User’s manual
Version 1.3 June 2006
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ULTRACOUSTIC ACX1000
ULTRACOUSTIC
2 x 60-Watt, 2-Channel Stereo Acoustic Instrument
Amplifier with Multi-FX Processor
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Powerful 2 x 60-Watt amplifier specifically designed for acoustic instruments and vocals
Dedicated tube emulator adds warmth and presence to instruments and vocals
2 independent channels with separate volume controls, dedicated EQs and each two feedback filters
Instrument channel produces warm and transparent sound for pickup-equipped instruments and features
additional Attack and FX Return controls plus 2 tunable notch filters for feedback suppression
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Microphone/Line channel provides microphone inputs with phantom power for both dynamic and condenser
microphones, Enhancer control, FX Return control and 2 tunable notch filters optimized for suppressing
microphone feedback
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Active, ultra-musical 3-band EQ per channel
24-bit stereo multi-FX processor with high-resolution 24-bit converters
23 algorithms for authentic effects such as Reverb, Delay, Rotary Speaker, Chorus, Flanger, Stereo
Panning, Tremolo and various effects combinations for instrument and microphone/line channels
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99 programs stored in 4 presets that can be recalled via footswitch
Parallel Tuner output for tuner connection
Adjustable stereo Aux input on phone jacks for adding line signals (e.g. CD player, drum computer, etc.),
with Aux level control and Mute switch
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Separate insert option for external effects devices available for both channels as well as master section
Footswitch FS114 for effects switching included
MIDI effects selection via program change commands
Master volume control with switchable Phase correction
High-quality components and exceptionally rugged construction ensure long life
Conceived and designed by BEHRINGER Germany
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ULTRACOUSTIC ACX1000
FOREWORD
TABLE OF CONTENTS
1. INTRODUCTION ......................................................... 5
Dear Customer,
1.1 The design concept ........................................................ 5
1.1.1 Tube emulator ...................................................... 5
1.2 Before you begin ............................................................ 6
1.3 Online registration ........................................................... 6
welcome to the team of
BEHRINGER users and
thank you very much for
expressing your confi-
dence in us by purchasing
the ACX1000.
2. CONTROL ELEMENTS ............................................... 7
Writing this foreword
for you gives me great
2.1 Front panel ...................................................................... 7
2.2 Rear panel ....................................................................... 9
pleasure, because it
represents the culmi-
nation of many months
3. EFFECTSTABLE .......................................................10
3.1 MIDI control .................................................................... 10
of hard work delivered
by our engineering team
to achieve a very am-
bitious goal: To present
4. INSTALLATION ......................................................... 11
4.1 Mains connection .......................................................... 11
4.2 Audio connections ........................................................ 11
4.3 MIDI connection ............................................................. 11
4.4 MIDI implementation ....................................................... 12
you with an excellent
2-channel acoustic guitar
amplifier which features
authentic sound quality
and an integrated digital multi-effects device, not to forget the
professional design. The task of designing our new ACX1000
certainly meant a great deal of responsibility which we assumed
by focusing on you, the discerning user and musician. Meeting
your expectations also meant a lot of work and night shifts. But
it was fun, too. Developing a product usually brings a lot of
people together, and what a great feeling it is when all who
participated in such a project can be proud of what they’ve
achieved.
5. SPECIFICATIONS .....................................................13
6. WARRANTY ..............................................................14
FEDERALCOMMUNICATIONS COMMISSION
COMPLIANCE INFORMATION .....................................15
It is our philosophy to share our enjoyment with you, because
you are the most important member of the BEHRINGER team.
With your highly competent suggestions for new products you’ve
made a significant contribution to shaping our company and making
it successful. In return, we guarantee you uncompromising quality
as well as excellent technical and audio properties at an extremely
reasonable price. All of this will enable you to give free rein to
your creativity without being hampered by budget constraints.
We are often asked how we manage to produce such
high-quality devices at such unbelievably low prices. The answer
is quite simple: it’s you, our customers! Many satisfied customers
mean large sales volumes enabling us to get better purchasing
terms for components, etc. Isn’t it only fair to pass this benefit on
to you? Because we know that your success is our success
too!
I would like to thank all of you who have made the
ACX1000 possible. You have all made your own personal
contributions, from the developers to the many other employees
at this company, and to you, the BEHRINGER user.
My friends, it’s been worth the effort!
Thank you very much,
WARNING!
Uli Behringer
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It should be pointed out, that extreme output
volumes may damage your ears and/or your
headphones. Turn down all LEVEL controls before
you switch on the unit. Always pay attention to an
appropriate volume.
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ULTRACOUSTIC ACX1000
1. INTRODUCTION
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Sophisticated analog technology with a “feel factor” only
analog technology can provide.
Thank you very much for expressing your confidence in
BEHRINGER products by purchasing the ULTRACOUSTIC
ACX1000. With the ULTRACOUSTIC, you have acquired a state-
of-the-art 2-channel amplifier that can be operated easily and
quickly, and enables you to create out-of-the-ordinary sounds
for a variety of applications.
