Directed Audio D1200 User Manual

OWNER’S

MANUAL

D1200

models

D2400

LIMITED TWO-YEAR CONSUMER WARRANTY

Directed Electronics, Inc. promises to the

original purchaser, to replace this product

should it prove to be defective in workman-

ship or material under normal use, for a

period of two years from the date of

purchase by the dealer as indicated by the

date code marking of the product

PROVIDED the product was installed by an

authorized Directed dealer. During this two -

year period, there will be no charge for this

replacement PROVIDED the unit is returned

to Directed, shipping pre-paid. If the unit is

installed by anyone other than an autho-

rized Directed dealer, the warranty period

will be one year from the date of purchase

by the dealer as indicated by the date code

marking of the product. During this one-year

period there will be no charge for this

replacement PROVIDED the unit is returned

to Directed, shipping pre-paid. This warranty

is non-transferable and does not apply to

any unit that has been modified or used in a

manner contrary to its intended purpose,

and does not cover damage to the unit

caused by installation or removal of the unit.

This warranty is void if the product has been

damaged by accident or unreasonable use,

neglect, improper service or other causes

not arising out of defects in materials or

construction. ALL WARRANTIES INCLUDING

BUT NOT LIMITED TO EXPRESS

WARRANTY, IMPLIED WARRANTY,

WARRANTY OF MERCHANTABILITY,

FITNESS FOR PARTICULAR PURPOSE, AND

WARRANTY OF NON-INFRINGEMENT OF

INTELLECTUAL PROPERTY ARE EXPRESSLY

EXCLUDED TO THE MAXIMUM EXTENT

ALLOWED BY LAW, AND DIRECTED

NEITHER ASSUMES NOR AUTHORIZES

ANY PERSON TO ASSUME FOR IT ANY

LIABILITY IN CONNECTION WITH THE

SALE OF THE PRODUCT. DIRECTED HAS

ABSOLUTELY NO LIABILITY FOR ANY AND

ALL ACTS OF THIRD PARTIES INCLUDING

ITS AUTHORIZED DEALERS OR

INSTALLERS. Unit must be returned to

Directed, postage pre-paid, with: consumer’s

name, telephone number, and address,

authorized dealer’s name and address, and

product description. IN ORDER FOR THIS

WARRANTY TO BE VALID, YOUR UNIT

MUST BE SHIPPED WITH PROOF OF

INSTALLATION BY AN AUTHORIZED

DIRECTED DEALER. ALL UNITS RECEIVED

BY DIRECTED FOR WARRANTY REPAIR

WITHOUT PROOF OF DIRECTED DEALER

INSTALLATION WILL BE COVERED BY THE

LIMITED ONE-YEAR PARTS AND LABOR

WARRANTY. Note: This warranty does not

cover labor costs for the removal and rein-

stallation of the unit. BY PURCHASING

THIS PRODUCT, THE CONSUMER AGREES

AND CONSENTS THAT ALL DISPUTES

BETWEEN THE CONSUMER AND Directed

SHALL BE RESOLVED IN ACCORDANCE

WITH CALIFORNIA LAWS IN SAN DIEGO

COUNTY, CALIFORNIA.

FEATURES

„ Super-efficient Class D PWM design

runs much cooler than conventional

amps.

„ Remote subwoofer level control

function.

„ Variable input sensitivity optimizes

„ High-speed MOSFET switching

match with different signal sources.

power supply.

„ Chrome-plated wire terminals and

RCA connectors ensure maximum

signal transfer.

„ High-current complimentary Class D

MOSFET outputs stable into one

ohm loads.

„ Rugged 2-piece heatsink and cover.

„ Thermal, DC offset, reverse polarity,

and short circuit protection with

status LED.

„ Unity gain pass-through RCA jacks.

„ Programmable features controlled

via ESP^®serial databus and

Directed's proprietary Bitwriter^®

tool (998T). The Bitwriter^®unit

„ Master/slave function supports two

amps bridged to one load.

must have version 2.0 or above

fully access the amplifier features

„ Continuously variable 12dB/

octave low-pass crossover.

menu.

„ Switchable subsonic filter,

24dB/octave .

