DCX 300.4
FRONT PLATE DIAGRAM
1. Cooling Plenums: Maintain a minimum 2” clearance around
cooling plenums for proper amplifier cooling.
2. Rear Speaker Connector: Plug in the
PowerLock
TM
connector
here.
3. Front Speaker/Remote Connector: Plug in the
PowerLock
TM
connector here.
4.
QBASS
TM
Level Control: Controls bass boost, centered at 40Hz
with up to 18dB of boost.
5. -12dB Attenuation Switch: Push this switch ‘IN’ for high voltage
input (4V-12V) capability. This button must be pushed ‘IN’ for use
with speaker level input on common ground head-units or for high
voltage line drivers.
6. RCA Output: RCA outputs provide HP/LP/FULL 30-4kHz signal
to another amplifier.
7. Rear Inputs: Plug in the rear RCA leads from your source here.
8. Front Inputs: Plug in the front RCA leads from your source here.
9. Front Gain: Use this control to match the output level of the
source unit to the front channel of the amplifier.
10. Front Freq. Control: Move this detented control in a clockwise
direction to adjust the front crossover frequency from 30Hz to4 kHz.
(see Crossover Frequency chart in this manual).
11. Front HP/LP/FULL Switch: Select the desired crossover
setting. HP/LP/FULL for the speaker output signal of the front
channel.
12. Rear Input INT/EXT Switch: Select the INT position if you want
