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Connect the Amplifier to the Speakers. Use thicker speaker wires (e.g. 8 - 10 gauge desirable)
for these connections.
For Stereo Mode
1. Connect the front left negative ("–") speaker output of the amplifier to the negative terminal
of the left speaker.
2. Connect the front left positive ("+") speaker output of the amplifier to the positive terminal
of the left speaker.
3. Connect the front right ("–") speaker output of the amplifier to the negative terminal of
the right speaker.
4. Connect the front right ("+") speaker output of the amplifier to the positive terminal of the
right speaker.
5. Repeat the same for the rear channel speaker connections.
Figure 7: Stereo Connection
For Bridged (Mono) Mode
1. Connect the front left positive ("+") speaker output of the amplifier to the positive input
terminal of the speaker.
2. Connect the front right negative ("–") speaker output of the amplifier to the negative input
terminal of the speaker.
3. Repeat the same for the rear channel.
4. Make sure that ALL RCAs (front and rear left/right) are plugged in, other wise bass
response and output will suffer.
Figure 8: Bridged Single Woofer Connection
CAUTION: ANY DEVIATION FROM THE ABOVE SPEAKER CONNECTION MAY CAUSE
SERIOUS DAMAGE TO THE AMPLIFIER AND/OR SPEAKERS. PLEASE DOUBLE CHECK
THE CONNECTION BEFORE TURNING THE SYSTEM ON.
Connect the Amplifier to the Battery
Heavy gauge wire is preferred. Add a fuse or circuit breaker to any power wire that runs through
a firewall or sheet metal to protect the battery, the vehicle, and more importantly, you. It is highly
recommended that installation is carried out by an authorized Coustic dealer.
Connect the Amplifier Remote Control
Connect the remote input terminal of the amplifier to the remote output terminal of the source unit
to establish amplifier remote on/off through the power on/off of the source unit. If the source unit
does not provide a remote output, connect to its power antenna lead or other switched 12-volt
source, e.g. ignition switch.
Connect the Amplifier Ground to Vehicle Chassis
Find a good ground spot in the vehicle and connect the ground terminal of the amplifier to this
point via a large gauge ground cable.
Reconnect the Battery Ground to the Vehicle Chassis
Double check all the previous installation steps, in particular, the wiring and component connec-
tion. If everything is in order, complete the installation by reconnecting the battery ground to the
vehicle chassis.
Optional RS Remote Subwoofer Level Control (not available on 320QE)
If the optional remote subwoofer level control (model RS) is used, connect the plug of the RS to
the port on the end panel of the amplifier.
Figure 9: Remote Subwoofer Level Control (480QE only)
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+ L - + R -
BRIDGE
BRIDGE
+ L - + R -
FRONT
REAR
+ L - + R -
BRIDGE
BRIDGE
+ L - + R -
FRON
T
REAR
FRONT
REAR
REMOTE
SENS
MIN
MAX
MODE
HPF OFF LPF
FREQ
30
300
60
180
0
+18
BOOST
SENS
MIN
MAX
MODE
HPF OFF LPF
FREQ
30
300
60
180
0
+18
BOOST
T
REAR
N
PUTS