pan pot.

The eight ^GROUPassignment switches assign signals as four stereo-

pairs.The ^PANcontrol governs the stereo placement of the four stereo-

pairs, which are now configured as odd–left / even–right.

For example:^GROUP1—left,GROUP 2—right,GROUP 3—left,GROUP 4—right,

...continuing through ^GROUP8.

group 1–8 assignment

The input channel's post-fader signal is assigned to the correspond-

ing ^GROUPbus(es).

see—pan on—groups

input fader

The input fader is the primary level control for signals being sent to any of

the console's mix buses.The only signals not affected are ^AUXsends select-

ed to be pre-fader. The fader offers greater than 80dB of attenuation and

up to 10dB of boost. Normal operation is between -10 and 0.

solo

Pressing this switch will include (illuminated) or exclude (not-illumi-

nated) the input channel from the console's ^SOLOsystem.

see—master module, solo control system

p. 21

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1^{mono input module}

X-Eight owner’s manual

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Direct

Out

Bal Line In

Bal Mic In

p. 22

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^{mono input module}1

rear panel features

direct out 1/4" TRS jack

The input channel's signal is available at this output jack.The

default signal routing is derived post-fader, post-eq and post-mute.This

output jack is ground-compensated.

insert points

Separate 1/4" TRS jacks provide the facilities for inserting an external sig-

nal processor into the signal path of the input channel.

insert send

This jack serves as an output for connection to the input of a

signal processor.The signal is derived after the mic preamp and ^HPFbut

before the eq section.Plugging a 1/4"TRS plug into this jack does not break

the signal flow of the channel.This output jack is ground-compensated.

The insert send can

also be used as an

additional channel output

when s pre-EQ signal is

needed.

insert return

The output of a signal processor is fed to this jack.It can accept

a balanced or unbalanced signal and is located pre-eq. Plugging a 1/4" TRS

plug into this jack does break the signal flow of the channel.

In situations where

the preamp circuitry is

not needed, the Insert

Return can be used as the

channel’s input.

balanced line-in jack—Bal Line In

Line-level signals, balanced or unbalanced, may be brought into

the input channel through this jack.The ^LINEswitch must be depressed for

this jack to be active.

For example, when using an

expensive tube mic preamp.

balanced mic-in xlr connector—Bal Mic In

This balanced female XLR accepts a low-impedance microphone

signal, or a line-level signal, depending on position of the LINE switch on

the front panel.

see—mono input module, phantom power, line

p. 23

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2^{stereo input module}

X-Eight owner’s manual

panel

module

block diagram

p. 24

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^{stereo input module}2

features

The stereo input module can be configured to operate as either stereo or

mono.When configured to operate in mono, many features are identical

to those of the mono input module.

To avoid redundancy,

mono features will refer

back to corresponding sec-

tions on the Mono module.

Descriptions given here are

specifically for the default

Stereo configuration.

line select—Line 2

This switch determines selection of input signals from the three sets of

rear panel connectors.

The channel is in ^LINE1 MODE.The signals are brought in via the left

and right line-input XLRs located on the rear panel.

The channel is in ^LINE2 MODE.The signals are brought in via the RCA

line-input connectors which are normalled through the 1/4"TRS line-input

jacks. Insertion of a plug into the 1/4" jack disconnects the RCA jacks.

left and right mono-switches

These switches provide several options for configuring the stereo line-

input module as a mono line-input module.

left

right

Signals brought into the left and right inputs are treated as stereo

throughout the module.

left

right

Signals brought into the left and right inputs are summed together imme-

diately before the ^GAINcontrol.The summed signal is treated as mono

throughout the rest of the module.

left

right

The signal fed to the left input is treated as a mono signal throughout the

module. No signal from the right input is used.

left

right

The signal fed to the right input is treated as a mono signal throughout

the module. No signal from the left input is used.

p. 25

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2^{stereo input module}

X-Eight owner’s manual

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p. 26

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^{stereo input module}2

features

input gain—GAIN

This control adjust the gain of the input preamp(s).

Both left and right input signals are affected by this control.

polarity reverse—ø

This switch inverts the polarity of the right input signal in relation to the

left input signal.

see—mono input module

Polarity of the right input signal is inverted.

Polarity of the right input signal is not inverted.

high-pass filter—HPF

The high-pass filter is activated for signals coming into both the left and

right inputs.The shelving frequency is fixed at 80Hz with a slope of 12dB

per octave.

Proper use of the high-pass filter reduces or eliminates unwanted low fre-

quencies, without substantially affecting the program material. Quite often

such unwanted low frequencies are included with in-coming mic- or line-

input signals. For example, stage-rumble or wind can be picked up through

vocal mics.

p. 27

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2^{stereo input module}

X-Eight owner’s manual

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p. 28

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^{stereo input module}2

four-band stereo EQ features

Although left and right signals are processed separately,the parameters are

set in tandem by common front-panel controls.

see—mono input module

high frequency—HF

15dB boost and cut at 12kHz—shelving response.

high-mid frequency—HM

15dB boost and cut.

Selectable frequency range of 400Hz to 8 kHz.

The response is bell-shaped with a fixed Q of 1.5

low-mid frequency—LM

15dB boost and cut.

Selectable frequency range of 80Hz to 2kHz.

The response is bell-shaped with a fixed Q of 1.5

low frequency—LF

15dB boost and cut at 80Hz.

The boost response is bell-shaped and the cut response is shelving.

equalizer—EQ ON

Equalizer is on.This switch can be used to make A/B comparisons

between "flat" and eq'd signals.

p. 29

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2^{stereo input module}

X-Eight owner’s manual

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p. 30

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^{stereo input module}2

aux send features

The following descriptions apply to the stereo line input module when

configured for stereo operation.

see—mono input module for mono operation

aux send 1–8 controls

These knobs adjust the amount of signal sent the AUX buses.

AUX 1–4 are fed from a summed-mono source. AUXES 5–8 are also fed

from this mono source, but can be switched to stereo operation.

see—stereo balance

aux 1-4, 5/6 and 7/8 pre-fader—PRE

The default signal source for the AUX SENDS is post-fader.These switches

select a pre-fader source for their respective auxes.The pre-fader signal is

derived post-mute and post-eq.

see—internal jumper options

Corresponding ^{AUX SENDS}are post-eq, post-mute and post-fader.

Corresponding ^{AUX SENDS}are post-eq, post-mute and pre-fader.

stereo balance 5 and 6—STEREO

AUX 5 and 6 are mono.

AUX 5 control acts as a left and right level-control and AUX 6 control

acts as a left/right balance-control.

stereo balance 7 and 8—STEREO

AUX 7 and 8 are mono.

AUX 7 control acts as a left and right level-control and AUX 8 control

acts as a left/right balance-control.

p. 31

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2^{stereo input module}

X-Eight owner’s manual

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p. 32

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^{stereo input module}2

bus assignment features

balance control

The Balance control adjusts the Stereo balance for Left/Right and the

Group Assignment section when in Balance mode.

When the Stereo Line Input module is being used as a Mono input, both

(left and right select switches depressed) the Balance control functions as

a Pan control.

safe preview LED

see—mono input module for full description

mute

see—mono input module for full description

write-in label

This label may be written on with a grease-marker, and later wiped clean

with a cloth moistened with isopropyl/rubbing alcohol.

p. 33

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2^{stereo input module}

X-Eight owner’s manual

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p. 34

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^{stereo input module}2

bus assignment features

peak indicator—A separate PK and SIG LED is provided for left

and right

LED

The input signal is monitored at several points throughout the chan-

nel.These points are the mic preamp, the EQ stage and the fader stage.

Overloads at any of these stages will cause the red peak-LED to light.

Then the channel gain should reduced.

signal present indicator—SIG

LED

This green-LED varies in brightness in response to signal levels

between -40 dB and -6 dB.

mono assignment—M

The input signal is assigned to the discrete mono bus. Left and right

signals are summed to make up the mono or center signal.

Best operation occurs when

the green LED is brightly

illuminated and the red LED

occasionally flickers.

left/right assignment—L/R

The stereo input signals are assigned directly to the main left and

right output buses.

The proportion of left vs. right can be adjusted by the ^BALANCEcontrol.

p. 35

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2^{stereo input module}

X-Eight owner’s manual

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p. 36

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^{stereo input module}2

bus assignment features

balance on—groups—BAL ON

The left and right signals are summed as mono to make up the group

assignment signals.

The left and right signals are assigned in stereo to the groups in

odd/even pairs.^GROUPassignment switches 1,3,5 and 7 carry the left input-

signal and ^GROUPassignment switches 2,4,6 and 8 carry the right input-sig-

nal.

The proportion of left vs. right can be adjusted by the ^BALANCEcontrol.

group 1–8 assignment

The input channel's post-fader signal is assigned to the correspond-

ing ^GROUPbus(es).

see—balance on—groups

input fader

The input fader is the primary level control for signals being sent to any of

the console's mix buses.The only signals not affected are ^AUXsends select-

ed to be pre-fader. The fader offers greater than 80db of attenuation and

up to 10db of boost. Normal operation is between -10 and 0.

solo

Pressing this switch will include (illuminated) or exclude (not-illumi-

nated) the input channel from the console's ^SOLOsystem.The channel is

Solo'd in stereo.

see—master module, solo control system

p. 37

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2^{stereo input module}

X-Eight owner’s manual

panel

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block diagram

Line In 2

Bal Line In 2

Bal Line In 1

p. 38

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^{stereo input module}2

rear panel features

The stereo line-input module provides connectors for three stereo line-

level signals.

see—line 2 switch.

balanced left and right line-in XLR connectors

These two jacks accept balanced or unbalanced +4dB line level signals.The

LINE 2 switch on front-panel must be disengaged for these connectors to

be active.

line-input left and right 1/4" TRS jacks

These two jacks accept balanced or unbalanced line level signals.The LINE

2 switch on front panel must be engaged for these jacks to be active.

line-input left and right RCA connectors

These two jacks accept unbalanced line-level signals.They are active when

the ^LINE2 switch on front-panel is engaged and nothing is plugged into the

corresponding left or right 1/4" TRS jack(s).

p. 39

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3^{group HS module}

X-Eight owner’s manual

panel

module

block diagram

p. 40

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^{group HS module}3

output eq features

The HS output-section includes twelve output-equalizers occupying the

upper portions of the eight ^GROUPsub-modules and the four MASTER sub-

modules.

