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INPUT COMBINE
Your multi-channel
DCX
amplifier can use both front and rear
outputs from your head unit to maintain the ability to fade front to
rear, or you can run a single set of RCAs to the front inputs and push
in the Rear Input INT/EXT switch on the amplifier endplate to route
the front signal to the rear channels as well.
ADJUSTING INPUT GAIN
1. Adjust all amplifier input gain controls to just above minimum
sensitivity (fully counterclockwise).
2. Using the cleanest music source (CD) playing, turn up the head
unit source volume until you can hear distortion. Now turn it down a
bit until you cannot hear the distortion (usually just below full
volume).
3. Increase the amplifier gain (clockwise) until the onset of audible
distortion. Then decrease the gain to the point just before the
distortion starts. This setting minimizes background noise and
prevents overload.
4. Repeat step 3 for any remaining independently controlled
amplifiers (rear and subwoofer gain controls) in the system.
HIGH MASS INTERNAL HEATSINK
The unique heatsink on your
DCX
amplifier has been designed with
fins on the inside of the aluminum extrusion. This allows for the
transfer of heat from the circuitry to the heatsink fins and out through
the vents in the endplates. Be sure you provide ample space around
the amplifier for cooling: at least 2” on all sides.
FORCED AIR THERMAL MANAGEMENT
To manage the additional heat associated with higher output
capability, a thermally controlled fan has been designed into the
DCX 1000.4
. When the heatsink temperature reaches a pre-
determined value, the fan is activated and cool air is drawn in
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