„ ESP^®port for connection to ESP-2

Security components and current-

Bitwriter^®module with program-

ming.

„ Switchable 8 dB bass EQ function.

„ Switchable 180° phase inversion.

WARNING

High-powered car audio

systems may produce

sound pressure levels that exceed the

threshold at which hearing loss may

result.

They may also impair a driver’s ability to

hear traffic sounds or emergency vehi-

cles. Use common sense and practice

safe listening habits when listening to or

adjusting your audio system.

VEHICLE SERVICING NOTE

Prior to servicing

that the alarm system is

to the amplifier’s anti-theft feature (if

enabled), amplifier operation is disabled

when the main power to the amplifier is

removed while the alarm is armed. The

your vehicle ensure

amplifier operation must then be reset.

If the alarm is replaced with another

ESP2 alarm system, ensure that the

amplifier goes through a learn routine

(using the Bitwriter^®) prior to reen-

abling the anti-theft feature.

disarmed

. Due

INSTALLATION GUIDELINES

1. Please read this owner’s manual

carefully before installing this ampli-

fier.

6. The amplifier should be grounded

with a short, heavy gauge wire

connected directly to the car at a

bare metal surface, preferably

scraped body sheet metal. Do not

use factory ground locations, seat

bolts, or brackets that are spot

welded.

2. Disconnect the battery ground

terminal prior to making any elec-

trical connections.

3. Check for any hazards or obstruc-

tions such as gas tanks, fuel or

brake lines, and wiring harnesses

before mounting the amplifier.

7. Always fuse your power connection

within 8 to 10 inches of the battery

terminal. Use a fuse or circuit

breaker rated slightly more than the

on-board fuse(s) of the

amplifier(s). The gauge of power

wire used should take into account

the total current draw of the

system, and the length of wire

used. IASCA and other auto sound

competition organizations have

charts available for this; you can

also find a chart in the MECP study

4. Pick a mounting location that will

provide adequate access and venti-

lation and protect the amplifier

from heat, moisture, and dirt.

5. Avoid sharp metal areas when

routing cables to the amplifier, and

run RCA cables away from the

power cables and other potentially

noisy car harnesses.

guide. Minimum wire gauge recom-

mendations for the individual ampli-

fiers are listed on the specification

page. Always use the same gauge

wire for the amplifier ground that

you use for the power wire. Be sure

to examine the battery ground

cable of the vehicle, and if neces-

sary, upgrade it by adding an addi-

tional ground wire that is the same

gauge as the amplifier’s power

wire. Remember, the amplifier can

only deliver its rated output when it

is not current limited by the power

and ground supply wires.

ventilation installations, an external

cooling fan may be advisable.

9. Battery and ground connections to

the vehicle should be made with

crimped ring terminals of the appro-

priate size (surface area is what

counts); soldering the terminals

after crimping is also recom-

mended.

10. Due to the high-frequency MOSFET

switching power supply, filtering the

power cable is not generally

required (remember that the amp

can’t deliver full output if the power

supply is restricted). Proper

grounding of the signal source is

mandatory for the amplifier to

reach its performance peak. If the

RCA inputs are not grounded

adequately via the signal source,

electrical noise from the vehicle

may be picked up in the system.

8. This amplifier is designed to drive a

speaker load that measures from 1

to 4 ohms. Keep in mind that heat

is the long-term enemy of automo-

tive electronics and the lower your

speaker load, the more heat is

generated. For low impedance

speaker applications or restricted

FRONT PANEL CONNECTIONS/CONTROLS

RCA Input Jacks -

Accepts line level

tion for ease of adjustment during

listening.

outputs from head units or signal

processors at voltages between

150mV and 7.5 volts.

Warning: DO NOT connect a level control knob from other

manufacturers to the Remote Sub Level Control of

any Directed amplifier. Even though the connectors

fit properly, the control knob and connector pin

positions may be different and the amplifier will be

damaged.

RCA Line Output Jacks -

These pass

through RCA jacks can be used to

send the input signal to a second

amplifier.

LPF Control -

Controls low pass filter

cutoff from 30Hz to 250Hz.

Slave/Master Switch

- Controls

Phase Switch -

0° or 180° selec-

whether the amplifier is a slave or

master when connected in

combined amplifier configurations.