By using designated assignment switches, output eq’s can be fed by the

eight ^AUXESor GROUPS, the four matrix masters or left,right, and mono mas-

ters.Each eq features five-bands of equalization,making them ideal for feed-

ing on-stage or in-ear monitors.

high frequency—HF

15dB boost and cut at 12kHz—shelving response.

high-mid frequency—HM

Selectable frequency range of 400Hz to 8 kHz.

The response is bell-shaped with a fixed Q of 1.5

15dB boost and cut.

mid frequency—MID

Selectable frequency range of 200Hz to 4kHz.

The response is bell-shaped with a fixed Q of 1.5

15dB boost and cut.

low-mid frequency—LM

Selectable frequency range of 100Hz to 2kHz.

The response is bell-shaped with a fixed Q of 1.5

15dB boost and cut.

low frequency—LF

Selectable frequency range of 20Hz to 400Hz.

The response is bell-shaped with a fixed Q of 1.5.

15dB boost and cut.

p. 41

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3^{group HS module}

X-Eight owner’s manual

panel

module

block diagram

p. 42

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^{group HS module}3

output EQ features

This switch can be

equalizer—EQ ON

used to make A/B

comparisons of "flat"

and EQ'd signals.

Equalizer is on.This switch can be used to make A/B comparisons

between "flat" and eq'd signals.

group equalization —per output channel—EQ TO GROUP

This switch selects the signal path for the eq.

eq to ^{AUX MASTERS}

eq to ^GROUPS

p. 43

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3^{group HS module}

X-Eight owner’s manual

panel

module

block diagram

p. 44

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^{group HS module}3

matrix features

The X-Eight HS includes four ^MATRIXoutputs.Each of these outputs can be

made up of signals from the eight ^GROUPS; the left, right and mono buses;

and an external source.

matrix 1–4 levels—M1, M2, M3, M4

These level controls are used to mix the group's signal into the cor-

responding matrix.

post-group

The GROUP fader setting has no effect on the group-to-matrix level

controls 1–4.

The ^GROUPfader is introduced into the signal path.When the group

is muted, the matrix level controls 1–4 are muted as well.

p. 45

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3^{group HS module}

X-Eight owner’s manual

panel

module

block diagram

p. 46

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^{group HS module}3

aux master output features

This section includes the standard output features

for ^{AUX SENDS}1–8.

safe preview LED

see—mono input module for full description

mute

see—mono input module for full description

aux 1–8 output level

The AUX MASTER output level controls set the levels that appear at the

corresponding ^AUXoutput connectors on the rear-panel.

talk to—aux 1–8

Adds the ^TALKBACKsystem output to the associated AUX output.The

level of the ^TALKBACKsignal is set by the TALKBACK level control in the MAS-

^TERsection.

solo

Pressing this switch will include when illuminated or exclude when

not illuminated the ^AUXfrom the console's SOLO system.

see—master module, solo control system

p. 47

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3^{group HS module}

X-Eight owner’s manual

panel

module

block diagram

p. 48

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^{group HS module}3

reverse aux /group

This is a useful fea-

The ^{REVERSE AUX}/ GROUP feature is used to swap the functions of the ^AUX

^MASTERcontrols and the GROUP MASTER controls.

ture when the mixer is

being used to feed on-stage

or in-ear monitors.

Swapped controls include: the ^{TALK TO}switch, the ^SOLOswitch, the MUTE

switch, the ^{SAFE PREVIEW LED}and the ^{MASTER LEVEL}control (via rotary con-

trol on the ^{AUX MASTER}and a fader on the ^{GROUP MASTER}).

The AUX MASTER level is

now controlled by the fader.

A red LED visually indicates

when this feature has been

selected.

There is one switch for each

of the eight AUX MASTERS /

GROUP MASTERS.

reverse aux / group

red LED off

The ^AUX1–8 and GROUP 1–8 MASTER level controls, SAFE PREVIEW LED,

SOLO, MUTE and TALK TO switches operate as normal in their default con-

figuration.

LED

red LED on

^AUXand ^GROUPfunctions are reversed.

The ^AUX1–8 output levels are controlled by the output faders.

The ^{AUX SAFE PREVIEW LED}, ^{AUX SOLO}, ^{AUX MUTE}and AUX TALK TO switches

apply to the ^GROUPoutput signal.

The ^GROUP1–8 output levels are controlled by the rotary AUX 1–8 MAS-

^TERlevel controls.

The ^{GROUP SAFE PREVIEW LED}, GROUP SOLO, GROUP MUTE and GROUP TALK TO

switches apply to the AUX output signal.

p. 49

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3^{group HS module}

X-Eight owner’s manual

panel

module

block diagram

p. 50

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^{group HS module}3

group assignment features

mono assignment—from group—MONO

The ^GROUPsignal is assigned to the discrete mono bus.

left/right assignment—from group—L/R

The ^GROUPsignal is assigned to the main left and right output buses.

pan

The PAN pot is used to position the group signal within the stereo left

/ right field.The signal must be assigned to left and right in order for the

PAN control to have any effect.

safe preview LED

see—mono input module

mute

see—mono input module

p. 51

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3^{group HS module}

X-Eight owner’s manual

panel

module

block diagram

p. 52

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^{group HS module}3

group/aux level features

signal/peak LED’s

LED

This dual color LED responds to the pre-fader signal. It illuminates

green with varying brightness in proportion to the audio signal.When the

signal approaches clipping,either pre or post fader,the LED illuminates red.

talk to—fader 1–8

This switch adds the TALKBACK system output to the fader signal.The

level of the ^TALKBACKsignal is set by the TALKBACK level control in the MAS-

TER section.

fader

The fader normally controls the level at which the GROUP signal is sent to

any assigned buses or outputs. When the ^{REVERSE AUX}/GROUP switch is

selected, the fader controls the level of the ^AUXoutput.

solo

Pressing this switch will include or exclude the fader signal from the

console's ^SOLOsystem.

see—master module, solo control system

p. 53

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3^{group HS module}

X-Eight owner’s manual

panel

module

block diagram

Group Out

Ins ert

Send

Return

AUX

Out

Ins ert

Send

Return

Group In

p. 54

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^{group HS module}3

rear panel features

group output

This balanced male XLR connector carries the ^GROUPoutput signal.

see—group fader, front-panel description

group insert point

Separate 1/4" TRS jacks provide the ability to insert an external signal

processor into the signal path of the ^GROUP.

group insert send

Plugging a 1/4" plug

into this jack does not

break the internal signal

flow of the Group.

This output connects to the input of an external signal proces-

sor. The signal is derived after the group-summing amplifier.

This output is ground compensated.

group insert return

Plugging a 1/4" plug

into this jack breaks

the signal flow

This balanced input accepts a signal from the output of an

external signal processor. It accepts either balanced or unbalanced signals.

of the Group.

p. 55

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3^{group HS module}

X-Eight owner’s manual

panel

module

block diagram

Group Out

Ins ert

Send

Return

AUX

Out

Ins ert

Send

Return

Group In

lamp dim / meterbridge connectors

Lamp

Dim

Meter Bridge

p. 56

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^{group HS module}3

rear panel features

auxiliary 1–8 output XLR’s

This balanced male XLR connector carries the ^AUXoutput signal.

These outputs are controlled by their respective ^AUXoutput level controls.

see—aux section, front panel description

aux insert point

Separate 1/4" TRS jacks provide the ability to insert an external signal

processor into the signal path of the AUX.

aux insert send

This output connects to the input of an external signal proces-

sor. The signal is derived after the AUX-summing amplifier.

Plugging a 1/4" plug

into this jack does not

break the internal signal

flow of the AUX BUS.

This output is ground compensated.

aux insert return

Plugging a 1/4" plug

into this jack breaks

the signal flow

This balanced input accepts a signal from the output of an

external signal processor. It accepts either balanced or unbalanced signals.

of the Group.

group inputs 1–8

These 1/4" TRS jacks accept balanced or unbalanced line-level signals.

They act as external inputs for ^GROUPS1–8.

lamp dim

Goose-neck lamps light-up at full intensity.

Goose-neck lamps light-up at medium intensity.

meterbridge connector

This connector carries all of the required connections up to the meter-

bridge.

p. 57

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4^{group RT module}

X-Eight owner’s manual

panel

module

block diagram

p. 58

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^{group RT module}4

group output control features

This section controls signals sent to the ^{GROUP OUTPUT}XLR on the rear

panel.

safe preview—LED

see—mono input module

mute

see—mono input module

group output level control

This control is used to adjust the signal level at the ^{GROUP OUTPUT}

XLR.

Note: The GROUP METER follows this signal.

talk to

The TALKBACK system output is added to the GROUP OUTPUT.The level

of the ^TALKBACKsignal is set by the TALKBACK level control in the master

section.

post-fader

The group fader setting has no effect on the group output level.

The group fader is inserted into the group output signal path.

write-in label

This label may be written on with a marker, and later wiped clean with a

cloth moistened with isopropyl/rubbing alcohol.

p. 59

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4^{group RT module}

X-Eight owner’s manual

panel

module

block diagram

p. 60

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^{group RT module}4

matrix features

The X-Eight RT includes four ^MATRIXoutputs. Each ^MATRIXmix can draw

signals from the eight ^GROUPbuses; the left, right, and mono buses; and an

external source.

matrix 1–4 level controls

These level controls are used to mix the ^GROUP'S signal into the cor-

responding ^MATRIX.

post-fader—recessed

The GROUP fader setting has no effect on the GROUP-to-MATRIX 1–4

level controls.

The ^GROUPfader is introduced into the signal path.When the GROUP

is muted, the MATRIX 1–4 level controls are muted as well.

p. 61

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4^{group RT module}

X-Eight owner’s manual

panel

module

block diagram

p. 62

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^{group RT module}4

external tape input assignment features

Each of the eight ^GROUPsub-modules includes a TAPE-IN section, although

this section is not directly associated with the ^GROUPS.

Its function is to provide a line return (or input) that can be assigned to

the left, right and mono outputs.

