9. Level A - front
10. LOW PASS A - front
Unwanted higher frequencies will be filtered with 12 db and the frontspeaker will only
produce low frequencies and will sound clearer.
11. Level B - rear
12. LOW PASS B - rear
Unwanted higher frequencies will be filtered with 12 db and the rearspeaker will only
produce low frequencies and will sound clearer.
13. PROTECTION-LED
This LED lights up in case of any malfunction or internal damages. It also indicates
over-heat or if low voltage protection is activated.
14. POWER-LED
This LED lights when the amplifier is switched on.
15. Remote Bass Level Control (optional)
When using the Remote Bass Level Control you have the ability to control the level of
the subs from the driver seat.
16. Woofer Signal
If your radio has no subwoofer output please push button 16 to send the signal to the
subwoofer channel internally.
18. Subsonic frequency
This control (18) cuts off unwanted low frequencies below the setted position.
We suggest to set it at the lowest audible frequency of the speaker.
This regulator (9) 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.
This regulator (11) 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.
17. Woofer Level
This regulator (17) 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.
19. LOW PASS Filter
Unwanted higher frequencies will be filtered with 12 db and the woofer will only
produce low frequencies and will sound clearer.
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