Latest DSP technology to give you a broad range of modern
studio-compatible effect sounds.
Rugged and solid construction which even withstands the
roughest handling.
Intuitive operation, so that you can focus your mind on
what is most important to you: your music!
When developing the ACX1000, our top objective was to
reproduce the pure and detail-rich sound of acoustic instruments
and to help you work out the characteristic properties of your
instrument. For this reason the instrument channel includes a
number of controls tailored specifically to meet the requirements
of acoustic instruments. What’s more, your ULTRACOUSTIC has
a second microphone/instrument channel with about the same
control elements plus an enhancer circuit that gives, for example,
vocals increased presence and liveliness. A very special feature
is the ULTRACOUSTIC’s digital multi-effects processor with its
wealth of studio-compatible effects. The tube emulator gives
audio signals in both channels unmistakable tube quality and
adds that much sought-after effect of warmth and transparency.
When working in the studio or on stage, you will find the numerous
connection options on your ACX1000 very helpful. And despite
its extremely flexible design, your ULTRACOUSTIC can be
operated easily and intuitively.
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This manual first describes the terminology used,
so that you can fully understand the ULTRACOUSTIC
and its functions. Please read the manual carefully
and keep it for future reference.
1.1 The design concept
The philosophy behind BEHRINGER products guarantees a
no-compromise circuit design and employs the best choice of
components. The operational amplifiers used in the
ULTRACOUSTIC are exceptional: they boast extreme linearity
and very low distortion characteristics. To complement this
design, the choice of components include low-tolerance resistors
and capacitors, high-quality potentiometers and several other
stringently selected elements.
BEHRINGER is an audio engineering company that has been
successfully developing products for studio and live applications
for many years now. Our range of products includes
microphones and a variety of 19" devices (compressors,
enhancers, gates, tube processors, headphone amps, digital
effects devices, DI boxes etc.) as well as various monitoring
and P.A. speakers plus professional live and recording consoles.
The name of BEHRINGER stands for no-compromise quality, fully-
featured products and exemplary service—even years after
purchase—as well as sensationally low prices, which allow
any ambitious music lover to make their musical dreams come
true.
The ULTRACOUSTIC uses SMD technology (Surface Mounted
Device). These subminiature components adapted from
aerospace technology allow for an extreme packing density to
further improve the overall reliability.
The super-robust steel enclosure of your ULTRACOUSTIC,
with its generously proportioned high-capacity power supply
and temperature-controlled active fan, makes sure that your
ACX1000 keeps on working even when the going gets tough.
The cabinet is made of high-grade, non-polluting E1-MDF boards,
which are grooved, multi-glued and free of formaldehyde.
We also set great store by flexibility, which has become a
particularly important factor in the music business over the past
few years. Modern guitarists and musicians need to offer a
broad range of sounds, but should still be able to play in different
kinds of applications at short notice: home recording, studio, live
concerts. For this reason, it has always been our prime concern
to give you a maximum of functions that can still be operated
intuitively and quickly—no matter what kind of style you play.
1.1.1 Tube emulator
A special FET circuit in your ULTRACOUSTIC emulates the
positive characteristics of a tube exciter, producing additional
harmonics and a subtle compression effect which gives your
guitar sounds the power to make themselves heard and adds
sustain and definition. Acoustic guitars, in particular, with their
wide dynamic range, need to produce a homogeneous sound
image in all registers. The FET circuit makes sure that even the
high registers have sufficient sustain and won’t get drowned.
While the WARMTH control allows you to add the tube sound
effect as desired.
As technology advances, you’ve got to keep track of latest
technological breakthroughs to avoid falling by the wayside. We
too have continuously improved the ULTRACOUSTIC and included
many of your valuable suggestions. We have spared neither
expense nor effort to test different types of circuitry and
speakers until the results have given us complete satisfaction.
After all, we really want to give you fully designed and developed
products that meet your expectations in every respect. The
ULTRACOUSTIC shall be a useful tool for years to come, which
is why we’ve equipped the effects modules of our entire guitar
amplifier series with EPROMS that can be updated. In this way,
we can keep working on new algorithms and considering your
ideas and suggestions. The resulting software updates will be
made available for free on the Internet, so as to ensure that your
amp will never be outdated.
By using solid-state components we succeeded in eliminating
tube-specific interference noise to a great extent; the actual
tube effect is thus achieved without additional noise or hum.
We’ve packed our entire experience into this latest-generation
acoustic guitar amp. Many people contributed to this project of
intense development: studio musicians, collectors of vintage
guitar amps, music and guitar lovers alike. All of them helped us
develop an amplifier that gives you the best of all worlds:
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1. INTRODUCTION
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ULTRACOUSTIC ACX1000
1.2 Before you begin
1.3 Online registration
Your BEHRINGER ULTRACOUSTIC was carefully packed in
the factory and the packaging is designed to protect the unit
from rough handling. Nevertheless, we recommend that you
carefully examine the packaging and its contents for any signs
of physical damage, which may have occurred during transit.