These inputs also act as the source for the ^{AUX SENDS}5–8 section located

directly below the ^TAPE-IN section.

level

This control sets the signal level brought in through the TAPE-IN jack

on the rear panel.

pan

When the TAPE-IN L/R assignment switch is depressed,the PAN control

is used to position the signal within the stereo field.

mono assignment

The TAPE-IN signal is assigned to the discrete mono bus.

left/right assignment—L/R

The TAPE-IN signal is assigned to the main left and right output buses.

solo

Pressing this switch will include (illuminated) or exclude (not illumi-

nated) the TAPE-IN signal from the console's SOLO system.

see—master module, solo control system

p. 63

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4^{group RT module}

X-Eight owner’s manual

panel

module

block diagram

p. 64

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^{group RT module}4

aux/group assignment features

aux sends 5–8

This section is used to send signals to AUXES 5 through 8.The aux signals

can originate from the ^TAPE-^INsection or the ^GROUPsection, pre- or post-

fader depending on settings of the switches below.

group-to-aux assignment—GROUP TO AUX

AUX SENDS 5–8 receive signals from the TAPE RETURN section, directly

after the ^{TAPE RETURN}level control.

AUX SENDS 5–8 receive signals from the GROUP section, directly after

the ^GROUPfader.

aux stereo 5/6 and 7/8

The default configuration for ^AUXES5,6,7 and 8 is mono.These switches con-

figure the odd / even (5/6 and 7/8) ^AUXpairs as stereo sends.

The ^ODD-AUX becomes the PAN control and the EVEN-AUX becomes the LEVEL

control.

corresponding ^AUXESare configured as individual mono sends.

corresponding ^AUXESare configured as LEVEL and PAN for stereo oper-

ation.

aux pre-fader 5/6 and 7/8—PRE

The default signal source for the ^{AUX SENDS}is post-fader.These switches

are used for selecting the pre-fader signal for their respective ^AUXES.

corresponding ^{AUX SENDS}are post-mute and post-fader.

corresponding ^{AUX SENDS}are post-mute and pre-fader.

p. 65

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4^{group RT module}

X-Eight owner’s manual

panel

module

block diagram

p. 66

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^{group RT module}4

group / aux level features

left-center-right—LCR

The post-fader ^GROUPsignal is assigned to the left, right and

mono/center buses.Relative amounts of the signal fed to each bus is deter-

mined by the position of the ^PANpot.

pan

The ^PANpot positions the signal within the stereo left/right field, or

between left-and-center or center-and-right in LCR mode.The signal must

be assigned as to LCR or the L-R bus in order for the ^PANcontrol to have

any affect.

see—left-center-right and left/right assignment

mono assignment—M

The Group signal is assigned to the discrete Mono bus.When the

LCR button is depressed, this switch is bypassed.

left/right assignment—L-R

The Group signal is assigned to the main Left and Right output buses.

When the LCR button is depressed, this switch is bypassed.

safe preview LED

see—mono input module

group mute

see—mono input module

write-in label

This label may be written on with a marker, and later wiped clean with a

cloth moistened with isopropyl/rubbing alcohol.

signal/peak LED—SIG/PEAK

LED

This dual-color LED responds to the pre-fader GROUP signal. It indi-

cates green with varying-brightness, in proportion to the audio signal.

When the signal approaches clipping, either pre or post fader, the LED

turns red.

group fader

The GROUP fader controls the level at which the GROUP signal is sent to any

assigned mix-buses or outputs.

p. 67

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4^{group RT module}

X-Eight owner’s manual

panel

module

block diagram

Tape In

Group 1 Out

Matrix In 1

p. 68

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^{group RT module}4

rear panel features

tape/line-input jack

A +4dBu line-level signal,balanced or unbalanced,is brought in through this

jack.

see—tape-in, front-panel description

insert point

Separate 1/4"TRS jacks allow insertion of an external signal processor into

the signal path of the ^GROUP.

insert send

Plugging a 1/4" plug

This ground-compensated output connects to the input of an

external signal processor. The signal is derived after the group-summing

amplifier.

into this jack does not

break the internal signal

flow of the Group.

insert return

Plugging a 1/4" plug

into this jack breaks

the signal flow

This balanced input accepts a signal from the output of an

external signal processor. It accepts either balanced or unbalanced signals.

of the Group.

group output

This balanced male XLR connector carries the GROUP output

signal.This output is controlled by the GROUP output section.This signal is

monitored on the group meter.

see—group output, front-panel description

p. 69

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4^{group RT module}

X-Eight owner’s manual

panel

module

block diagram

Tape In

Group 1 Out

Matrix In 1

MIDI/DC power detail

Out

MIDI

DC In

lamp dim/meterbridge connector detail

Lamp

Dim

Meter Bridge

p. 70

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^{group RT module}4

rear panel features

matrix in 1–4

located on the back of the ^GROUP1–4 block

These 1/4"TRS jacks accept balanced or unbalanced +4dBu line level sig-

nals.They act as external inputs for ^MATRIX1–4.

see—master module, MATRIX 1–4 front-panel description

midi in, midi out

located on the back of the GROUP 5–8 block

These jacks make it possible for the ^{MICROPROCESSOR MUTE SYSTEM}to be

part of a MIDI system. Program changes and certain system-exclusive tasks

can be carried out.

see—microprocessor mute system

midi in

Midi information is brought into the console and routed to the

Microprocessor controlled mute system.

midi out

Midi information being sent out by the Microprocessor-controlled Mute

system is available at this connector.

DC power-in

located on the back of the GROUP 5–8 block

This is where the powersupply cable gets connected to the console.

lamp dim

goose-neck lamps light-up at full-intensity.

goose-neck lamps light-up at medium-intensity.

meterbridge connector

This connector carries all of the required connections up to the meter-

bridge.

p. 71

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5^{master HS module}

X-Eight owner’s manual

block diagram

module

panel

p. 72

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^{master HS module}5

output EQ features

On the ^MASTERmodule block, the default sources for the four output eq’s

are the ^MATRIX1–4 masters.

By using designated assignment switches, source for the first three output

eq’s can be switched over to the left, right and mono masters.The fourth

eq is always fed by ^MATRIX4 master.

All eq's feature five bands of equalization.

see—group HS module

high frequency—HF

15 db boost/cut at 12kHz—shelving response.

high-mid frequency—HM

15 db boost/cut.

selectable frequency range of 400Hz to 8 kHz.

The response is bell-shaped with a fixed Q of 1.5.

mid frequency—MID

15 db boost/cut.

selectable frequency range of 200Hz to 4 kHz.

The response is bell-shaped with a fixed Q of 1.5.

low-mid frequency—LM

15 dB boost/cut.

selectable frequency range of 100Hz to 2 kHz.

The response is bell-shaped with a fixed Q of 1.5.

p. 73

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5^{master HS module}

X-Eight owner’s manual

block diagram

module

panel

p. 74

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^{master HS module}5

output EQ features

low frequency—LF

Selectable frequency range of 20Hz to 400Hz.

The response is bell-shaped with a fixed Q of 1.5.

15 dB boost/cut.

equalizer—EQ ON

Equalizer is on. This switch can be used to make A/B comparisons

between flat and eq’d signals.

left, right, mono equalization—EQ TO LEFT, TO RIGHT, TO MONO

These three switches select the signals fed to each of the first three

eq’s on the first three master sub-modules.The fourth ^MASTERsub-module

does not include a switch because its source is always ^MATRIX4.

MATRIX 1–3 are fed to the first three eq’s.

left, right and/or mono are fed to the first three eq’s.

p. 75

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5^{master HS module}

X-Eight owner’s manual

block diagram

module

panel

p. 76

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^{master HS module}5

matrix features

The X-Eight HS includes four ^MATRIXmixes. Each of these outputs can be

made up of signals from the eight ^GROUPS, left, right, mono and an external

source.

left, right, and mono levels—MATRIX 1–4

These level controls are used to mix the left, right, and mono signals

into the corresponding ^MATRIX.

post-fader—left, right, and mono

These three post-fader switches determine whether the left, right and

mono ^MASTERfaders have any effect on signals that available to MATRIX 1–4.

post-left, post-right, post-mono

The left, right and/or mono fader settings have no effect on the LEFT-,

RIGHT- and/or MONO-TO-MATRIX 1–4 level controls.

The left, right and/or mono faders are introduced into the signal

paths. When the left, right and/or mono are muted, the corresponding

MATRIX 1–4 level controls are also muted.

external input levels—MATRIX 1–4

These level controls are used to mix the external MATRIX input signals

into the corresponding matrix.The external ^MATRIXinput connectors are

located on the rear-panel of the ^MASTERmodule.

external matrix routing—MTX 1 IN TO ALL

This switch routes the signal from the external MATRIX input 1 jack to

the external ^MATRIX1–4 input level controls.This way,a single external input

can be added to each of the four matrices.

When this switch is down, the external ^MATRIXinput jacks 2, 3 and 4 are

disabled.

p. 77

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5^{master HS module}

X-Eight owner’s manual

block diagram

module

panel

p. 78

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^{master HS module}5

matrix output features

safe preview LED

see—mono input module

mute

see—mono input module

master output levels—MTX 1–4

These are the ^MASTERoutput level controls for the MATRIX section.

They control the levels that appear at the corresponding ^MATRIXoutput

connectors on the rear-panel.

matrix 1–4 talkback—TALK TO

This switch adds the TALKBACK system output to the MATRIX outputs.

The level of the ^TALKBACKsignal is set by the TALKBACK level control in the

^MASTERsection.

solo

Pressing this switch will include (illuminated) or exclude (not ilumi-

nated) ^MATRIXfrom the console's SOLO system.

see—master module, solo control system

p. 79

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5^{master HS module}

X-Eight owner’s manual

block diagram

module

panel

p. 80

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^{master HS module}5

alternate out features

The ^ALTERNATEoutput section allows assignment of the left and right MASTER

signals (plus center—if ^LCR-TO-OUTPUTS is selected) to a separate pair of bal-

anced male XLR connectors on the rear-panel.

By utilizing the mode switches located below the ^{ALT OUT}level control,these

signals can be derived in a number of ways. In default mode (no switches

depressed), the post-fader left and right ^MASTER(in center) signals are rout-

ed through the ^{ALT OUT}level control and appear at the ^{ALT OUT}connectors.

alternate out level

This control sets the levels that appear at the ALT OUT left and right

balanced XLR connectors on the rear-panel.

sum mono

The main left and right (and mono/center) signals are summed

together as a mono signal.This signal is then routed through the ^{ALT OUT}

level control and appears at the left and right ALT OUT balanced male XLR

connectors on the rear-panel.

The main left and right (and mono/center) signals are routed in

stereo through the ^{ALT OUT}Level control and appear at the left and right

^{ALT OUT}balanced male XLR connectors on the rear-panel.

pre switch

The left and right (and mono/center) master faders have no effect on

the left and right (and mono/center) signals routed through the ^{ALT OUT}

level control and appear at the left and right ^{ALT OUT}balanced male XLR

connectors on the rear-panel.

