Diamond Audio Technology D7401 Manuel d'installation - Page 7

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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.
PO WER/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
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SYSTEM DIAGRAM 1

Basic Biamp System:
2 Channel Amplifier
D7401 with Subwoofers
D7 two channel amplifier Highpass to a component set
D7401 Lowpass to a pair of 4 Ohm woofers
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