(Refer to the Combined Amplifiers

section of this guide.)

table for switching the phase output

to the woofer.

LED/FAN Connector -

10.

11.

Allows connec-

optional

cooling fan for the amplifier.

tion of an

optional

LED light bar or

Gain Control -

Controls the ampli-

fier’s sensitivity and is used to

match the input level of the ampli-

fier to the output level of the signal

source.

Status LED

- Will illuminate GREEN

to indicate the amplifier is on and

operating normally, and will be illu-

minated RED if the amplifier shuts

down due to short circuit, DC offset,

or overheating detected by on-

board protection circuitry.

Subsonic Switch -

attenuates frequencies below 30Hz

by 24dB per octave.

The subsonic filter

ESP^®Port -

12.

13.

connection port for

Bitwriter^®or ESP2 security system.

Bass EQ Switch -

boost to the subwoofer when

selected.

Adds 8dB of bass

ESP^®Status LED -

indicates ESP

functionality and is used to diagnose

Remote

- Controls the subwoofer

ESP^®features.

amplifier gain, from a remote loca-

FIGURE 1—AMPLIFIER CONNECTIONS/CONTROLS D1200/D2400 FRONT

D1200/D2400

12 13

FIGURE 2—LED/FAN HARNESS

BLACK

TO LEDs

TO FAN

BLUE

BLACK

RED

REAR PANEL CONNECTIONS

Fuses -

These fuses protect the

of the vehicle, using the shortest

wire necessary to make this

connection. Always use wire of the

same gauge or larger than the (+)

12 volt power wire. The chassis

connection point should be scraped

free of paint and dirt. Use only

quality crimped and/or soldered

connectors at both ends of this

wire. DO NOT connect this terminal

directly to the vehicle battery

ground terminal or any other

factory ground points.

amplifier against internal electrical

damage and are meant to protect

the amplifier only. All other power

connections should be fused at the

source.

The D1200 uses 2-30A fuses, and

the D2400 uses 3-40A fuses.

(+) 12 Volt Power

- Connect this

terminal through a FUSE or CIRCUIT

BREAKER to the positive terminal of

the vehicle battery or the positive

terminal of an isolated audio

system battery.

Speaker Terminals

- Connect

subwoofers to these terminals.

(Refer to the Speaker Wiring

Diagrams section of this guide.)

WARNING: Always protect this power wire by installing a fuse

or circuit breaker of the appropriate size within

12 inches of the battery terminal connection.

Remote Turn On

- This terminal turns

on the amplifier when (+) 12 volt is

applied to it. Connect it to the remote

turn on lead of the head unit or signal

source.

Ground -

Connect this terminal

directly to the sheet metal chassis

FIGURE 2—AMPLIFIER CONNECTIONS - REAR

D1200

D2400

FUSE 40A x 3

ESP FEATURES AND CONTROLS

These amplifiers incorporate an on-board

Directed ESP^®Engine. In addition to

allowing menu-driven parameter adjust-

ment*, operate with security products

from Directed Electronics to incorporate

Simply repeat the TX ID Learn

procedure for each amplifier. When

completed use a Y-cable to connect

the Alarm signals to both ampli-

fiers.

advanced ESP2 features. Your dealer

can use a Bitwriter^®with Firmware

version 2.0 or later to access these

parameters.

Note:

Prior to using the anti-theft or

valet features it is recommended

that the alarm be installed and its

functionality verified. Please consult

the install or operations guide for

the appropriate alarm.

The ESP^®features are

* Note:

obtained by using Bitwriter^®and a

3 pin ESP^®cable. While a

Bitwriter^®can only talk to one

ESP^®/ESP2 device at a time,

multiple amplifiers can be set to

respond to Arm/Disarm commands.

For the Bitwriter^®to Amp connection,

the cable must have the same color

sequence at both ends of the cable. For

the Alarm to Amplifier, the Transmit and

Receive wires must cross from one end

to the other.

Status indicator will not flash.

Bitwriter^®commands can control para-

meters such as Turn on Delay, Fan

Control, Input Gain adjustment, and also

place the amplifier into a monitoring

state for commands from an ESP2

equipped alarm.