The left and right (and mono/center) master faders control the lev-

els of the left and right (and mono/center) signals routed through the ^ALT

^OUTlevel control and appear at the left and right ALT OUT balanced male

XLR connectors on the rear-panel.

p. 81

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5^{master HS module}

X-Eight owner’s manual

block diagram

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panel

p. 82

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^{master HS module}5

alternate out features

talkback alternate—TALK TO ALT OUT

The ^TALKBACKsystem output is added to the left and right ^ALTout-

puts.The level of the ^TALKBACKsignal is set by the ^TALKBACKlevel control in

the ^MASTERsection.

talkback left/right—TALK TO L/R

The TALKBACK system output is added to the left and right MASTER

outputs.The level of the ^TALKBACKsignal is set by the TALKBACK level con-

trol in the ^MASTERsection.

sum left/right—SUM L/R

The main left and right signals are summed together as a mono sig-

nal and appear at the left- and right-output balanced male XLR connectors

on the rear-panel.

The Main Left and Right signals appear in stereo at the left- and right-

output balanced male XLR connectors on the rear-panel.

p. 83

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5^{master HS module}

X-Eight owner’s manual

block diagram

module

panel

p. 84

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^{master HS module}5

left and right level features

left and right master faders

These faders govern the main left and right output levels.

signal/peak LED—SIG/PEAK

LED

This dual-color LED responds to the combined pre-fader stereo sig-

nal. It illuminates green with varying brightness in proportion to the audio

signal.When the signal approaches clipping, either pre or post fader, the

LED illuminates red.

solo

Pressing this switch will include (illuminated) or exclude (not illumi-

nated) the left and right signals from the console's ^SOLOsystem.The signals

are monitored in stereo.

see—master module, solo control system

p. 85

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5^{master HS module}

X-Eight owner’s manual

block diagram

module

panel

p. 86

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^{master HS module}5

monitor output features

The ^MONITORoutput section controls the audio feed for the console oper-

ator.Features are similar to those of ^{ALT OUT}section,except that the MON-

^ITORsection is normally used to access the SOLO system as well as main

outputs.

Like the alternate output section, it provides the ability to assign the left

and right ^MASTERsignals to a designated pair of balanced male XLR con-

nectors on the rear-panel.

By utilizing the mode switches located below the ^{LOCAL MONITOR OUTPUT}

level control, these signals can be derived in a number of different ways. In

default mode (no switches depressed), the post-fader left and right ^MASTER

signals are routed through LOCAL MONITOR level control and appear at the

MONITOR OUT balanced male XLR connectors on the rear-panel.

This feed is replaced by the ^SOLOsignal when a SOLO is activated on the

console.

monitor-out level

see—alternate out

sum mono

see—alternate out

solo-off

When any of the SOLO switches on the console are active, the SOLO

audio is routed in stereo through the MONITOR OUT level control and

appears at the left and right ^{MONITOR OUT}balanced male XLR connector

on the rear-panel.

This setting overrides the left and right feed to the ^MONITORoutput.

When any of the ^SOLOswitches on the console are active, the

MONITOR outputs are not affected.

monitor talkback—TALK TO MONITOR OUT

The TALKBACK system output is added to the left and right MONITOR

outputs.The level of the TALKBACK signal is set by the TALKBACK level con-

trol in the ^MASTERsection.

p. 87

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5^{master HS module}

X-Eight owner’s manual

block diagram

module

panel

p. 88

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^{master HS module}5

local monitor output features

talkback mono—TALK TO MONO

The ^TALKBACKsystem output is added to the mono MASTER output.

The level of the ^TALKBACKsignal is set by the ^TALKBACKlevel control in the

^MASTERsection.

main left/right to mono—L/R TO MONO

The MAIN left and right post-fader signals are summed together as a

mono signal and are routed to the mono bus.The summed left and right

signals automatically combine with any signals that are assigned directly to

the mono bus to make up the mono output.

The mono output consists exclusively of signals assigned directly to

the mono bus. Signals that appear at the ^MAINleft and right faders do not

appear at the mono output.

signal/peak LED—SIG/PEAK

LED

This dual-color LED responds to the pre-fader mono signal. It illumi-

nates green with varying brightness in proportion to the audio signal.

When the signal approaches clipping, either pre or post fader, the LED illu-

minates red.

p. 89

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5^{master HS module}

X-Eight owner’s manual

block diagram

module

panel

p. 90

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^{master HS module}5

mono master level features

mono master fader

This fader governs the mono output level.

solo

Pressing this switch will include or exclude the mono signal from the

console's ^SOLOsystem.

see—master module, solo control system

p. 91

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5^{master HS module}

X-Eight owner’s manual

block diagram

module

panel

p. 92

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^{master HS module}5

talkback features

The ^TALKBACKsystem provides facilities for assigning an external signal

(usually the console operator's microphone) to any of the console's out-

puts. Other signals can be routed through the ^TALKBACKsystem including

an external tone oscillator or the built in ^{PINK NOISE}generator.

talkback level

This control sets the level that appears at any of the outputs with

their respective ^{TALK TO}switches engaged. It also governs the audio level

at the ^TALKBACKoutput on the rear panel.

pink noise

The TALKBACK in-connector is disabled and PINK NOISE is sent though

the ^TALKBACKsystem.

talkback on—TALK ON

This switch must be activated for the TALKBACK system to operate.

There are two-ways to activate it:

1 Momentary - Depressing the button for more-than 1/2 of a second will

cause it to act as a momentary switch.When the button is released, the

TALKBACK section will be shut-off.

2 On / Off - A quick tap on the button (less-than 1/2 second) will cause

the switch to electronically change its state from on-to-off or from off-to-on.

left/right/center—LCR TO OUTPUTS

This feature is useful for monitoring the console when creating an LCR

mix. Local monitoring is usually done with two speakers.The LCR to out-

puts feature combines the center (or mono) signal with the left and right

signals, creating a phantom center channel.This feature affects the ^{ALT OUT}

section, the ^{MONITOR OUT}section, the HEARING ASSIST output and the head-

phone feed.

Center (mono) channel is not included in the ^MONITORpaths.

The center (or mono) channel is combined with left and right ^MON-

^ITORoutputs.This makes it possible to hear the center channel without a

designated speaker.

p. 93

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5^{master HS module}

X-Eight owner’s manual

block digram

module

panel

p. 94

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^{master HS module}5

solo control features

headphone level

This control governs the level at the headphone jack located in the

front of the console under the arm rest.

solo clear

When this switch is lit, it indicates that at least one SOLO on the console is

active. Depressing this switch will clear any active SOLOS and this light will

go out.

post-fader

This switch determines whether the SOLO system sources will be pre or

post level control. It affects all inputs and outputs globally throughout the

console.

The audio from active solos is derived after the corresponding fader

or ^MASTERlevel control.This is also referred to as AFL—after-fader listen.

The audio from active solos is derived before the corresponding

fader or master level control.This is also referred to as PFL—pre-fader lis-

ten.

last pressed

The SOLO system can operate in two different modes, as described below.

In either mode, a solo can be activated by pressing the desired local ^SOLO

button. The button will light up to indicate that the ^SOLOis active, and

pressing an active ^SOLObutton will make it inactive and the button's light

will go out.

Any number of solos can be active at once.

There are two-ways to make active solos inactive.

1 Press an active ^SOLObutton (one that is lit) and it will be made inactive.

2 Press the ^{SOLO CLEAR}button.

Only one solo can be active at a time. Pressing on an inactive ^SOLO

button will activate that solo and make a previous solo inactive.

p. 95

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5^{master HS module}

X-Eight owner’s manual

block diagram

module

panel

Matrix 1

Out

Ins ert

Send

Return

Left

Out

Alt L Out

p. 96

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^{master HS module}5

rear panel features

left and right alternate output XLR’s

This pair of balanced male XLR connectors carries the left and right

ALT OUT signals.These outputs are controlled by the ^{ALT OUT}level control.

see—left and right alternate output, front-panel description

XLR output jack on monitor

This pair of ground compensated 1/4" TRS jacks carries the left and right

MONITOR signals.These outputs are controlled by the MONITOR level con-

trol.

see—monitor, front-panel description

matrix 1–8 output XLR’s

This group of four balanced male-XLR connectors carries the ^MATRIX

1–8 output signals.These outputs are controlled by their respective MATRIX

^OUTPUTlevel controls.

see—matrix, front-panel description

left, right and mono output XLR’s

This group of three balanced male-XLR connectors carries the left,

right and mono output signals.These outputs are controlled by the left,

right and mono output faders.

see—left, right, and mono masters, front-panel description

p. 97

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5^{master HS module}

X-Eight owner’s manual

block diagram

module

MIDI/DC power detail

panel

Out

MIDI

DC In

Ins ert

Send

Return

Right

Out

Alt R Out

p. 98

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^{master HS module}5

rear panel features

insert points—left, right, and mono

Separate 1/4"TRS jacks provide the ability to insert external signal proces-

sor into the signal paths of the left, right and mono ^MASTERS.

insert sends—left, right, and mono

Plugging a 1/4" plug

into this jack does not

break the internal signal

flow of the respective left,

right, and mono masters.

These jacks connect to the input of signal processors.The sig-

nals are ground compensated.

Plugging a 1/4" plug

into this jack breaks

the signal flow

of the respective left, right,

and mono masters.

insert returns—left, right, and mono

These jacks connect to the outputs of a signal processors.They

can accept balanced or unbalanced signals.

Midi In, Midi Out

These jacks allow the MICROPROCESSOR MUTE SYSTEM to be linked into a MIDI

system.Program changes and certain system-exclusive tasks can be carried

out.

see—microprocessor mute system

midi-in

M^IDIinformation is brought into the console and routed to the MICRO-

PROCESSOR MUTE SYSTEM.

midi-out

M^IDIinformation sent out by the MICROPROCESSOR MUTE SYSTEM is available

at this connector.

DC power-in

This jack connects the power supply cable to the console.

p. 99

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6^{master RT module}

X-Eight owner’s manual

block diagram

module

LEFT

POST FADER

L-R

SOLO

MONO

SOLO

AUX

BAL OUT

+10

∑

+10

TALK TO

AUX

TALK TO

AUX

MATRIX

LEVEL

AUX

LEVEL

panel

p. 100

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^{master RT module}6

matrix master output features

This section includes the standard output features for ^MATRIX1–4.

safe preview LED

see—mono input module

mute

see—mono input module

matrix output levels—MTX 1–4

These are the ^MASTERoutput level controls for the ^MATRIXsection.

