DPX1800 and DPX11500 stackable configurations
In
this mode, the master amp's front-panel controls apply to all amplifiers. For ex-
ample, setting the crossover frequency
on
the master sets it on all slaves. This works
for all front-panel controls.
Multiple amplifiers can be daisy-chained together. For example, if you had six
DPX1800s
in
a show car, you could control all of them from one master unit (and one
remote).
The following describes the configuration of the amplifiers:
Master
First slave
• Route input from the head into the normal mode inputs.
• Set the master/slave switch to Master.
• Route a single RCA cable from the Slave Out to first slave unit.
• Set the master/slave switch to Slave.
• Route a single RCA cable from the master Slave Out to the
current amplifier's Slave
In.
Additional
slave(s).
Set the master/slave switch to Slave.
• Route a single RCA cable from the previous amplifier's Slave
Out to the current amplifier's Slave
In.
Each amplifier can independently control separate speaker loads (assuming the
phase switch on all amplifiers is set the same).
Or, to power a large single load (phase switch opposite
on
the amplifier), you can
bridge across the amplifiers: + and + to load, - and - to each other. The master amp
is
"speaker +" for in-phase operation.
Any pair of amplifiers could also be bridged, but be careful to set the phase switches
correctly.
Setting the gain
After completing the installation, follow these steps to set the gain control and perform
the final system checks.
1.
Turn the gain control all the way down (counterclockwise).
2.
Select the proper input voltage range using the IVS. See "Selecting Input Voltage"
in
the "Operations" section of this manual.
3.
Turn the vehicle's ignition switch on.
4.
Turn the audio system
on
with the volume turned all the way down.
4.
Set all tone or equalization controls to flat positions and turn loudness off.
5.
Playa
CD and turn the volume up on the head unit until you hear distortion. This
should
be
most of the way up.
APXlDPX Amplifiers
19
DPX1800 and DPX11500 stackable configurations
In
this mode, the master amp's front-panel controls apply to all amplifiers. For ex-
ample, setting the crossover frequency
on
the master sets it on all slaves. This works
for all front-panel controls.
Multiple amplifiers can be daisy-chained together. For example, if you had six
DPX1800s
in
a show car, you could control all of them from one master unit (and one
remote).
The following describes the configuration of the amplifiers:
Master
First slave
• Route input from the head into the normal mode inputs.
• Set the master/slave switch to Master.
• Route a single RCA cable from the Slave Out to first slave unit.
• Set the master/slave switch to Slave.
• Route a single RCA cable from the master Slave Out to the
current amplifier's Slave
In.
Additional
slave(s).
Set the master/slave switch to Slave.
• Route a single RCA cable from the previous amplifier's Slave
Out to the current amplifier's Slave
In.
Each amplifier can independently control separate speaker loads (assuming the
phase switch on all amplifiers is set the same).
Or, to power a large single load (phase switch opposite
on
the amplifier), you can
bridge across the amplifiers: + and + to load, - and - to each other. The master amp
is
"speaker +" for in-phase operation.
Any pair of amplifiers could also be bridged, but be careful to set the phase switches
correctly.
Setting the gain
After completing the installation, follow these steps to set the gain control and perform
the final system checks.
1.
Turn the gain control all the way down (counterclockwise).
2.
Select the proper input voltage range using the IVS. See "Selecting Input Voltage"
in
the "Operations" section of this manual.
3.
Turn the vehicle's ignition switch on.
4.
Turn the audio system
on
with the volume turned all the way down.
4.
Set all tone or equalization controls to flat positions and turn loudness off.
5.
Playa
CD and turn the volume up on the head unit until you hear distortion. This
should
be
most of the way up.
APXlDPX Amplifiers
19
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