Please do remember to register your new BEHRINGER
equipment right after your purchase by visiting
kindly read the terms and conditions of our warranty carefully.
Should your BEHRINGER product malfunction, our goal is to
have it repaired as quickly as possible. To arrange for warranty
service, please contact the retailer from whom the equipment
was purchased. Should your BEHRINGER dealer not be located
in your vicinity, you may directly contact one of our subsidiaries.
Corresponding contact information is included in the original
equipment packaging (Global Contact Information/European
Contact Information). Should your country not be listed, please
contact the distributor nearest you. A list of distributors can be
found in the support area of our website (www.behringer.com).
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Damaged units should NEVER be sent directly to us.
Please inform the dealer from whom you acquired
the unit immediately as well as the transportation
company from which you took delivery of the unit.
Otherwise, all claims for replacement/repair may
be rendered invalid.
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Please always use the original packaging to avoid
damage due to storage or shipping.
Registering your purchase and equipment with us helps us
process your repair claims quicker and more efficiently.
Never let unsupervised children play with the A16
or with its packaging.
Thank you for your cooperation!
Please dispose of all packaging materials in an
environmentally friendly fashion.
Be sure that there is enough space around the unit for cooling
and please do not place the ULTRACOUSTIC on high temperature
devices such as radiators etc. to avoid overheating.
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Before you connect your ULTRACOUSTIC to the
mains, please make sure that your local voltage
matches the voltage required by the unit!
The mains connection of the ULTRACOUSTIC is made by using
the enclosed mains cable and a standard IEC receptacle. It meets
all of the international safety certification requirements.
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Please make sure that all units have a proper
ground connection. For your own safety, never
remove or disable the ground conductor of the unit
or of the AC power cable.
IMPORTANT NOTES CONCERNING INSTALLATION
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The sound quality may diminish within the range of
powerful broadcasting stations and high-frequency
sources. Increase the distance between the
transmitter and the device and use shielded cables
for all connections.
The MIDI connection (IN) is made with standardized DIN plug-in
connectors. An optocoupler has been used for isolated data
communications.
You will find additional information in chapter
“INSTALLATION”.
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6
1. INTRODUCTION
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ULTRACOUSTIC ACX1000
2. CONTROL ELEMENTS
Fig. 2.1: The front panel of the ULTRACOUSTIC
Your BEHRINGER ULTRACOUSTIC ACX1000 is equipped with 20 front panel controls, 9 push-buttons and a 2-digit, 7-segment LED
display. Two 1/4" phone jacks and one XLR jack are available as well.
2.1 Front panel
Fig. 2.2: The front panel control elements
Use the 1/4" INSTRUMENT jack on the instrument channel
to connect an acoustic guitar to your ULTRACOUSTIC.
Please use a commercial 1/4" jack mono cable (no DIY (Do
It Yourself), better ask your specialized dealer), with good
mechanical and electrical shielding, so as to avoid
unpleasant surprises during rehearsals or concerts.
The FEEDBACK 1 control adjusts a notch filter that allows
you to suppress feedback frequencies or other forms of
interference. The frequency range is from 65 Hz through
400 Hz. To detect and suppress interference frequencies,
please turn the FEEDBACK 1 control slowly.
The FEEDBACK 2 control determines the frequency of a
The PHASE switch reverses the instrument channel’s
phase by 180°. Use this function to eliminate feedback
problems or phase errors caused by dual pickup systems.
second notch filter, ranging from 150 Hz through 900 Hz.
Use the EFFECT control to determine the intensity of the
effect selected on the effects module (instrument channel).
The TUNER switch allows you to mute the instrument
channel’s output. The TUNER jack on the rear of your
ACX1000 provides a copy of the guitar signal for connection
to an external tuner.
The MIC jack is the balanced XLR microphone input of the
microphone/line channel.
The balanced LINE/INST. jack of the microphone/line
channel can be used for line-level signals, e.g. keyboards,
samplers etc.
The GAIN control governs the volume level of the instrument
channel.
The +48 V switch activates the phantom power supply for
the XLR microphone input, providing the operating voltage
required for condenser microphones.
When the input signal overdrives the instrument channel,
the CLIP LED signals this condition. Reduce the input gain
with the GAIN control, until the CLIP LED just stops lighting
up. Occasional flashing of the CLIP LED, caused by signal
peaks, is harmless though, because the instrument channel
has sufficient headroom.
Use the GAIN control to determine the volume level of the
microphone/line channel.
When the input signal overdrives the microphone/line
channel, the CLIP LED signals this condition. Reduce the
input gain with the GAIN control, until the CLIP LED just
stops lighting up. Occasional flashing of the CLIP LED,
caused by signal peaks, is harmless though, because the
microphone/line channel, too, has sufficient headroom.