They control the levels for the corresponding ^MATRIXoutput connectors

on the rear-panel of the ^GROUP5–8 module block.

matrix talkback—TALK TO

This switch connects the ^TALKBACKsystem output to the MATRIX out-

puts.The level of the ^TALKBACKsignal is set by the TALKBACK level control in

the ^MASTERsection.

solo

Pressing this switch will include or exclude the ^MATRIXfrom the con-

sole's ^SOLOsystem.

see—master module, solo control system

p. 101

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6^{master RT module}

X-Eight owner’s manual

block diagram

module

LEFT

POST FADER

L-R

SOLO

MONO

SOLO

AUX

BAL OUT

+10

∑

+10

TALK TO

AUX

TALK TO

AUX

MATRIX

LEVEL

AUX

LEVEL

panel

p. 102

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^{master RT module}6

matrix level control features

matrix 1–4 levels—left, right, and mono

These level controls mix the left,right and mono signals into the cor-

responding matrix.

external matrix 1–4 input levels controls

These level controls are used to mix the external MATRIX input signals

into the corresponding matrix.The external ^MATRIXinput connectors are

located on the rear-panel of the ^MASTERmodule.

MTX 1-to-all

This switch routes the signal from the external MATRIX input-1 jack to

the external ^MATRIXinput-level controls 1–4. This way, a single external

input can be added to each of the four matrices.

When this switch is down, the external ^MATRIXinput jacks 2, 3 and 4 are

disabled.

p. 103

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6^{master RT module}

X-Eight owner’s manual

block diagram

module

LEFT

POST FADER

L-R

SOLO

MONO

SOLO

AUX

BAL OUT

+10

∑

+10

TALK TO

AUX

TALK TO

AUX

MATRIX

LEVEL

AUX

LEVEL

panel

p. 104

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^{master RT module}6

aux master output features

This section includes the standard output features for ^{AUX SENDS}1–8.

safe preview LED

see—mono input module

mute

see—mono input module

aux 1–8 output levels

The ^{AUX MASTER}output level controls govern the levels that appear

at the corresponding ^AUXoutput connectors on the rear-panel.

auxilary 1–4 talkback—TALK TO

This switch adds the ^TALKBACKsystem output to the AUX outputs.The

level of the ^TALKBACKsignal is set by the TALKBACK level control in the MAS-

^TERsection.

solo

Pressing this switch will include or exclude the AUX from the con-

sole's ^SOLOsystem.

see—master module, solo control system

p. 105

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6^{master RT module}

X-Eight owner’s manual

block diagram

module

LEFT

POST FADER

L-R

SOLO

MONO

SOLO

AUX

BAL OUT

+10

∑

+10

TALK TO

AUX

TALK TO

AUX

MATRIX

LEVEL

AUX

LEVEL

panel

p. 106

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^{master RT module}6

alternate output features

The alternate output section allows assignment of the left and right master

signals to a separate pair of balanced male XLR jacks on the rear-panel. By

utilizing the mode switches located below the ^{ALT OUT}level control, these

signals can be derived in a number of ways.

In default mode (no switches depressed), the post-fader left and right ^MAS-

^TERsignals are routed through the ALT OUT level control and appear at the

^{ALT OUT}connectors.

alternate output level—ALT OUT

This control governs the levels that appear at the ALT OUT left and

right balanced XLR connectors on the rear-panel.

sum mono

The ^MAINleft and right signals are summed-to-mono before the alter-

nate output jacks. This summing does not affect the ^MAINleft and right out-

puts.

The ^MAINleft and right signals are routed in-stereo through the ALT

^OUTlevel control and appear at the left and right ^{ALT OUT}balanced male

XLR connectors on the rear-panel.

pre

The signal feeding the ALT OUT section are taken before the main

left and right faders.

The signal feeding the ^{ALT OUT}section are taken after the MAIN

left and right faders.

talkback—TALK TO ALT OUT

The ^TALKBACKsystem output is added to the left and right ALT out-

puts.The level of the ^TALKBACKsignal is set by the TALKBACK level control in

the ^MASTERsection.

p. 107

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6^{master RT module}

X-Eight owner’s manual

block diagram

module

LEFT

POST FADER

L-R

SOLO

MONO

SOLO

AUX

BAL OUT

+10

∑

+10

TALK TO

AUX

TALK TO

AUX

MATRIX

LEVEL

AUX

LEVEL

panel

p. 108

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^{master RT module}6

left/right master fader features

talkback left/right—TALK TO L/R

The ^TALKBACKsystem output is added to the left and right MASTER

output.The level of the ^TALKBACKsignal is set by the ^TALKBACKlevel control

in the master section.

sum left/right—SUM L/R

The MAIN left and right signals are summed together as a mono sig-

nal and appear at the left and right output balanced-male XLR connectors

on the rear-panel.

The ^MAINleft and right signals appear in-stereo at the left and right

output balanced-male XLR connectors on the rear-panel.

signal /peak LED—SIG/PEAK

LED

This dual-color LED responds to the combined pre-fader stereo sig-

nal. It illuminates green with varying brightness in proportion to the audio

signal.When the signal approaches clipping, either pre or post fader, the

LED illuminates red.

left and right master faders

These faders govern the MAIN left and right output levels.

solo

Pressing this switch will include or exclude the left and right signals

from the console's ^SOLOsystem.The signals are monitored in stereo.

see—master module, solo control system

p. 109

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6^{master RT module}

X-Eight owner’s manual

block diagram

module

LEFT

POST FADER

L-R

SOLO

MONO

SOLO

AUX

BAL OUT

+10

∑

+10

TALK TO

AUX

TALK TO

AUX

MATRIX

LEVEL

AUX

LEVEL

panel

p. 110

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^{master RT module}6

local monitor output features

The local ^MONITORoutput section controls the audio feed for the console

operator. Features are similar to those of ^{ALT OUT}section, except that the

^MONITORsection is normally used to access the SOLO system as well as

^MAINoutputs.

Like the alternate output section, it provides the ability to assign the left

and right master signals to a designated pair of balanced-male XLR con-

nectors on the rear-panel.

By utilizing the mode switches located below the local ^MONITORoutput

level control, these signals can be derived in a number of different ways. In

default mode (no switches depressed), the post-fader left and right ^MASTER

signals are routed through local MONITOR level control and appear at the

MONITOR OUT balanced-male XLR connectors on the rear-panel.

This feed is replaced by the ^SOLOsignal when a SOLO is activated on the

console.

monitor-out level

This control governs the levels that appear at the ^{MONITOR OUT}left

and right balanced XLR connectors on the rear-panel.

sum mono

The signal feeding the MONITOR OUT section are taken before the

MAIN left and right faders.

The signal feeding the ^{MONITOR OUT}section are taken after the MAIN

left and right faders.

solo off

When any of the ^SOLOswitches on the console are active, the SOLO

audio is routed in stereo through the MONITOR OUT level control and

appears at the left and right ^{MONITOR OUT}balanced-male XLR connectors

on the rear-panel.

This overrides the left and right feed to the ^MONITORoutput.

The ^MONITORoutput is not affected by the SOLO system.

p. 111

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6^{master RT module}

X-Eight owner’s manual

block diagram

module

LEFT

POST FADER

L-R

SOLO

MONO

SOLO

AUX

BAL OUT

+10

∑

+10

TALK TO

AUX

TALK TO

AUX

MATRIX

LEVEL

AUX

LEVEL

panel

p. 112

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^{master RT module}6

features

monitor talkback—TALK TO MONITOR OUT

The ^TALKBACKsystem output is added to the left and right MONITOR

outputs.The level of the ^TALKBACKsignal is set by the ^TALKBACKlevel con-

trol in the ^MASTERsection.

p. 113

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6^{master RT module}

X-Eight owner’s manual

block diagram

module

LEFT

POST FADER

L-R

SOLO

MONO

SOLO

AUX

BAL OUT

+10

∑

+10

TALK TO

AUX

TALK TO

AUX

MATRIX

LEVEL

AUX

LEVEL

panel

p. 114

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^{master RT module}6

mono master level features

mono talkback—TALK TO MONO

The ^TALKBACKsystem output is added to the mono MASTER output.

The level of the ^TALKBACKsignal is set by the ^TALKBACKlevel control in the

^MASTERsection.

left/right to mono—L/R TO MONO

The MAIN left and right post-fader signals are summed together as a

mono signal and are routed to the mono bus.

The summed left and right signals automatically combine with any signals

that are assigned directly to the mono bus to make up the mono output.

The mono output consists exclusively of signals assigned directly to

the mono bus. Signals that appear at the ^MAINleft and right faders do not

appear at the mono output.

sig/peak LED—SIG/PEAK

LED

This dual-color LED responds to the pre-fader mono signal. It illumi-

nates green with varying brightness in proportion to the audio signal.

When the signal approaches clipping, either pre or post fader, the LED illu-

minates red.

mono master fader

This fader governs the mono output level.

folo

Pressing this switch will include or exclude the mono signal from the

consoles ^SOLOsystem.

see—master module, solo control system

p. 115

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6^{master RT module}

X-Eight owner’s manual

block diagram

module

LEFT

POST FADER

L-R

SOLO

MONO

SOLO

AUX

BAL OUT

+10

∑

+10

TALK TO

AUX

TALK TO

AUX

MATRIX

LEVEL

AUX

LEVEL

panel

p. 116

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^{master RT module}6

talkback features

The ^TALKBACKsystem provides facilities for assigning an external signal

(usually the console operator's microphone) to any of the console's out-

puts.

The Talk Back system

is commonly used for

testing the console's

output section.

Other signals can be routed through the ^TALKBACKsystem including an

external tone oscillator or the built-in ^{PINK NOISE}generator.

talkback level

This control sets the level that appears at any of the outputs with

their respective TALKTO switches engaged. It also governs the audio level

at the ^TALKBACKoutput XLR connector on the rear-panel.

pink noise

The TALKBACK in-connector is disabled and PINK NOISE is sent though

the ^TALKBACKsystem.

Talk On

This switch must be activated for the ^TALKBACKsystem to operate.

There are two-ways to activate it:

1 Momentary—Depressing the button for more than 1/2 of a second

will cause it to act as a momentary switch.When the button is released,

the ^TALKBACKsection will be shut-off.

