Power & Ground (12Vdc); Turn-On (Remote) - Diamond D9 & TDX TECHNOLOGY Owner's Manual

Power & Ground (12VDC)
Because the D9 power supply is more dependent on current than voltage, greater
attention needs to be taken when installing power and ground connections.
These power supplies need an unrestricted flow of current. The proper valued ANL fuse
is recommended. Circuit breakers are ok too, but most AGU and Maxi fuses are not large
enough to handle the load.
The vehicles factory ground at the battery should be upgraded to 0 gauge, the same as
the amplifiers power and ground cable.
The amplifier ground must be sufficient to pass the same amount of current as the
power wire. Therefore, self tapping screws through 1/8" of sheet metal will not suffice. A
3/8" bolt, nut, and lock washer on a solid ground is recommended, typically on the floor
board. Remove any paint, glue or padding from the ground and use a ring terminal.
Capacitors - Capacitors can be very beneficial as they charge and discharge very
quickly while holding the voltage steady. But in systems with a lot of current draw, a
battery is a better choice due to its higher capacity for that current. Capacitors virtually
do nothing for D9 performance.
When using multiple D9 amplifiers, a high output alternator is definitely
recommended.
Strip approximately 1/2 inch of insulation from the end of the power/ground cable going
to the amplifier. Insert the stripped cable into the power block on the end of the amplifier
and tighten the Allen screw. Repeat for each amplifier installed.

Turn-on (Remote)

Locate the terminal labeled "REM" between the ground and +12V power connection
points on the end of the amplifier. Your source unit should have a wire in its harness
labeled "REMOTE" or "AMP TURN-ON." Some source units come equipped with a "Power
Antenna" lead only. This should also work. Run this wire from your source unit to the
amplifiers REM connection. Strip approximately 1/2Êinch of insulation from the wire.
Insert the wire into the terminal, and tighten the Allen screw. D9 amplifiers will accept
remote turn-on wire up to 10Êgauge or banana jacks directly.
©2005 Diamond Audio Technology. All Rights Reserved
8