- RESERVED - no function, reserved

for future use.

- CLEAR LAST FAULT -

Clears the last

fault. Note that this allows you to

see previous faults prior by back-

stepping one at a time through the

fault history.

Turn-On Delay -

0.75, 1.00, 1.25,

1.75, 2.25, 2.75, or 3.25

seconds. 1.75 seconds is the

factory default setting.

Input Gain Range -

The sensitivity

on the gain control can be limited

to specific ranges. The DEFAULT

position allows adjustment over the

full range of amplifier sensitivities.

There are 4 other ranges 0.5-1.0V,

1.0V-2.0V, 2.0-4.0V, 4.0-8.0V.

Fan Control - AUTO -

The fan will

automatically turn on when the

internal temperature exceeds

approximately 40 deg C. The ON

option causes the fan to operate

whenever the Amplifier is on. Use

the ON option if you are using the

external FAN port to drive optional

LED tubes. In the OFF mode the

external FAN port is disabled.

Input Gain Adjustment -

In the LOCK

position, the gain range and gain

control can be locked out to prevent

accidental mis-adjustment. The

Default mode is UNLOCKED.

Valet -

Selecting ENABLE allows the

Service Code Display -

The Directed

amplifier to monitor valet signals

from the alarm system. The ampli-

fier will not power up once remote

power is removed when the Valet

monitoring mode is ENABLED and

the alarm system has been set into

Valet mode.

ESP^®Engine stores up to seven

previous faults for later replay. The

Service Code Display allows the

installer to step through the fault

history.

- OFF -

In the OFF position, the

amplifier operates normally.

Note:

To make use of the Anti-theft

or Valet features, the amplifier must

"learn" which transmitters are asso-

ciated with the currently used alarm

system. See item 8 below.

- FLASH CODE ON LED -

the last

recorded fault is "replayed" on the

ESP^®Indicator LED. If the unit has

never recorded a fault, the ESP^®

If selected while the remote power

is on, the amplifier will continue

playing until the remote power is

turned off.

normally after the Turn On Delay

expires.

Top Light Options -

i. Light On W/Service Code

ii. Light Off W/O Service Code

iii. Light On, W/O Service Code

iv. Light Off, W/Service Code

To Clear Valet Mode, Disable Valet

mode on the alarm, then cycle the

remote power line off then on

again. The amplifier will power up

normally after the Turn On Delay

time has expired.

Default is Light On, W/O Service Code

The amplifier contains the ability to

control the lights on top of the unit

behind the logo badge. In addition

to custom tailoring many other

features, your Directed Dealer can

use a Bitwriter^®(V2.0 or later) to

setup the top light so that it is

either on or off when the amplifier

is on or off. In addition, the top

light can indicate when the ampli-

fier is in any of the fault shutdown

modes, or can display the service

code when this is being accessed.

Anti-theft -

Selecting ON, allows the

amplifier to monitor Arm and

Disarm signals from the alarm,

rendering the amp in-operable if

stolen. When OFF, these signals are

ignored. OFF is the factory default

setting.

When main power is removed while

the unit is armed, the unit is placed

into a "stolen state". The ESP^®

Status indicator will blink rapidly,

and the amplifier will not continue

its power up sequence. Also when

there is currently an ARM signal

active on the bus, the amplifier

cannot be written to by the

Bitwriter^®.

i. This option has the top light lit

when the unit is on(remote line

on), and indicates service codes

and faults on the top light.

ii. This option has the top light unlit

when the unit is on, and doesn’t

indicate service codes or faults on

the top light.

To reactivate the amplifier, connect

the alarm that was used to arm the

amplifier, and press the disarm

button. Ensure the remote line is

off(turn it off if this is not the

case), and then turn the amplifier

on. The amplifier should power up

iii. This option has the top light lit,

but does not indicate service codes

or faults on the top light.

iv. This option has the top light

unlit, but still indicates service

codes or faults using the top light.

until the ON appears.

3. Press the write key twice. The ESP^®

status indicator should begin

blinking.

Learn TX IDs

Default Off.