2 On / Off — A quick tap on the button (less than 1/2 second) will cause

the switch to electronically change its state from on-to-off or from off-to-on.

left/right/center—LCR TO OUTPUTS

This feature affects

This feature is useful for monitoring the console when creating an LCR

mix. Local monitoring is usually done with two speakers.The LCR to out-

puts feature combines the center (or mono) signal with the left and right

signals, creating a phantom center channel.This feature affects the ^{ALT OUT}

section, the MONITOR OUT section, the HEARING ASSIST output and the head-

phone feed.

the Alt Out section,

the Monitor out section,

the Hearing Assist output

and the Headphone feed.

This makes it possible

to hear the Center

channel without

Center (mono) channel is not included in the ^MONITORpaths.

The center (or mono) channel is combined with left and right ^MON-

ITOR outputs.This makes it possible to hear the center channel without a

designated speaker.

a designated speaker.

p. 117

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6^{master RT module}

X-Eight owner’s manual

block diagram

module

LEFT

POST FADER

L-R

SOLO

MONO

SOLO

AUX

BAL OUT

+10

∑

+10

TALK TO

AUX

TALK TO

AUX

MATRIX

LEVEL

AUX

LEVEL

panel

p. 118

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^{master RT module}6

solo control features

headphone level

This control governs the level at the headphone jack located in the

front of the console under the arm rest.

solo clear

When this switch is lit, it indicates that at least one SOLO on the console is

active.Depressing this switch will clear any active solos and this switch light

will go out.

post-fader

This switch determines whether the SOLO system sources will be pre- or

post-fader). It affects all inputs and outputs globally throughout the con-

sole.

The audio from active solos is derived after the corresponding fader

or ^MASTERlevel control.This is also referred to as AFL—after fader listen.

The audio from active solos is derived before the corresponding fader

or ^MASTERlevel control.This is also referred to as PFL—pre-fader listen.

last pressed

The SOLO system can operate in two different modes, as described below.

In either mode, a solo can be activated by pressing the desired local ^SOLO

button.The button will light up to indicate that the solo is active,and press-

ing an active ^SOLObutton (the one that is lit) will make it inactive and the

button's light will go out.

Any number of solos can be active at once.

There are two-ways to make active solos inactive.

1 Press an active ^SOLObutton (the one that is lit)

and it will be made inactive.

2 Press the ^{SOLO CLEAR}button

see—solo clear

Only one solo can be active at a time.

Pressing on any inactive ^SOLObutton will activate that solo and remove any

previous solo from the ^SOLObus.

p. 119

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6^{master RT module}

X-Eight owner’s manual

block diagram

module

LEFT

POST FADER

L-R

SOLO

MONO

SOLO

AUX

BAL OUT

+10

∑

+10

TALK TO

AUX

TALK TO

AUX

MATRIX

LEVEL

AUX

LEVEL

panel

Matrix Out

Aux

Ext Mon

Mon

Out

Mon

Out

p. 120

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^{master RT module}6

rear panel features

matrix 1–4 output XLR’s

This group of four balanced male XLR connectors carries the MATRIX

1–4 output signals.These outputs are controlled by their respective ^MATRIX

output level controls.

see—matrix, front-panel description

auxiliary 1–8 output XLR’s

This group of eight balanced male XLR connectors carries the AUX

1–8 output signals.These outputs are controlled by their respective AUX

output level controls.

see—aux master output , front-panel description

left, right, and mono insert points

Separate 1/4"TRS jacks provide the ability to insert external signal proces-

sor into the signal paths of the left, right and mono ^MASTERS.

Plugging a 1/4" plug

insert sends—left, right, and mono

into this jack does not

break the internal signal

flow of the respective Left,

Right, and Mono Masters.

These jacks connect to the input of signal processors.The sig-

nals are ground compensated.

insert returns—left, right, and mono

Plugging a 1/4" plug

into this jack breaks

the signal flow

of the respective Left, Right,

and Mono Masters.

These jacks connect to the outputs of a signal processors.They

can accept balanced or unbalanced signals.

p. 121

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6^{master RT module}

X-Eight owner’s manual

block diagram

module

LEFT

POST FADER

L-R

SOLO

MONO

SOLO

AUX

BAL OUT

+10

∑

+10

TALK TO

AUX

TALK TO

AUX

MATRIX

LEVEL

AUX

LEVEL

panel

Matrix Out

monitor, alt, asst outputs and insert detail

Ext Mon

In L

Ins ert

Send

Ins ert

Send

Ins ert

Send

Aux

Ext Mon

In R

Return

MONO

OUT

RIGHT

OUT

LEFT

OUT

Mon

Out

Aux

Ext Mon

Mon

Out

As s t

Out Alt R

Out Alt L

Out

Ext Mon

Mon

Out

Mon

Out

p. 122

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^{master RT module}6

rear panel features

left, right, and mono output XLR’s

This group of three balanced male XLR jacks carries the left,

right and mono output signals. These outputs are controlled by the

left, right and mono output faders.

see—left, right, and mono masters

hearing assist output

This single balanced male XLR carries a mono signal that is made up of

a sum of the left and right ^MASTERoutputs.When the ^{LCR TO OUT}switch is

depressed, the center/mono output signal is included with the summed left

and right signal that appears at this jack.

This output does not have a designated level control.The summed signal is

derived after the left, right and mono (when the ^{LCR TO OUT}switch is

depressed) ^MASTERfaders.

left and right alternate output XLR’s

This pair of balanced male XLR connectors carries the left and right

^{ALT OUT}signals.These outputs are controlled by the ALT OUT level control.

see—left and right alternate output, front-panel description

left and right monitor output XLR’s

XLR OUT carries the left and right MONITOR signals.These outputs are

controlled by the ^MONITORlevel control.

see—monitor, front-panel description

p. 123

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7^{microprocessor muting system}

X-Eight owner’s manual

mute control panel

module

block diagram

typical channel

p. 124

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^{microprocessor muting system}7

features

Crest Audio X-Eight consoles are equipped with a ^{MICROPROCESSOR MUTE}

^CONTROLLERwhich permits the user to set-up a series of MUTE SCENES,each

controlling any combination of channels and outputs. These scenes can

then be recalled, either singly or in combination, to allow the operator to

easily control the mutes during a performance.

The ^{MUTE CONTROLLER}features 128 ^{SEQUENCED SCENES}(patches) along with

eight ^{MANUAL MUTE SCENES}.The 128 ^PATCHEScan be stepped through using

a single button,or remotely activated by the use of ^MIDIpatch-change com-

mands.The ^PATCHEScan be combined with the MANUAL SCENES to allow dif-

ferent combinations of channel mutes.

The following is an overview of the controls and indicators of the ^MUTE

^CONTROLLERand the channels. The following information pertains to X-

Eight consoles with Rev 1.12 firmware.

mute controller

A—UP/DOW N

Each press of these switches increments or decrements the ^{PATCH DISPLAY}

B.Holding either button down will allow quickly scrolling up or down.The

buttons are also used to select the parameters and settings of the system

while in ^UTILITYmode.

B—^DISPLAY

This four-character alpha-numeric display normally shows the current

PATCH 1–128 being recalled.It is also used to display the parameters and set-

tings of the system while in ^UTILITYmode.

C—^{EDIT PREVIEW}

Pressing this switch puts the system into ^EDIT/^PREVIEWmode, allowing the

operator to view and change the contents of any selected ^{MUTE SCENE}.The

internal red LED will blink while in this mode, along with the status LED’s

J of any channels assigned to the selected ^{MUTE SCENE}. Pressing a CHANNEL

^MUTEswitch K will add or remove a channel from that scene. Pressing the

EDIT/PREVIEW switch again will exit back to normal operating mode.

D—^{EDIT SAFE}

Pressing this switch puts the system into EDIT SAFE mode,allowing the oper-

ator to view and change the contents of the ^SAFEmemory.The internal

green LED will blink while in this mode, along with any channels assigned

to the ^{SAFE SCENE}. Pressing a CHANNEL MUTE switch K will add or remove a

channel from the ^{SAFE SCENE}.If a channel is included in the SAFE SCENE,it can’t

be muted from a ^{MUTE SCENE}.This allows the operator to remove a chan-

nel all scenes without having to edit any of the scenes themselves. Pressing

the ^{EDIT SAFE}switch again will exit back to normal operating mode.

p. 125

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7^{microprocessor muting system}

X-Eight owner’s manual

mute control panel

module

block diagram

typical channel

p. 126

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^{microprocessor muting system}7

features

mute controller

E—SINGLE SCENE

There are nine ^MUTEsources available from the ^{MUTE CONTROLLER}:the eight

MANUAL MUTE SCENES H, and the ^{MICRO SCENE}G. Normally any or all of

these nine sources can be active at-one-time, which allows the operator

to combine different mute patterns. The ^{SINGLE SCENE}switch, when

depressed, permits only one of the nine-sources to be active at-one-time.

F—^{MICRO UTILITY}

This latching switch will put the system into UTILITY mode.The operator

can then access and view the various parameters and functions of the con-

troller using the ^UP/DOWN buttons A and the ^DISPLAYB.

G—^{MICRO SCENE}

This switch activates the SEQUENCED SCENE (PATCH).

The ^DISPLAYB shows which of the 128 possible SCENES are active.

H—^{MANUAL MUTES}These eight switches activate the associated ^MANU-

AL MUTE SCENE.Additionally,these switches,along with G,select which MUTE

^SCENEis being edited when in EDIT/PREVIEW mode.

I—^RECALL(NEXT)

^MUTESby one, the DISPLAY B will reflect this.Also used to activate the dis-

played scene when an ^UP/DOWN A button was used to scroll to a new

scene. In this case, an will be displayed as the first-character in the display

to indicate that the displayed number is not currently the active scene.

Pressing ^RECALLwill put that displayed SCENE into place and clear the

from the display.

Each press of this switch increments the SEQUENCED

All of these actions

will take place, but

the displayed SEQUENCED

SCENE will not be active

(mutes not enabled)

—unless the MICRO SCENE

switch G is lit.

p. 127

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7^{microprocessor muting system}

X-Eight owner’s manual

mute control panel

module

block diagram

typical channel

p. 128

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^{microprocessor muting system}7

features

channel mute controls

J—STATUS LED

This bi-color LED, associated with each controlled-mute, shows the con-

dition of that mute.

One-of-five possible states is possible:

1 OFF—The channel is not controlled by the ^{MUTE CONTROLLER}.

2 ^{STEADY RED}—The channel is being muted by a MUTE SCENE.

