2. POWER/STATUS Indicator
This clear LED lights Blue when the power is on—or turns Red constantly when the built-in protection circuitry is activated. Red indicates a
problem with the system in relation to the amplifier (See Troubleshooting Tips).
3. GAIN Control
This control is used to match the input sensitivity of the amplifier to the particular source unit that you are using up to 250mV to 10 volts.
4. X-OVER Switch for LPF/FULL/HPF
Activates the built-in electronic crossover network. Works in conjunction with the LPF and HPF adjustable control. When set to FULL the
amplifier runs Full Range and the electronic crossover circuitry is bypassed.
5. HPF/LPF
This control is continuously adjustable from 40Hz to 400Hz at 12dB per octave when the X-OVER switch is set to LPF (Low Pass Filter) or
HPF (High Pass Filter).
6. BASS EQ Control
This equalization circuit is used to enhance the low frequency response of the vehicle’s interior. With up to 18dB of boost centered at 45Hz,
the BASS EQ can be adjusted to meet your own personal taste. This is only operational with LPF mode on.
7. SPEAKER OUTPUT
Be sure to observe the correct speaker polarity and follow the speaker wiring diagrams found elsewhere in this owners manual.
Grey Wire = Right +
Grey/Black Wire = Right -
White Wire = Left +
White/Black = Left -
8. POWER AND GROUND INPUT Wires (from left to right)
A. Red Wire BATT+ (Power Input Connection)
B. Blue Wire REM (Remote Turn-On Connection)
C. Black Wire GND (Ground Input Connection)
A. BATT+ (Power Input Connection)
This wire is the main power input for the amplifier and must be connected directly to the positive (+) terminal of the car battery.
B. REM (Remote Input Connection)
This wire must be connected to a switched +12V source. Typically, remote turn-on leads are provided at the source unit that will
turn on and off the amplifier in correspondence with the source. If this lead is not at the source unit, then a switched +12V supply
must be used, like the ACC, +12V.
C. GND (Ground Input Connection)
A good quality ground is required for your PowerBass Xtreme amplifier to operate at peak performance. A short length of cable the
same gauge as your power cable should be used to attach the ground directly to the chassis of the vehicle. Make sure that all of
the paint is sanded or scraped away to ensure a quality ground connection. NOTE: If installing in a boat, UTV or motorcycle
make sure your ground wire is connected to the negative ( - ) terminal of the battery.
FUSE-IMPORTANT
Due to the limited space on the XL amplifier chassis they do NOT come with internal fusing! Instead we have included an in-line fuse holder
that can be connected directly to the BATT+ input on the amplifier. Please note the proper ampere fuse for each model are listed below. Never
replace a fuse with a higher rating then what is listed.
XL-2305MX 60A
XL-4255MX 80A
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