© 2018 Stinger • www.stingerelectronics.com
Amplifier Owner’s Manual
RCA INPUT
Connect preamp signal cables from the source unit to RCA
inputs in harness.
RCA 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, 40Hz-400Hz
Low or High Pass.
LEVEL
Used to reach maximum amplifier power with a wide variety of signal
sources.
HI INPUT
Connect a factory system’s headunit or amplifier outputs, no LOC needed.
REMOTE LEVEL CONTROL w/MUTE (REMOTE)
This port is for connecting the optional remote level control. This allows up to
20dB of volume adjustment by turning or push to mute.
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.
Recommended fuse rating is 30 amperes.
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. PSX350.2 minimum impedance is
2 ohm stereo or 4 ohm mono.
INPUT CONFIGURATION
(SPX700.4 only)
CONFIG switch on front panel can be used to select either 2CH inputs
or 4CH inputs depending on your source unit capabilities. Select 2CH
if only 2 channels of signal are available, this helps avoid having to use
Y-connectors to drive 4 channels with only 2 channels of signal available.
SPX350X2
SPX700X4
2 Channel Power Amplifier
4 Channel Power Amplifier
SPX350x2
SPX350x2
SPX700x4
SPX700x4