3 STEADY GREEN —The channel is in SAFE MODE, cannot be muted by any

scene.

4 FLASHING RED—The system is in EDIT/PREVIEW mode and the channel

is in the currently selected ^SCENE.

5 ^{FLASHING GREEN}—The system is in ^{EDIT SAFE}mode and the channel is

included in the ^{SAFE SCENE}.

^{MUTE SWITCH}—This momentary-switch toggles the channel’s ^LOCAL

^MUTEand is also used to assign/un-assign channels to MUTE and SAFE SCENES,

when in the ^EDITmode.

7 MUTE LED—This internal red-LED will illuminate whenever the channel

is muted, either locally or by a ^{MUTE SCENE}.

If a channel is already locally muted when a relevant ^{MUTE SCENE}is activat-

ed, this LED will remain lit. Two sources are now telling the channel to

mute: the ^{LOCAL MUTE}and the MUTE SCENE. If the MUTE switch K is pressed

once, the ^{LOCAL MUTE}will be cleared, but no apparent change will occur.

The ^MUTELED L will still be lit, and the STATUS LED J will still be steady-red.

At this point there is only one source telling the channel to mute;the ^MUTE

^SCENE. If the ^{MUTE SCENE}is then disabled, the channel will un-mute because

the ^{LOCAL MUTE}was previously cleared.

The user should be aware of this fact—the local mutes can toggle invisibly

behind a ^{MUTE SCENE}. For an even number of presses on the MUTE switch

K, the ^{LOCAL MUTE}will return to its original state,an odd-number of press-

es will change the ^{LOCAL MUTE}to its opposite-state.

p. 129

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7^{microprocessor muting system}

X-Eight owner’s manual

mute control panel

module

block diagram

typical channel

p. 130

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^{microprocessor muting system}7

features

mute scenes

There are nine possible scene sources: ^{MANUAL MUTE SCENES}1–8, and the

^{MICRO SCENE}.The MICRO SCENE button G is the enable-switch for the 128

possible ^{SEQUENCED SCENES}.The eight MANUAL MUTES are totally independent

of the 128 SEQUENCED SCENES,giving the system a total of 136 possible mute

patterns. Each of the 136 patterns can consist of any combination of chan-

nel and output mutes, all of the nine possible sources can be combined to

create additional patterns.

creating a mute scene—or editing an existing one

1 Press the EDIT PREVIEW button C

The button will begin to blink, indicating that the system is in ^{EDIT PREVIEW}

^MODE.

2 Select a ^SCENEto edit

The system will automatically choose a ^SCENEto edit, depending on the

status of the system when ^{EDIT PREVIEW}was selected. If the system was in

SINGLE SCENE mode (switch E depressed), the MUTE SCENE that was cur-

rently active will be selected to edit. If the system was in ^{MULTIPLE SCENE}

mode (switch E not depressed), the MICRO SCENE will be automatically

selected for editing. If a different scene than the default is to be edited,

that scene should now be chosen by pressing one-of-the-nine possible

^{MUTE SCENE}buttons G and H, it will illuminate to show its selection. Only

one scene can be selected for editing, the condition of the ^{SINGLE SCENE}

button E has no effect in ^EDITmode.

When returning to

NORMAL mode,

the system will revert back

to the PATCH that was in

place before entering

EDIT mode.

3 When ^{MICRO SCENE}is selected

If ^{MICRO SCENE}G was selected, then the ^UP/^DOWNA buttons should be

used to select the desired ^{SEQUENCED SCENE}(PATCH) to be edited.The DIS-

PLAY B will indicate which of the 128 possible patches is being worked on.

4 Assign channels to the ^SCENE

Any channels currently assigned to the SCENE being edited will have their

STATUS LED’s J blinking-red. Pressing the associated MUTE switch K will

assign/de-assign that channel to the ^SCENE.

5 Clearing a ^{MUTE SCENE}

If you wish to clear all assigned channels from a SCENE, press-and-hold the

EDIT SAFE D button. After a brief delay, the display will change to CLR?.

Continue to hold the button down until the display shows ^CLRD.All chan-

nels assigned to that ^SCENEwill be de-assigned and you can start fresh.

6 Saving your edit

This immediate

change will be most

apparent when editing a

scene that is currently the

active scene—the MUTE

SCENE that was on when EDIT

mode was entered.

Once you have a ^SCENEconfigured the way you want it, either press the

blinking ^{EDIT PREVIEW}C button to exit ^EDITmode and return to NORMAL

mode, or select another SCENE to edit by pressing its associated switch

H, or—if ^{MICRO SCENE}was selected—press the UP/DOWN A keys to

select a new ^PATCHto edit.There is no store-button to press, the

changes take place immediately while editing, and the ^SCENEis saved auto-

matically when a new ^SCENEis selected or upon exiting EDIT mode.

The MUTE LED L will change

along with the STATUS LED J

as a channel is added or

removed from the scene

during editing.

p. 131

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7^{microprocessor muting system}

X-Eight owner’s manual

mute control panel

module

block diagram

typical channel

p. 132

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^{microprocessor muting system}7

features

copying a mute scene

^{MUTE SCENES}can be copied from a ^{SEQUENCED SCENE}(^PATCH) to a MANUAL

^{MUTE SCENE}. Manual MUTES cannot be copied to sequenced scenes or to

each other. To copy a ^{SEQUENCED SCENE}into a ^{MANUAL MUTE SCENE}, follow

the steps outlined below.

1 Press the ^{EDIT PREVIEW}button C, it will begin to blink, indicating that the

system is in ^{EDIT PREVIEW}mode.

2 Select ^{SEQUENCED SCENES}by pressing the MICRO SCENE G button; it will

illuminate.

3 Scroll to the ^SCENEto be copied using the UP/DOWN A keys to change

the ^DISPLAYB.

4 Hold down the ^{MICRO SCENE}button.The display will show CPY?.

5 Continue holding-down the ^{MICRO SCENE}button G, while pressing the

desired ^{MANUAL MUTE}switch H. The display will show COPY, and the

sequenced ^{SCENE MUTE}pattern is copied to the target ^{MANUAL MUTE}

—overwriting whatever pattern may have originally been there.

6 The newly created ^{MANUAL MUTE SCENE}can now be selected for editing

by pressing its select switch G. The copied ^MUTEpattern will be there, you

can use that as a starting point for your edits.

7 Exit back to ^NORMALmode when you’re done by pressing EDIT PREVIEW

C again.

The copy feature can be used as a way to back-up your ^{MANUAL MUTE}

^SCENES, even though it is not possible to copy from MANUAL MUTES to any

other mutes.Instead,use the highest-numbered ^PATCHES(120–127) to cre-

ate the original versions of ^{MANUAL MUTE SCENES}.Then use the copy func-

tion to transfer these patterns into the ^{MANUAL MUTES}. It is always possible

to revert back to the original ^PATCHES(120–127) and re-load/copy them

into the ^{MANUAL MUTES}whenever needed.

PATCH 128 can also be used as an ALL MUTE memory. Program it with all

channels muted, then copy it to a ^{MANUAL MUTE}when the need arises to

start a ^SCENEwith all channels muted—instead of all channels un-muted.

In order to start a ^SCENEwith all channels un-muted, hold-down the EDIT

^SAFEbutton to clear all mutes in a SCENE when editing.

p. 133

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7^{microprocessor muting system}

X-Eight owner’s manual

mute control panel

module

block diagram

typical channel

p. 134

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^{microprocessor muting system}7

features

safe scene

There may be occasions when a channel needs to be made ^SAFEfrom all

programmed mutes. This may occur during a show when an on-stage

microphone needs to be used as an announcer’s mic, or a switch-over has

to be made to a backup-channel due to some technical difficulty.The ^SAFE

^SCENEallows a channel to be removed from the control of all mute scenes

without having to edit any of the scenes. Once a channel is assigned to the

^{SAFE SCENE}, it will ignore all MUTE SCENE commands.The mute scenes them-

selves are not altered, it’s only the channel’s response that has been

changed.

The LOCAL MUTE com-

mand is not affected

by this SAFE, the LOCAL MUTE

is always effective.

This feature allows temporary changes to be made to a show,due to night-

ly needs, without having to edit the programmed scenes. The original

scenes will still be stored in memory the next-time the show is performed.

The ^{SAFE SCENE}is always active, if a channel is assigned to the SAFE SCENE,it

will ignore any mute commands from a ^{MUTE SCENE}.The STATUS LED J of a

channel will be a steady-green color—if a channel is safe.

Editing the ^{SAFE SCENE}

1 Enter ^{EDIT SAFE}mode

Press the ^{EDIT SAFE}button D, it will begin to blink, indicating that the sys-

tem is in ^{EDIT SAFE}mode.

2 Select a channel to safe

Pressing the ^MUTEswitch K of a channel will assign/de-assign a channel to

the ^{SAFE SCENE}.The STATUS LED J of any channel assigned to the ^{SAFE SCENE}

will blink-green. If a channel is currently muted because of a MUTE SCENE,

assigning it to the ^{SAFE SCENE}will immediately un-mute it.

3 Clearing the ^{SAFE SCENE}

If you wish to clear all assigned channels from the SAFE SCENE, press and

hold the ^{EDIT PREVIEW}C button. After a brief delay, the display will

change to ^CLR?. Continue to hold the button-down until the display

shows ^CLRD.All channels assigned to the SAFE SCENE will be de-assigned.

4 Exit ^{EDIT SAFE}mode

Press the blinking ^{EDIT SAFE}button D again. It will stop-blinking and the

system will return to ^NORMALmode.Any blinking-green STATUS LED’s will

turn to steady-green, indicating that the channel is in ^SAFEmode.

If an emergency arises

and a programmed

channel has to be un-muted,

a channel can by quickly

assigned to the SAFE SCENE

via a three-step process:

If a channel was previously being muted exclusively by a ^{MUTE SCENE}(STA-

TUS LED steady-red), but is now safe, then the STATUS LED will indicate

steady-green and the ^MUTELED L will be off. If the channel was being

muted by a ^{LOCAL MUTE}, it will remain muted.The SAFE SCENE does not

affect ^{LOCAL MUTES}.

1 Press the EDIT SAFE

switch to enter EDIT SAFE

mode.

2 Press the MUTE switch

for the desired channel.

The channel will un-mute.

