A1800; Features And Operational Controls - Autotek A1800 Benutzerhandbuch

1
POWER/PROTECT (Also located on the Bass Remote unit)
1
If the POWER LED lights up, the amplifier is ready for operation.
If the PROTECT LED lights up, a malfunction is indicated. Attend in this case the chapter TROUBLE SHOOTING.
The REMOTE port is for the cable of the enclosed bass remote controller and only to use in the LP/BP mode. With this bass
2
remote controller, you are able to adjust the bass level e.g. out of the driver's seat. Please use only the enclosed bass remote
controller and cable.
The BASS BOOST controller adjusts the bass boost enhancement continuously from 0dB to +12dB at 45 Hz.
3
The LOW PASS controller adjusts the cut-off point of the frequency range to above. The cut-off frequency is continuously
4
adjustable from 40 Hz to 150 Hz.
The X-OVER switch selects the required operation mode of the amplifier.
5
Position LP/BP: Lowpass mode (the higher frequencies will be eliminated. Adjustable by the LOWPASS controller.)
The HIGH PASS/SUB SONIC controller works in this operation mode as subsonicfilter and eliminates the lower frequencies
(Bandpass-Mode). NOTE: If this controller is turned to a higher value than the lowpass controller, no sound is hearable.
Position HP: Highpass mode (the higher frequencies will be eliminate. Adjustable by the HIGH PASS/SUB SONIC controller.)
Position FULL: Fullrange mode (the whole frequencies will be amplified).
The HIGH PASS/SUB SONIC controller adjusts in the HP Mode the cut-off point of the frequency range to below. The cut-off
6
frequency is continuously adjustable from 15 Hz to 55 Hz.
In the LP/BP Mode the HIGH PASS/SUB SONIC controller works as Subsonicfilter and limits the ultralow and not hearable
frequencies of the audiosignal to below, to avoid a mechanical and electrical overloading on the subwoofer. The cut-off frequency
is adjustable from 15 Hz to 55 Hz and depends on the size of the subwoofer.
The LEVEL controller adjusts the input sensitivity of the amplifier to align the audio signal from the head unit.
7
The input sensitivity is adjustable from 5 to 0.2 Volts.
The LINE OUTPUT RCA jacks provide a linear fullrange audiosignal to supply an additional amplifier.
8
The LINE INPUT RCA jacks must be connected with the RCA output jacks of the headunit.
9
A 1 8 0 0
FUNCTIONS AND OPERATIONAL CONTROLS
2 3 4 5 6 7
1 7
8 9