The BASS control in the EQ section allows you to boost/cut
the bass frequencies on the instrument channel.
With the MID control you can boost/cut the midrange
frequencies on the instrument channel.
Finally, the TREBLE control governs the instrument
channel’s high frequency gain.
The BASS control in the EQ section allows you to boost/cut
the bass frequencies on the microphone/line channel.
The ATTACK control is quite useful to emphasize attack
sounds. For example, when you pick the strings of your
guitar with your fingers, try turning the ATTACK control to
the right. The more you do so, the more “accented” the
sound becomes.
With the MID control you can boost/cut the midrange
frequencies on the microphone/line channel.
Finally, the TREBLE control governs the microphone/line
channel’s high frequency gain.
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Please note that with all three EQ controls set fully
to the left (instrument channel), the resulting signal
will be very low-volume.
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2. CONTROL ELEMENTS
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ULTRACOUSTIC ACX1000
With the ENHANCER control you can add treble
frequencies to the microphone/line signal, thus improving
the audio signal’s power and transparency.
The DISPLAY reads the program number of the currently
active preset. Use the table printed on the effects module
to locate the various groups of effects and associated
program numbers. “--” means that the effects module is
disabled.
The FEEDBACK 1 control adjusts a notch filter that allows
you to suppress feedback frequencies or other forms of
interference. The frequency range is from 650 Hz through
4 kHz. To detect and suppress interference frequencies,
please turn the FEEDBACK 1 control slowly.
When you press the POWER switch on the rear of the unit,
the POWER LED lights up. Be sure to properly connect
your ULTRACOUSTIC to the mains before (see chapter 3
“INSTALLATION”).
The FEEDBACK 2 control determines the frequency of a
second notch filter, ranging from 1.5 kHz through 9.5 kHz.
Use the EFFECT control to determine the intensity of the
effect selected on the effects module (microphone/line
channel).
The WARMTH control adjusts the ULTRACOUSTIC’s tube
emulator circuit. The more you turn this control to the right,
the more upper harmonics are added to the signals on the
instrument or microphone/line channels, which results in a
sound of unobtrusive brilliance with improved power and
transparency.
Use this CONTROL INDICATOR to assess the amount of
upper harmonics added with the WARMTH control.
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To achieve the maximum tube emulation effect, both
channels should be set to correct levels. The CLIP
LED should be flashing with signal peaks only. Make
sure it never lights up all the time.
The PHASE switch reverses the phase of the mix signal
by 180°. Use this switch to eliminate feedback problems.
The MASTER control determines the overall volume level
of your ULTRACOUSTIC.
The ULTRACOUSTIC features a limiter circuit in the master
section. The LIM LED lights up as soon as the limiter is on.
The AUX input on the rear of your ACX1000 can be muted
with the MUTE switch.
The AUX LEVEL control in the master section adjusts the
volume level of the AUX signal (e.g. drum computer,
playback) fed in via the AUX IN or TAPE IN jacks on the rear
of the ULTRACOUSTIC.
Your ACX1000 features an on-board effects module that
produces 23 different types of effects comprising 99 effect
variations plus associated program numbers.
Use the four PRESET buttons to assign an effects program
to one of the PRESET buttons and recall it from there. To
save a preset selected with the PROGRAM control, simply
press one of the four PRESET buttons for about 2 seconds,
until its LED lights up. To recall a stored preset, press the
corresponding PRESET button. The mix of signals adjusted
with the EFFECT control will of course be stored as well.
To adjust the MIDI receive channel, press PRESET buttons
#3 and #4. Then, select a MIDI channel with the PROGRAM
control (1 through 16, “on” = Omni, “OF” = inactive). Finally,
quit the menu by pressing either one of the PRESET buttons.
Select one of 99 effect programs with the PROGRAM
control.
The INSTRUMENT CLIP LED lights up as soon as the
effects module starts distorting. Reduce the input gain on
the instrument channel.
The MIC CLIP LED lights up as soon as the effects module
starts distorting. Reduce the input gain on the microphone/
line channel.
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2. CONTROL ELEMENTS
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ULTRACOUSTIC ACX1000
2.2 Rear panel
Fig. 2.3: The rear panel connectors
Use the POWER switch to put the ULTRACOUSTIC into
The AUX IN allows you to feed in additional stereo signals,
for example, to play with a drum computer or some sort of
playback. Additionally, you can use the AUX IN in
combination with the INSERT SEND as a parallel effect
path: connect the INSERT SEND to the input and the AUX IN
to the output of the effects device (INSERT RETURN jacks
should not be used in this case!). Thus, the signal path
inside the amplifier will not be interrupted and you can add
the effect portion from the external device, using the AUX
LEVEL control. Please note that the external effects device
must be set to 100% wet for this purpose.
operation.