Before the unit will

Note:

respond to Arm/Disarm/Valet

Commands from the alarm system,

it needs to establish communica-

tions with this alarm system. This is

established using the learn routine

procedure described below. Once

this procedure is performed, the

unit will store this information

permanently in memory. The proce-

dure only needs to be repeated if

the alarm unit is replaced or all the

transmitters in an alarm system are

replaced.

The following should be

accomplished within 20 seconds or

the learn session will time out. If

this occurs, the LED will stop

blinking. Reconnect the Bitwriter^®

and press WRITE twice to re-enter

the TX ID Learn mode.

4. Disconnect the Bitwriter^®and

connect the Amp to the alarm

cable.

5. Press ARM on any transmitter

attached to the alarm system. The

LED should go on if the amplifier

was on prior to TX ID or go out if

the amplifier is off.

Major Version Number:

10.

11.

This number

will allow verification of the

firmware installed in the amplifier.

This will be useful information

should your amplifier ever need

service.

Note:

When the amplifier receives

ESP^®bus activity(typically either

arm or disarm signals, it will blink

to indicate Arm or Disarm

commands. This allows the installer

to verify that the proper cable is in

use and that the transmitters have

been properly programmed. The

unit must still be programmed to

respond to Valet and Arm

commands with a Bitwriter^®for the

Anti-theft/Valet modes to lock out

unauthorized operation.

Minor Version Number:

This number

references the minor version of your

amplifier firmware.

To perform a transmitter "learn":

1. Connect Bitwriter^®to amplifier.

Press READ on the Bitwriter^®.

2. Press the up arrow 3 times, or the

down arrow 8Light On, W/O

Service Code times to reach the

Learn TX IDs menu. Press 'Select'

ESP^®Status Indicator:

The ESP^®Status indicator flashes to

indicate the current operational

mode. This can be used in conjunc-

tion with the Power LED to help

determine the source of the

problem.

Power/Protection LED

ESP^®Status Indicator

Mode

Normal Operation

Turn On delay or TX learn

Thermal shutdown

Overcurrent

Green

Red

Off

Solid Red

Flashing

Flashing Slowly

Flashing Rapidly

Slow Flash (50% duty cycle) Overvoltage

Slow Flash (mostly off)

Off

Under-voltage

Amplifier Off

Off

Flashing

Arm/Valet received

Amplifier in Anti-theft/Valet

Amplifier armed

Off

Flashing Rapidly

Flashing

Note

: Remember that the Directed ESP Engine incorporates a digital gain control with

a finite number of adjustment steps (32). A very small adjustment may not cause

any audible changes in output. In addition the range selected may further restrict the

adjustment. Extremely quick, large changes may result in audible artifacts, particu-

larly on low frequency material as the gain is changing more rapidly than the source

electrical wave.

SPEAKER WIRING DIAGRAMS

Single subwoofer connection (top view)

Two subwoofer connection (top view)

NOTE:

The dual + and -- sub-out terminals of the D600/D800/D1200/D2400 are paralleled internally and the combined load

impedance should be taken into consideration when connecting multiple subwoofers.

COMBINING AMPLIFIERS

NOTE:

Remember that the Directed ESP^®amplifiers use a

digital gain control with a finite number of adjust-

ment steps. A very small adjustment may not cause

any audible change in level.

diagrams.)

NOTE:

One master amplifier can control up to three slave

amplifiers in this combination. Multiple identical

master/slave combinations can be added to any

given system.

The Directed D1200/D2400 subwoofer

amplifiers have the capability of

connecting two or more amplifiers of the

same power rating together in a

master/slave combination for increased

power with accurate level matching. They

are the Parallel Synced Gain and External

Synced Bridged combinations.

External Synced Bridged

In this master/slave combination the

master amplifier pre-amp controls remain

active and the slave amplifier pre-amp is

bypassed. This allows the master amplifier

to control gain, filter, and sub-level on both

amplifiers. This combination allows the

amplifiers to drive common subwoofer

loads while being synced together via an

out-of-phase audio pre-amp signal from the

master amplifier. In this subwoofer wiring

configuration the master amplifier sends the

positive signal to the subwoofer while the

slave amplifier sends the negative signal,

making an externally bridged speaker

connection. (Refer to External Synced

Bridged section of this guide for amplifier

and speaker connection diagrams.)

