Amplifier Owner’s Manual
© 2010 Phoenix Gold • www.phoenixgold.com
INPUT
Connect preamp signal cables from the head unit to these terminals.
HIGH LEVEL INPUT
Connect a factory system’s headunit or amplifier outputs. Using the
HI level input the amplifier will automatically turn on and off using the
factory system’s audio signal as a trigger. The high level auto on switch
turns off the auto turn on function, but the high level input still works as
normal.
OUTPUT
Provides a full range signal for an additional amplifier. There is no signal
loss if using this output.
CROSSOVER FREQUENCY
Controls the crossover point for the speaker outputs.
BASS BOOST
Variable bass boost from 0 to +18dB @ 45 Hz.
2ch/4ch MODE
2ch: Headunit has one pair of cables into front Input.
4ch: Headunit has two pairs of cables into front and rear inputs.
LOW PASS LEVEL CONTROL (LPL)
This port is for connecting the optional remote level control (LPL44). This allows
up to 20dB of volume adjustment. This is not a bass boost, it controls the level of
the entire low pass signal of the rear channels.
REMOTE MONITORING DISPLAY (RMD)
Connect optional RMD Voltage Display to this port
LEVEL
Used to reach maximum amplifier power with a wide variety of headunits.
CONFIG
FLAT: Crossovers are turned off
HP: High pass crossover is on
LP: Low pass crossover is on
12V+
This must be connected to the fused positive terminal (+12V) of the
car’s battery. The fuse must be located within 18 inches of the battery.
REMOTE
This must be connected to sw12V, usually a trigger wire
coming from the head unit or ignition. This is not used if using Hi input
auto on feature.
GND
This must be connected to the negative terminal of the car’s battery or
bolted to a clean, unpainted part of the chassis of the vehicle.
SPEAKER OUTPUTS
Used to connect the amplifier to speakers. Use the left + and right - terminals for
bridged mode. Minimum impedance is 4 ohm bridged or 2 ohm stereo.
R500.4 - R300.4
4 Channel Power Amplifier