FUSE HOLDER / VOLTAGE SELECTOR. Please make
sure that your local voltage matches the voltage indicated
on the unit, before you attempt to connect and operate the
ULTRACOUSTIC. Blown fuses may only be replaced by
fuses of the same type and rating. Some models allow for
inserting the fuse holder in two different positions, in order
to switch over from 230 V to 120 V operation, and vice
versa. Please note that for 120 V operation outside Europe,
you need a fuse of a higher rating (see chapter 3
“INSTALLATION”).
This is the MIC INS. SEND jack of the microphone/line
channel’s insert path. Connect this jack to the input of an
external effects device or compressor.
Use the enclosed power cord to connect the unit to the
mains.
This is the MIC INS. RETURN jack of the microphone/line
channel’s insert path. Connect this jack to the output of an
external effects device.
SERIAL NUMBER.
Connect the enclosed footswitch to the FOOTSWITCH
jack. The footswitch allows you to recall the four effects
presets.
The instrument channel also features an insert path. This
is the INSTR. INS. SEND jack.
MIDI IN. This connector gives you MIDI remote control over
your ULTRACOUSTIC. You can change effects programs
by means of program change commands.
The INSTR. INS. RETURN jack is used to feed back the
effect signal to the ACX1000.
The TUNER output always provides the instrument
channel’s audio signal to feed an external tuner.
The balanced DIRECT OUT jack provides a line-level copy
of the instrument channel’s signal. Use this jack to connect
an external power amp or mixing console.
Your ULTRACOUSTIC also features a serial stereo master
insert path, which allows you to insert external effects
devices. These are the MASTER INSERT SEND jacks for
the left and right channels, which should be connected to
the inputs of the external effects device. You can also tap
a stereo signal from these connectors.
These are the MASTER INSERT RETURN jacks for
connection to the outputs of an external effects device.
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Please note that when using the serial effects path,
the external effects device should not be set to
100% wet (100% effect signal); otherwise, there will
be no direct signal portion fed back to the
ULTRACOUSTIC.
The TAPE OUT provides
a
stereo copy of the
ULTRACOUSTIC’s audio signal, e.g. for recording purposes.
The TAPE OUT is on RCA jacks.
The TAPE IN jacks perform the same function as the AUX
IN. However, due to the RCA connectors you can also
connect a tape deck or hi-fi system directly to the TAPE IN
jacks.
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2. CONTROL ELEMENTS
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ULTRACOUSTIC ACX1000
3. EFFECTS TABLE
3.1 MIDI control
With its built-in MIDI interface you can control the
ULTRACOUSTIC via MIDI, for example, to select effects from a
MIDI sequencer (studio), or from a master keyboard or MIDI
footcontroller (live).
Preset no.
--
Effect
Bypass
Effect type
-
01 - 03
04 - 06
07 - 09
10 - 13
14 - 15
16 - 19
20 - 22
23 - 25
26 - 28
29 - 35
36 - 42
43 - 47
48 - 58
59 - 63
64 - 68
69 - 70
71 - 73
74 - 76
77 - 78
79 - 81
82 - 87
88 - 93
94 - 96
97 - 99
Chorus + Delay + Reverb
Chorus + Room 1
Chorus + Room 2
Chorus + Hall
Flanger + Reverb
Delay + Room 1
Delay + Room 2
Delay + Hall
Parallel
Parallel
Parallel
Parallel
Parallel
Parallel
Parallel
Parallel
Parallel
Single
Single
Single
Single
Single
Single
Single
Single
Single
Single
Dual
Connect the MIDI IN jack of your ULTRACOUSTIC to the MIDI
OUT jack of a MIDI footcontroller. Now, enable the MIDI functions
on your ULTRACOUSTIC by pressing the PRESET buttons #3
and #4 for about two seconds: the two control LED’s of PRESET
buttons #3 and #4 start flashing, the right decimal point in the
display lights up. Select a MIDI channel with the PROGRAM control
(1 through 16, “on” = Omni, “OF” = inactive) and quit the menu by
pressing either one of the PRESET buttons. “Omni” mode means
that your ULTRACOUSTIC receives and processes MIDI
information on all MIDI channels. Of course, you should select
the same channel both on your MIDI footcontroller and ACX1000
(see MIDI footcontroller user’s manual).
Delay + Chorus
Room
Hall
Plate
You can select presets via MIDI using program change
commands. When you send program change command #127,
the effects module of your ACX1000 will be bypassed, i.e. you
will hear no effect. As is usual with MIDI program change
commands, program change #0 corresponds to program #1,
and program change #1 to program #2, etc. (see table 4.1 in the
appendix). The program change numbers 99 through 102 select
the preset stored for the four PRESET buttons. After changeover
the preset is activated immediately, i.e. it will not be affected by
previously adjusted bypass settings.
