5. REAR 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.
6. REAR 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).
NOTE: The XL-4165M has separate controls for HPF and LPF.
7. REAR 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.
8. FRONT 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.
9. AUX Input Jack
This 1/8-inch (3.5mm) mini jack can be used to accept an MP3, iPOD or smartphone as the source unit from that devices headphone
(3.5mm) output. When using AUX input, the amplifier must be in 2CH mode.
10. FRONT HPF
This control is continuously adjustable from 40Hz to 400Hz at 12dB per octave).
11. FRONT Low Level RCA and High Level Speaker Inputs
Use this Low Level 4-pin High/Low style input is where the wiring harness plugs in for the Low Level input that connects to source
units with RCA line level outputs. A source unit with a minimum input of 250mV is required for proper operation. However, this input
can accept levels up to 10Vrms.
12. 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 terminal 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.
13. REM (Remote Input Connection)
This terminal must be connected to a sw12V 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 sw12V supply
must be used, like the ACC, +12V.
14. BATT+ (Power Input Connection)
This terminal is the main power input for the amplifier and must be connected directly to the positive (+) terminal of the car battery.
The solderless terminal block is designed to accommodate up to 4-gauge power wire.
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-2205M uses 40A, XL-4165M uses 60A)
15. REAR SPEAKER OUTPUT / 16. FRONT SPEAKER OUTPUT
This 4-pin Molex style connector is where the speaker output harness plugs in. Be sure to observe the correct speaker polarity and
follow the speaker wiring diagrams found elsewhere in this owners manual.
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