A5800; Features And Operational Controls - Autotek A55800 Benutzerhandbuch

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The LINE INPUT RCA jacks must be connected with the RCA output jacks of the headunit.
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By connecting only the CH1/2and CH3/4 jacks, the MODE switch must be set to the 4CH position.
The LEVEL CH1/2, CH3/4 and CH5 controllers adjust the input sensitivity of the amplifier to align the audio signal of the head
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unit for the regarding channel pair (Channel 1/2, 3/4 or 5). The input sensitivity is adjustable from 5 to 0.2 Volts.
The CH1/2 and CH3/4 X-OVER switch selects the required operation mode of the amplifier on the regarding channel pair
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(Channel 1/2 or Channel 3/4).
Position HPF: Highpass mode (The higher frequencies will be eliminated. Adjustable by the HIGH PASS highpass controller.)
Position FULL: Fullrange mode (The whole frequencies will be amplified).
The HIGH PASS CH1/2 and CH3/4 controllers adjust the cut-off point of the frequency range to below for the regarding channel
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pair (Channel 1/2 or Channel 3/4). The cut-off frequency is continuously adjustable from 10 Hz to 150 Hz .
The SUB SONIC controller (Subsonicfilter) limits the ultralow and not hearable frequencies of the audiosignal on the subwoofer
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channel (5CH) to below, to avoid a mechanical and electical overloading on the subwoofer. The cut-off frequency is adjustable
from 15 to 55 Hz and depends on the size of the subwoofer.
The MODE switch must be in 4CH position, if you connect only two RCA stereo audio cables with the CH1/2 and CH3/4 line
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inputs. Select the position 5CH, if you connect three RCA stereo audio cables with CH1/2, CH3/4 and CH5 line inputs.
Therefor the additional available subwoofer lineout (SUB OUT) of your headunit on input CH5 is recommended.
If you select the 4CH mode, the input signal of LINE INPUT CH1/2 and CH3/4 will be routed to the subwoofer channel CH5.
The subwoofer signal will be filtered out of the incoming signal. Due to this, only two RCA stereo audio cables are required and
no Y-Adaptors are required.
The BASS BOOST CH5 controller adjust the bass boost enhancement on the subwoofer channel (CH5) continuously from
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0dB to +12dB at 45 Hz.
The LOW PASS CH5 controller adjust the cut-off point of the frequency range for the subwoofer channel
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(Channel 5) to above. The cut-off frequency is continuously adjustable from 30 Hz to 150 Hz.
POWER/PROTECT (Also located on the Bass Remote unit)
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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. With this bass remote controller, you are able to
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adjust the bass level on the subwoofer channel (CH5) e.g. from the driver's seat. Please use only the enclosed bass remote
controller and cable.
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FUNCTIONS AND OPERATIONAL CONTROLS
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