Delay
Multitap Delay
Chorus
Flanger
Rotary Speaker
Tremolo
Pan
Reverb / Reverb
Slow Chorus / Reverb
Fast Chorus / Reverb
Delay / Reverb
Rotary Speaker / Reverb
Dual
Dual
Dual
Dual
Tab. 3.1: The effect algorithms of the ULTRACOUSTIC
A very special feature of your ULTRACOUSTIC is its built-in
multi-effects processor that creates a variety of first-class,
studio-compatible algorithms. This effects module provides a
total of 99 preset, organized in 23 different groups of effects.
Each group comprises a number of presets with varying
parameter settings and covering a broad spectrum of effects
and effects combinations.
The range of effects provided consists of single, parallel and
dual effects. The single and parallel effects provide an effect or
effects combination for both channels. The dual effects allow
you to give each channel its own effect.
Use the four PRESET buttons to store one effects program
each, including the mix ratio adjusted with the EFFECT controls
(original vs. effect signal for both channels). To store a preset
selected with the PROGRAM control, simply press one of the
four PRESET buttons for about 2 seconds, until its associated
LED lights up.
To recall the four presets stored, press one of the PRESET
buttons or one of the four buttons on the enclosed footswitch.
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3. EFFECTS TABLE
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ULTRACOUSTIC ACX1000
4. INSTALLATION
4.1 Mains connection
Please ensure that the ULTRACOUSTIC is set to the
correct supply voltage before connecting the unit to the
AC power system! Three triangular markings can be found on
the fuse holder at the AC power connection socket. Two of
these three triangles will be aligned with one another. The
ULTRACOUSTIC is set to the operating voltage shown next to
these markings and can be switched over by twisting the fuse
holder by 180°. IMPORTANT: This does not apply to export
models designed only for 120 V~!
The mains connection of the ULTRACOUSTIC is made by using
the enclosed mains cable and a standard IEC receptacle. It meets
all of the international safety certification requirements.
Fig. 4.3: 1/4" stereo jack connector
4.3 MIDI connection
4.2 Audio connections
The MIDI standard (Musical Instruments Digital Interface) was
developed in the early 80’s to enable electronic musical
instruments of different makes to communicate with each other.
Over the years the range of MIDI applications has constantly
expanded, and today it is completely normal to network entire
recording studios using the MIDI standard.
Except for the MIC and LINE/INST. inputs and the DIRECT OUT,
the audio inputs and outputs of your BEHRINGER ULTRACOUSTIC
are on unbalanced connectors. Please use commercially available
RCA connectors for the TAPE inputs and outputs.
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Please ensure that only qualified persons install
and operate the ULTRACOUSTIC. During installation
and operation the user must have sufficient
electrical contact to earth. Electrostatic charges
might affect the operation of the ULTRACOUSTIC!
At the heart of this network we find a computer loaded with a
sequencer software that controls not only the keyboards but
also effects and other peripheral devices. In such a studio you
could control your ULTRACOUSTIC in real time from a computer.
In particular, when playing live gigs you can use a MIDI
footcontroller to control both the effect parameters and channel/
effect changes on your ULTRACOUSTIC.
The MIDI connector on the rear of your ULTRACOUSTIC is an
internationally standardized 5-pin DIN jack. To connect your
ULTRACOUSTIC to other MIDI equipment, you need a dedicated
MIDI cable, which is commercially available in various lengths.
However, you can solder your own cables using 2-conductor
shielded cables (e.g. microphone cables) and two rugged 180°
DIN plugs: pin 2 (center) = shield; pins 4 and 5 (right and left of
pin 2) = internal conductor; pins 1 and 3 (the outer pins) are not
used. MIDI cables should not exceed a length of 15 meters.
ꢀ
Make sure that pin 4 is connected to pin 4, and pin 5
to pin 5 on both plugs.
Fig. 4.1: XLR connections
MIDI IN: receives MIDI controller information. The receiving
channel can be set with the buttons UP and DOWN. On = Omni,
i.e. MIDI data are received and processed on all channels (see
section 3.2).
Fig. 4.2: 1/4" mono jack
11
4. INSTALLATION
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ULTRACOUSTIC ACX1000
4.4 MIDI implementation
MIDI Implementation Chart
Function
Transmitted Recognized Remarks
memorized
Default
Changed
X
X
OFF, 1 - 16
OFF, 1 - 16
Basic
Channel
Default
Messages
Altered
X
X
X
1, 2
X
X
Mode
X
X
X
X
Note
Number
True Voice
Note ON
Note OFF
X
X
X
X
Velocity
Keys
Channels
X
X
X
X
After
Touch
Pitch
X
X
X
Bender
Control
X
X
O (0 - 98)
127:
Bypass
99 - 102:
PRESET
BUTTON
1 - 4
Progr.
Change
X
X
System
Exclusive
X
Song Pos.
Song Sel.
