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warranty. Mounting your amplifier inside an enclosure is not a good idea unless

the enclosure is equipped with ventilation fans to circulate fresh air through the

enclosure.

Your new D7 amplifier features adjustable mounting flanges. Should they need

to be moved to a different location, remove the self-tapping screws on the

bottom of each mounting flange. Move the flange to the desired location.

Carefully tighten the self-tapping bottom screws. Be careful not to overtighten

these screws or damage to the head of the screws or stripping of the threads

will result.

POWER/GROUND

D7 amplifiers need proper power and ground connections to deliver maximum

performance and efficiency. This is typically the least understood part of the

installation process. Voltage drops due to poor quality connections and/or poor

grounding practices will rob your audio system of power that could be used for

listening to music. These voltage drops will create increased current draw and

will make it easier for noise to enter your system.

Your new amplifier has a fully regulated power supply. It is designed to make

full power even if the voltage changes. It will draw more current at lower

voltages to make that power. Try to ground your system to a single point in

the vehicle.

The gauge of the power and ground cables must be capable of handling the

current needed by the entire system. Power and ground cables must be of the

same gauge. If the alternator is not capable of supplying enough power for

both the vehicle AND the audio system, a high output alternator should be

installed for best performance.

POWER (+12V)

Strip approximately 1/2 inch of insulation from the end of the power cable

going to the amplifier. Insert the stripped cable into the power block on the

end of the amplifier and tighten the Allen screw. A ring terminal may also be

used directly at the power block. Repeat for each amplifier installed.

GROUND

For low power systems, locate a fairly thick metal area near the amplifier(s).

Inspect around and under the chosen area to make sure you won't drill into

wires, brake or fuel lines, computers, etc. Remove any paint and carpet glue to

a spot approximately 1 inch in diameter. Drill a hole into the middle of this

area. Cut a length of ground cable long enough to go from the ground point to

the amplifier. Terminate the ground cable with a ring connector and attach it

SYSTEM DIAGRAM 1

Basic Biamp System:

Dual 2 Channel Amplifiers

D7 two channel amplifier

Source: Front RCA outputs

Channels 1/2 Highpass to a pair

of components

D7 two channel amplifier

Source: Rear outputs

Channels 1/2 Lowpass to a

bridged 4 Ohm subwoofer