3 Press the EDIT SAFE

switch again to return to

NORMAL mode.

p. 135

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7^{microprocessor muting system}

X-Eight owner’s manual

mute control panel

module

block diagram

typical channel

p. 136

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^{microprocessor muting system}7

features

utilities

The ^{MUTE CONTROLLER}has a number of parameters that the user can

change. A ^UTILITYmode is provided for accessing these settings.The fol-

lowing is a current list of parameters, along with their default and other

possible settings.

The default-setting is indicated in bold characters.

display

meaning

settings

micro processor

ON or ^OFF

Determines whether the MUTE SYSTEM is ON or OFF.When OFF, the entire

MUTE SCENE system is disabled, only the LOCAL MUTES will operate.This set-

ting can be used if traditional console operation is desired (i.e., no pro-

grammed scenes are desired).

M Ch

midi channel

01–16

Sets the ^MIDIchannel that the controller uses to communicate to the MIDI

world.The ^MUTEcontroller can send and receive ^MIDIprogram changes,MIDI

dumps etc. It does so on the selected channel.

Lock

edit lock

OFF or ON

If set to ^ON, theis feature prevents changes from being made to any ^MUTE

^SCENE. If EDIT PREVIEW is pressed when LOCK is ON, the word "Lock" is dis-

played and the system will not enter ^EDITmode.

Dmp?

midi dump

When activated, the contents of all the mute scenes are transmitted via

the ^{MIDI OUT}jack using SysEx protocol.A librarian or archiving MIDI pro-

gram can be used to store the ^MUTEsettings externally.

Loading of external data

via SysEx command is

always active.

Base

midi base

01 or 00

There are 128 possible ^MIDInumbers.The X-Eight console can start count-

ing at 01 and count up to 128,or start at 00 and count up to 127.Different

MIDI devices do it either way—the choice is yours.

Ext

external control

OFF or ON

Normally, the MUTE SYSTEM uses its internal MUTE SCENES to control the con-

sole mutes. Alternately, ^MIDInote commands can be used to control the

channel mutes directly.When Ext is ^ON, the DISPLAY B will indicate "Ext",

and the normal ^{MUTE SCENES}will be disabled. The controller will now

respond only to externally-received note on/off commands (via ^{MIDI IN}jack).

Pgm

program change

ON or OFF

The MUTE CONTROLLER normally sends a MIDI program change command

every time the ^RECALLI button is pressed, corresponding to the PATCH

number shown in the DISPLAY.Also, if a MIDI program change is received, the

controller will respond by recalling the ^{PATCH MUTE}matching that program

change. Setting Pgm to ^OFFdisables the sending and receiving of MIDI pro-

gram changes.

p. 137

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7^{microprocessor muting system}

X-Eight owner’s manual

mute control panel

module

block diagram

typical channel

p. 138

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^{microprocessor muting system}7

features

changing/reviewing utility settings

The ^UTILITYsettings can be accessed by entering UTILITY mode.Once there,

the different parameters can be changed to suit user’s preferences. The

changes stay in effect until they are again modified by the user, or a ^SYSTEM

^RESETis performed which changes them all back to their default settings.

utility mode

1 Enter UTILITY mode:

Press the ^{MICRO UTILITY}button F, it is a latching switch, and the system

will stay in ^UTILITYmode while this button is depressed.The DISPLAY B

now shows the first parameter—uP of the parameter list.

2 Select a ^PARAMETERto edit

Use the ^UP/DOWN keys A to scroll through the list of available PARAMETERS.

3 View the current setting

Press the ^RECALLI button.The ^DISPLAYwill change from showing the PARA-

METER to showing the PARAMETER’s current setting.

4 Changing the setting

The only way to get

While the ^DISPLAYis showing parameter settings (not the parameter

itself), the ^UP/^DOWNkeys will scroll through the list of possible settings

for that parameter. Select the new-setting and press the ^RECALLbutton

back to showing the

parameter is to press the

RECALL button—even if

no-change is desired, the

RECALL button must be pressed.

again.The ^DISPLAYwill briefly show

vated and the ^DISPLAYwill go back to showing the parameter.

, the displayed setting will be acti-

****

Make sure the display is

showing the desired setting

when RECALL is pressed. Then

return to step-two above,

and continue to select and

change parameters.

5 Exit ^UTILITYmode

When finished, press-and-release the ^{MICRO UTILITY}F key, the ^{MUTE SYSTEM}

returns to NORMAL mode with the new-settings in place.

p. 139

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8^{power supply}

X-Eight owner’s manual

model 5A power supply

HS master rear-panel

Ins ert

Send

Ins ert

Send

Return

Right

Out

Left

Out

Alt R Out

Alt L Out

DC In

specifications

RT group rear-panel

output power

+18V @ 5A DC

-18V @ 5A DC

+12V @ 4A DC

+48V @ 0.75A DC

two Hirose JR16RK-7S connectors on rear

connector meets JIS C 5432 standard

DC out recepticle

DC out cable

grey polyurethane outer jacket, 15 feet long

seven-way, 14-gauge stranded conductors

rated 600 volts, 80 degrees C

UL and CSA approved

Group 6 Out Group 5 Out

Hirose JR16PK-7S and JR16PK-7P connectors fitted

90 to 250 volts @ 4.5 amps maximum

universal AC input voltage. No changes needed

0.5 amps idle

AC mains power supply

DC In

IEC 320 C-13 3-pin 15 amp recepticle

removable IEC type

AC mains

recepticle cable

with country-specific mains plug fitted

approvals

chassis

UL, CSA, and CE

two-space 19 inch rack mount unit

3.5 inches tall, 17 inches wide, 12 inches deep.

weight: 18 pounds

p. 140

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^{power supply}8

power supply usage

supply identification

The type of power supply can be identified by the model number shown

on the back of the chassis and panel label.

power requirements

The X-Eight power supplies have certain electrical requirements for proper

operation. If possible the power supply should be connected to a dedicated

circuit. Should any other appliance on the same circuit draw enough current

to overload the circuit, the breaker or fuse will trip causing loss of power to

the console.

Note the maximum cur-

rent draw specifications

at left.

Be sure that the circuit to

which you connect the sup-

ply can handle the draw.

The power switch on the supply front panel is also a circuit breaker;there

is no power fuse.Should the supply ever shut down,or trip at start up,sim-

ply push the switch to the off position and then push on again.

ground linking

SAFETY CONSIDERATIONS—each new power supply is shipped with the AC

third-wire ground connected to the console chassis ground.The connec-

tion is made at the rear of the power supply unit.This is necessary for safe-

ty reasons so that exposed metal parts are grounded. In the event of a live

conductor making contact with the console chassis or the power supply

chassis then the current will flow to ground without a safety hazard arising.

When the console is dis-

connected from the power

supply the chassis ground

connection to AC third-wire

ground is broken and safety

protection is lost.

Uninterruptible grounding—in a fixed installation for example,make a con-

nection directly to the console chassis from the safety ground. Disconnect

the ground link on the rear of the power supply.This disconnects console

ground from power supply AC third-wire ground which could possibly

create a hum-loop.

twin-supply operation

When twin-supplies are in use for automatic back-up, then the ground

links on both supplies should be fitted.

In a situation where the safety ground to the console chassis has been con-

nected and the ground path via the power supply is causing a hum-loop,

then disconnect the ground links on both power supplies.

p. 141

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8^{power supply}

X-Eight owner’s manual

model 5A power supply

HS master rear-panel

Ins ert

Send

Ins ert

Send

Return

Right

Out

Left

Out

Alt R Out

Alt L Out

DC In

specifications

RT group rear-panel

output power

+18V @ 5A DC

-18V @ 5A DC

+12V @ 4A DC

+48V @ 0.75A DC

two Hirose JR16RK-7S connectors on rear

connector meets JIS C 5432 standard

DC out recepticle

DC out cable

grey polyurethane outer jacket, 15 feet long

seven-way, 14-gauge stranded conductors

rated 600 volts, 80 degrees C

UL and CSA approved

Group 6 Out Group 5 Out

Hirose JR16PK-7S and JR16PK-7P connectors fitted

90 to 250 volts @ 4.5 amps maximum

universal AC input voltage. No changes needed

0.5 amps idle

AC mains power supply

DC In

IEC 320 C-13 3-pin 15 amp recepticle

removable IEC type

AC mains

recepticle cable

with country-specific mains plug fitted

approvals

chassis

UL, CSA, and CE

two-space 19 inch rack mount unit

3.5 inches tall, 17 inches wide, 12 inches deep.

weight: 18 pounds

p. 142

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^{power supply}8

power supply usage

console and power supply grounding

Console chassis ground is electrically connected to: the audio ground, pin-

1 of XLR connectors, the sleeves of 1/4” sockets,and to the terminal ^CON-

^{SOLE GROUND}at the rear of the power supply.

This connection should

The AC third-wire connection in the power supply cable connects the

metal chassis of the power supply to safety ground.

never be disturbed.

Hazardous voltages exist

inside the power supply

which require the case to

be grounded.

Rack-mounting—the power supply ground may transfer to the rack case

through the front fixing screws, though this connection is not reliable.

Sound system use—the grounding requirements may call for the ground

link to be disconnected.This is permissible only when an alternative ground

path has been provided.If in doubt seek the advice of an experienced elec-

trical engineer.

redundant power supplies

The console power supply can be considered the single most important

component in an entire sound system. If a power amplifier, a signal proces-

sor or a console input goes down in the middle of a show, the show can

still go on. But if the console loses its power supply, the show is over. For

this reason, it is always good practice to incorporate redundant power

supplies for mixing consoles used in professional sound reinforcement

applications.

This should be considered a high priority even when using a very reliable

power supply. In even the most carefully designed sound systems, each

component runs the risk of failure at sometime or another.

The use of redundant

power supplies is

Crest Audio uses two methods for attaching redundant power supplies to

consoles. In both methods, the two (or more) power supplies should be

kept on while the console is in use to insure a smooth transition in the

event that one shuts off.

probably the single biggest

step that can be taken in

reducing or eliminating the

chance of a cancelled per-

formance due to system

failure.

If one power supply drops in voltage or shuts off completely,the other unit

takes over without any interruptions or audible glitches.As an added pre-

caution,the two (or more) power supplies can be fed by separateAC lines.

This will guarantee that the console does not shut off if one of theAC lines

goes down.

multiple power supplies in-series

Crest Audio X-Series consoles use this method for backup. Since each

power supply includes voltage switching circuitry, more than two units can

be hooked up in series. A DC link cabel ties the power supplies together.

p. 143

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