Tune
X
X
X
X
X
X
System
Common
System
Real Time
Clock
Commands
X
X
X
X
Local
ON/OFF
All notes OFF X
Active Sense
Reset
X
X
X
X
X
Aux
Messages
X
X
Notes
O = YES, X = NO
Mode 1:
Mode 2:
OMNI ON
OMNI OFF
Tab. 4.1: MIDI implementation
12
4. INSTALLATION
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ULTRACOUSTIC ACX1000
5. SPECIFICATIONS
AUDIO INPUTS
POWER SUPPLY
Mains voltage
USA/Canada 120 V~, 60 Hz
China/Korea 220 V~, 50 Hz
U.K./Australia 230 V~, 50 Hz
Instrument channel
Connector
Type
1/4" phone jack
unbalanced, RF filtered input
app. 10 MΩ
Europe
Japan
230 V~, 50 Hz
100 V~, 50 - 60 Hz
Input impedance
Microphon/line channel
Microphone input
Connector
general
export model 120/230 V~, 50 - 60 Hz
42 Watts min./200 Watts max.
100 - 120 V~: T 5 A H 250 V
200 - 240 V~: T 2.5 A H 250 V
standard IEC receptacle
XLR
Power consumption
Fuse
Type
balanced, RF filtered input
app. 25 kΩ
Input impedance
Line input
Mains connection
Connector
1/4" TRS jack
Type
Input impedance
balanced, RF filtered input
app. 40 kΩ balanced
20 kΩ unbalanced
PHYSICAL
Dimensions
(H x W x D)
app. 17" (431.8 mm)
x 23 2/3" (600.65 mm)
x 10 3/5" (270 mm) / 12 3/10" (312.6 mm)
app. 48.51 Ibs (22 kg)
Aux/tape input
Connector
1/4" phone jack/RCA
unbalanced, RF filtered input
app. 10 kΩ
Type
Input impedance
Weight
AUDIO OUTPUTS
BEHRINGER is constantly striving to maintain the highest professional
standards. As a result of these efforts, modifications may be made from
time to time to existing products without prior notice. Specifications and
appearance may differ from those listed or illustrated.
Direct out output
Connector
Type
XLR
balanced, low-impedance
line-level output
app. 200 Ω balanced
100 Ω unbalanced
+24 dBu balanced
Output impedance
Max. output level
Tape output
Connector
RCA
Type
unbalanced, low-impedance
line-level output
app. 100 Ω
Output impedance
Max. output level
+20 dBu unbalanced
POWER AMPLIFIER
Power amp output
2 x 60 Watts
MIDI INTERFACE
Type
5-pin-DIN-socket, MIDI IN
DIGITAL PROCESSING
Converters
24-bit sigma-delta, 64/128-times
oversampling
Sampling rate
46.875 kHz
DISPLAY
Type
2-digit numeric LED display
LOUDSPEAKER
Type
2 x 8" loudspeaker, special
custom-made acoustic speaker
8 Ω (8" loudspeaker)
Impedance
Power handling
max. 60 Watts (8" loudspeaker)
13
5. SPECIFICATIONS
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ULTRACOUSTIC ACX1000
6. WARRANTY
2. If the product needs to be modified or adapted in order to
comply with applicable technical or safety standards on a national
or local level, in any country which is not the country for which
the product was originally developed and manufactured, this
modification/adaptation shall not be considered a defect in
materials or workmanship. The warranty does not cover any
such modification/adaptation, irrespective of whether it was
carried out properly or not. Under the terms of this warranty,
BEHRINGER shall not be held responsible for any cost resulting
from such a modification/adaptation.
§ 1 OTHER WARRANTY RIGHTS AND NATIONAL LAW
1. This warranty does not exclude or limit the buyer’s statutory
rights provided by national law, in particular, any such rights
against the seller that arise from a legally effective purchase
contract.
2. The warranty regulations mentioned herein are applicable
unless they constitute an infringement of national warranty law.
§ 2 ONLINE REGISTRATION
3. Free inspections and maintenance/repair work are expressly
excluded from this warranty, in particular, if caused by improper
handling of the product by the user. This also applies to defects
caused by normal wear and tear, in particular, of faders,
crossfaders, potentiometers, keys/buttons, tubes, guitar strings,
illuminants and similar parts.
Please do remember to register your new BEHRINGER equipment
conditions of our warranty carefully.
Registering your purchase and equipment with us helps us
process your repair claims quicker and more efficiently.
4. Damages/defects caused by the following conditions are not
covered by this warranty:
Thank you for your cooperation!
V
improper handling, neglect or failure to operate the unit in
compliance with the instructions given in BEHRINGER user
or service manuals.
§ 3 WARRANTY
1. BEHRINGER (BEHRINGER International GmbH including all
BEHRINGER subsidiaries listed on the enclosed page, except
BEHRINGER Japan) warrants the mechanical and electronic
components of this product to be free of defects in material and
workmanship for a period of one (1) year* from the original date
of purchase, in accordance with the warranty regulations
described below. If the product shows any defects within the
specified warranty period that are not excluded from this
warranty as described under § 5, BEHRINGER shall, at its
discretion, either replace or repair the product using suitable
new or reconditioned parts. In the case that other parts are used
which constitute an improvement, BEHRINGER may, at its
discretion, charge the customer for the additional cost of these
parts.