WARNING: DO NOT attempt to combine amplifiers of different

power ratings. These amplifier combinations work

correctly only if the Master and Slave amplifiers are

identical models.

Parallel Synced Gain

In this master/slave combination the

master amplifier pre-amp controls remain

active and the slave amplifier pre-amp is

bypassed. This allows the master ampli-

fier to control gain, filter, and sub-level

on both amplifiers.

This combination allows the amplifiers to

drive their own separate subwoofer(s)

while being synced together via an in-

phase audio pre-amp signal from the

master amplifier. Wiring connections to

the amplifier subwoofer outputs in this

combination should be standard in-phase

configurations, creating a parallel

speaker connection. (Refer to Parallel

Synced Gain section of this guide for

amplifier and speaker connection

NOTE:

Amplifiers in this combination can only be connected

in matched pairs. Multiple matched pairs may be

added to drive separate subwoofer loads in a given

system.

Combined Amplifiers Gain

and Filter Settings

NOTE:

You MUST set the Subsonic, EQ, and other filter

settings on the master amplifier to the same posi-

tions to achieve safe, optimal results. Adjustment

guidelines are discussed in the Crossover and Gain

Adjustment section of this guide.

PARALLEL SYNCED GAIN CONNECTIONS/SETTINGS

Refer to figure 5 for wiring details.

4. In order to achieve safe, optimal perfor-

mance, the LPF, Bass EQ, and Subsonic

Filter controls on all synced amps must

be set to the same position.

Input Signal

- Connect these RCA

jacks as described in the Front Panel

Connection section of this guide.

Signal Connection

- Connect an RCA

Slave/Master Switch

cable between the OUT RCA jack of

the master amplifier and the SLAVE

IN RCA jack of the slave amplifier as

shown in the Figure 5.

„

Set the slave/master switch

on the master amplifier to the

MASTER position.

Subwoofer Speaker Connection

- In

„

Set the slave/master switch

this amplifier combination each

amplifiers must drive its own sepa-

rate subwoofer(s). Connect the

speaker terminals of each amplifier

to any combination of one or more

subwoofers that results in nominal

impedance between one and four

ohms. Make sure that each amplifier

sees the same speaker impedance.

on the slave amplifier to the SLAVE

position.

„

Setting the slave/master

switch on both amplifiers will auto-

matically set the I/O RCA jack

configuration according to each

amplifier’s slave or master designa-

tion.

NOTE:

One master amplifier can control up to three slave

amplifiers in this combination. Multiple identical

master/slave combinations can be added to any

given system.

WARNING: The amplifier’s gain control is bypassed completely

in SLAVE mode. Do NOT move the MASTER/SLAVE

switch to SLAVE position when the amplifier is

connected and playing. Do NOT connect any signal

source to the amplifier in SLAVE mode that

exceeds 200mV.

Phase Switch -

Set the phase

switches of all synced amps to the

same position (all at 0° or all at

180°).

FIGURE 5—PARALLEL SYNC GAINED D1200/D2400

MASTER AMPLIFIER

PHASE

0° 180°

LINE OUT

INPUT

MASTER SLAVE

PHASE

0° 180°

INPUT

LINE OUT

MASTER SLAVE

SLAVE AMPLIFIER

Subwoofer Wiring (top view)

MASTER

SLAVE

NOTE:

The dual + and -- sub-out terminals are

paralleled internally and the combined

load impedance should be taken into

consideration when connecting multiple

subwoofers.

EXTERNAL SYNCED BRIDGED CONNECTIONS/SETTINGS

Input Signal

- Connect these RCA

synced amps must be set to the

same position.

jacks as described in the Front

Panel Connection section of this

guide.

Signal Connection

- Connect an RCA

cable between the OUT RCA jacks

of the Master amplifier and the

INPUT RCA jack of the Slave ampli-

fier as shown in Figure 6.

Slave/Master Switch

„

Set the slave/master switch

on the master amplifier to the

MASTER position.

