7. POWER-LED
The LED lights when the amplifier is switched on.
8. Remote Bass Level Control
When using the Remote Bass Level Control you have the ability to control the
level of the subs from the driver seat.
9. RCA audio-input
These RCA inputs are to be connected with your radio preamp RCA outputs.
Please use RCA cables made for car audio, otherwise there could be
disturbances. Keep these cables as short as possible. To avoid disturbances from
your car electronics, install the RCA cables not to close from existing car cables.
If your radio has only one preamp output please use a suitable Y-RCA adaptor. If
your radio has only speaker outputs you must use a HIGH-LOW-LEVEL adaptor.
10. GAIN
This regulator equalizes the sensitivity of the amplifier to match the radio-output
voltage. This regulator is not for volume adjustment! Use clear music and
increase the radio volume up to 75 %. Now turn the amplifier gain-regulator to
the right until the sound becomes unclear.
11. LOW PASS
Unwanted higher frequencies will be filtered with 12 db and the bass speaker will
only produce low frequencies and will sound clearer.
12. Subsonic frequency
This control adjust the filter frequency under which the subsonic decreases
the volume. We suggest to set it at the lowest audible frequency of the
speaker.
9