V
V
connection or operation of the unit in any way that does
not comply with the technical or safety regulations
applicable in the country where the product is used.
damages/defects caused by force majeure or any other
condition that is beyond the control of BEHRINGER.
5. Any repair or opening of the unit carried out by unauthorized
personnel (user included) will void the warranty.
6. If an inspection of the product by BEHRINGER shows that the
defect in question is not covered by the warranty, the inspection
costs are payable by the customer.
7. Products which do not meet the terms of this warranty will be
repaired exclusively at the buyer’s expense. BEHRINGER will
inform the buyer of any such circumstance. If the buyer fails to
submit a written repair order within 6 weeks after notification,
BEHRINGER will return the unit C.O.D. with a separate invoice
for freight and packing. Such costs will also be invoiced
separately when the buyer has sent in a written repair order.
2. If the warranty claim proves to be justified, the product will be
returned to the user freight prepaid.
3. Warranty claims other than those indicated above are expressly
excluded.
§ 4 RETURN AUTHORIZATION NUMBER
§ 6 WARRANTY TRANSFERABILITY
1. To obtain warranty service, the buyer (or his authorized dealer)
must call BEHRINGER (see enclosed list) during normal business
hours BEFORE returning the product. All inquiries must be
accompanied by a description of the problem. BEHRINGER will
then issue a return authorization number.
This warranty is extended exclusively to the original buyer
(customer of retail dealer) and is not transferable to anyone
who may subsequently purchase this product. No other person
(retail dealer, etc.) shall be entitled to give any warranty promise
on behalf of BEHRINGER.
2. Subsequently, the product must be returned in its original
shipping carton, together with the return authorization number to
the address indicated by BEHRINGER.
§ 7 CLAIM FOR DAMAGES
Failure of BEHRINGER to provide proper warranty service shall
not entitle the buyer to claim (consequential) damages. In no
event shall the liability of BEHRINGER exceed the invoiced value
of the product.
3. Shipments without freight prepaid will not be accepted.
§ 5 WARRANTY REGULATIONS
1. Warranty services will be furnished only if the product is
accompanied by a copy of the original retail dealer’s invoice.
Any product deemed eligible for repair or replacement under the
terms of this warranty will be repaired or replaced.
* Customers in the European Union please contact BEHRINGER
Germany Support for further details.
Technical specifications and appearance subject to change without notice. The information contained herein is correct at the time of printing. The names
of companies, institutions or publications pictured or mentioned and their respective logos are registered trademarks of their respective owners. Their use
neither constitutes a claim of the trademarks by BEHRINGER nor affiliation of the trademark owners with BEHRINGER. BEHRINGER accepts no
liability for any loss which may be suffered by any person who relies either wholly or in part upon any description, photograph or statement contained
herein. Colours and specification may vary slightly from product. Products are sold through our authorised dealers only. Distributors and dealers are not
agents of BEHRINGER and have absolutely no authority to bind BEHRINGER by any express or implied undertaking or representation. No part of this
manual may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying and recording of any kind, for
any purpose, without the express written permission of BEHRINGER International GmbH. BEHRINGER® is a registered trademark.
ALL RIGHTS RESERVED. © 2006 BEHRINGERInternational GmbH,
Hanns-Martin-Schleyer-Str. 36-38, 47877 Willich-Münchheide II, Germany.
Tel. +49 2154 9206 0, Fax +49 2154 9206 4903
14
6. WARRANTY
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ULTRACOUSTIC ACX1000
FEDERAL COMMUNICATIONS COMMISSION
COMPLIANCE INFORMATION
Responsible party name:
Address:
BEHRINGER USA, Inc.
18912 North Creek Parkway, Suite 200
Bothell, WA 98011, USA
Phone/Fax No.:
Phone: +1 425 672 0816,
Fax:
+1 425 673 7647
hereby declares that the product
ULTRACOUSTIC ACX1000
complies with the FCC rules as mentioned in the following paragraph:
This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15
of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a
residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed
and used in accordance with the instructions, may cause harmful interference to radio communications. However,
there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful
interference to radio or television reception, which can be determined by turning the equipment off and on, the
user is encouraged to try to correct the interference by one or more of the following measures:
V
V
V
Reorient or relocate the receiving antenna.
Increase the separation between the equipment and receiver.
Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
V
Consult the dealer or an experienced radio/TV technician for help.
This device complies with Part 15 of the FCC rules. Operation is subject to the following two conditions: (1) this
device may not cause harmful interference, and (2) this device must accept any interference received, including
interference that may cause undesired operation.
Important information:
Changes or modifications to the equipment not expressly approved by BEHRINGER USA can void the user’s authority
to use the equipment.
15
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