Subwoofer Speaker Connection

- In

this amplifier combination the

Subwoofer speaker terminals of

both amplifiers drive common

subwoofer(s). Use the following

speaker connection diagram when

connecting the subwoofers to the

amplifiers. Connect the amplifiers

speaker terminals to any combina-

tion of one or more subwoofers that

results in a nominal impedance

between 2 and 4 ohms. DO NOT

connect loads of less than 2 ohms

when connecting to amplifiers in

the External Synced Bridged combi-

nation.

„

Set the slave/master switch

on the slave amplifier to the SLAVE

position.

„

Setting the slave/master

switch on both amplifiers will auto-

matically set the I/O RCA jack

configuration according to each

amplifiers slave or master designa-

tion.

NOTE:

Amplifiers in this combination can only be

connected in matched pairs. Multiple matched

pairs may be added to drive separate subwoofer

loads in a given system.

Phase Switch

- Set the phase

switches of all synced MASTER

amps to 0°. Set the phase switches

of all synced SLAVE amps to 180°.

The master and slave amps must be

set to the opposite phase mode in

order for External Synced Bridged

operation to work.

WARNING: Two wires of 12AWG minimum must be

connected between the negative sub out termi-

nals of the master and slave amplifiers.

WARNING: The amplifier’s gain control is bypassed

completely in SLAVE mode. Do NOT move the

MASTER/SLAVE switch to SLAVE position when

the amplifier is connected and playing. Do NOT

connect any signal source to the amplifier in

SLAVE mode that exceeds 200mV.

4. In order to achieve safe, optimal

performance, the LPF, Bass EQ, and

Subsonic Filter controls on all

FIGURE 5—EXTERNAL SYNCED BRIDGE

MASTER AMPLIFIER

PHASE

0° 180°

LINE OUT

INPUT

MASTER SLAVE

PHASE

0° 180°

INPUT

LINE OUT

MASTER SLAVE

SLAVE AMPLIFIER

Subwoofer Wiring (top view)

MASTER

SLAVE

MULTIPLE AMPLIFIER COMBINATIONS

Amplifier configuration

- Set up

The Directed D1200/D2400 subwoofer

amplifiers can also be used in multiples

of the master/slave combinations

allowing for unlimited expansion to a

systems subwoofer section. To use

multiples of amplifier combinations the

following directions must be adhered to

for best results.

„

each master/slave amplifier combi-

nation as described for the combi-

nation type being used. (Refer to

the Parallel Synced Gain or the

External Synced Bridged section of

this guide for amplifier and speaker

connection descriptions.)

Audio signal

„

- Divide the head unit

or processor audio signal to the

master amplifiers by using RCA Y

adapters. Be sure to divide them an

even number of times to ensure the

input level at each master amplifier

is matched.

CROSSOVER SETTINGS AND GAIN ADJUSTMENT

Your Directed Audio power amplifier needs to be adjusted carefully to achieve

maximum performance. These are some guidelines to follow when fine-tuning the

amplifier.

„ Because this amplifier is only designed for subwoofer applications, the low-pass

crossover is active at all times. The crossover point is adjustable to allow more

precise system operation.

„ Try and keep the setting low enough to prevent image smearing (you should not

be able to hear male voices from the subwoofer) but not so low as to create a gap

between the subwoofer and the mid-bass/midrange speakers. It will be to your

advantage to spend some extra time with this adjustment, listening to familiar

music or system set-up discs to achieve the kind of musical reproduction that you

prefer.

„ The gain adjustment allows you to set proper signal match for clean, quiet ampli-

fier operation. Start by playing some music you are familiar with. With the gain

adjustment on the amplifier in the middle of its rotation, bring up the volume on

your head unit to the 3/4 volume setting or until you start to hear distortion or

clipping. If you hear distortion before you reach the 3/4 volume setting of your

head unit, reduce the gain setting on the amplifier and start to raise the head unit

volume again. When you can listen to the music at or slightly above 3/4 on your

head unit without audible distortion, slowly raise the gain of the amplifier until

distortion is heard, then back off the gain until the distortion is not audible. This

setting will allow you to reach full output with all but the quietest of source mate-

rial, while avoiding excessive noise in the system.

„ For systems using the Remote Sub Level Adjustment, increase the subwoofer gain

on the amplifier by 25% and set the Remote Sub Level knob to the center position

after making all system gain and filter adjustments. This will give the Remote Sub

Level Control a wider range of adjustment to the subwoofer output.

„ You should take into consideration the effect that gain adjustment has on system

frequency response and staging. Again, plan on spending some time with music

that you know getting the gain and crossover settings the way you like. Test discs

and analyzers may help with this process, but in the end it's your ears that count

--listen to the music!

LED TUBE INSTALLATION (OPTIONAL)

This Directed Audio amplifier has been designed with a custom heat sink that can

accommodate two (optional—not supplied) VARAD LED tubes.

1. Before installing the LED tubes, remove and discard the mounting feet from the

VARAD LED tubes.

2. Slide each LED tube assembly into your Directed Audio amplifier heat sink. Ensure

that the LEDs are facing out for optimal visibility. The wires from the LED tube

assembly should be on the signal input end of the amplifier. The Black wire from

the LED tube is ground and the Black/White wire from the LED tube is power.

4. Run the two wires from the tube assembly and connect them to the 4-pin

LED/FAN input connector. Refer to the LED/FAN harness diagram given earlier in

this manual.

NOTE:

If the optional fan IS NOT being used, it is recommended that the second LED tube be wired to this circuit. If the optional

fan is being used, it is recommended that the second LED tube be wired in parallel with the first LED tube.

Use the following cross reference chart to select the proper length VARAD LED tube for

use with your Directed Audio amplifier.

Directed Amplifier—VARAD Cross Reference Chart

Directed Part Number

Directed Model

VARAD Model

QTY Required

45105

45110

D1200

D2400

HLX6, HL6

HLX12, HL12

CEA SPECIFICATIONS

D1200

Power Output: 300 Watts RMS x 1 at 4 ohms and < 1% THD+N

Signal to Noise Ratio: -60 dBA (reference 1 Watt into 4 ohms)

Additional Power: 600 Watts RMS x 1 at 1 ohm and < 1% THD+N

D2400

Power Output: 400 Watts RMS x 1 at 4 ohms and < 1% THD+N

Signal to Noise Ratio: -60 dBA (reference 1 Watt into 4 ohms)

Additional Power: 1200 Watts RMS x 1 at 1 ohm and < 1% THD+N

SPECIFICATIONS

D1200

1200W

400W

D2400

2400W

800W

Maximum Watts

RMS continuous Power¹

RMS continuous Power²

Frequency Response

Damping Factor

600W

1200W

20-250Hz

Variable Low Pass Crossover

12dB slope

30-250Hz

Subsonic Filter

Bass Boost

Yes

Input Impedance

Input Sensitivity

Output Load

20K

150mV/7.5V

1 ohms

2 x 30A

Yes

150mV/7.5V

1 ohms

3 x 40A

Yes

Fusing

Illuminated LED Driver

External Fan Driver

Pass Through RCA Jacks

Yes

1. RMS continuous power driven into 2 ohms from 20 to 250Hz @ 14.4VDC with less

than 1% THD+N.

2. RMS continuous power driven into 1 ohms from 20 to 250Hz @ 14.4VDC with less

than 1% THD+N.

The company behind this system is Directed Electronics, Inc. Since

its inception, Directed has had one purpose, to provide customers with the finest

vehicle security, car stereo products, rear seat entertainment, and accessories avail-

able. The recipient of more than 20 patents in the field of advanced electronic tech-

nology, Directed is ISO 9001 registered.

Directed Electronics, Inc.

Vista, California 92081

www.directed.com

Directed® is committed to delivering world-class quality

products and services that excite and delight our customers.

Quality Directed products are sold and serviced throughout North America and around the world

Call 800 274 0200 for more information about our products and services

Black Decker SB3000 User Manual
Breville IKON BBL600XL User Manual
Bush BR20DAB User Manual
Bushnell ImageView 118331 User Manual
Canon ELPH110HSBLUE User Manual
Canon PICTBRIDGE DC220 User Manual
Carson SA 441 83FX User Manual
Dodge 118127X User Manual
Dual SXSERIES SX652 User Manual
JVC Camcorder GR DVL815 User Manual