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PowerBass ALC-4 User Manual
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PowerBass ALC-4 User Manual

4-channel line output converter
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ALC-4
4-Channel LINE OUTPUT CONVERTER
User's Manual
Please read through this manual to familiarize yourself with your new signal processor. Should your PowerBass AutoSound
line output converter ever require service, you will need to have the original dated receipt.

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Summary of Contents for PowerBass ALC-4

  • Page 1 ALC-4 4-Channel LINE OUTPUT CONVERTER User’s Manual Please read through this manual to familiarize yourself with your new signal processor. Should your PowerBass AutoSound line output converter ever require service, you will need to have the original dated receipt.
  • Page 2 170 dB. Please observe all local sound ordinances while listening to your PowerBass Autosound system. PowerBass USA, Inc. accepts no liability for hearing loss, bodily injury, or property damage due to the result of use or...
  • Page 3 RCA Low Level Output: Tiffany style RCA jacks for maximum signal transfer. 13Vrms Output: As a line driver the ALC-4 can boost the output voltage of the radio (head unit) up to 13 volts before delivering it to the amplifier inputs.

  • Page 4: Control Panel Layout

    CONTROL PANEL LAYOUT 1. REAR REMOTE LEVEL Port This is the connector port for the included Remote Level Control. You can use this to remotely adjust the secondary gain of the Rear Output up to 18 dB at 45 Hz. 2.
  • Page 5 7. FRONT GAIN Control This control matches the input level of your ALC-4 with the front output level of your source unit. 8. REAR GAIN Control This control matches the input level of your ALC-4 with the rear output level of your source unit.

  • Page 6: Set-Up Adjustment

    MOUNTING THE LINE OUTPUT CONVERTER Fig.1 There are two basic mounting options for your PowerBass Line Output Converter. One is to mount the unit using the supplied brackets as shown in Fig 1. Once attached, you may use the brackets as a template and mark the two screw locations with a felt tip pen.
  • Page 7 REM OUT (Remote Out) The ALC-4 is equipped with a signal sensing circuit that can detect a signal on its input to provide a +12 volt output signal to turn on an aftermarket amplifier. Prepare the remote-out turn on wire for attachment to the power plug the same way you did for the power and ground.
  • Page 8 Choose the correct length and style of RCA interconnects for your needs (not included). Run the RCA cables from the amplifier to the location of the PowerBass ALC-4. Make sure all the RCA cables are run on the op- posite side of the vehicle from where you ran the power cables to the amplifier(s). Hiss, engine noise, and fan noise can easily be picked up through the RCA cables if run incorrectly.
  • Page 9 SPEAKER OUTPUT CONFIGURATIONS 1. High Level (Speaker) Input from Factory Radio for Front and Rear...
  • Page 10 Once the modular connector is plugged into the REMOTE LEVEL CONTROL and the REMOTE LEVEL PORT on the ALC-4, you can adjust the output of the signal to the woofer. If your amplifier has its own Remote Level control or Bass Control do not use that plus the Remote Level control on the ALC-4. Instead just use the controller that came with the amplifier.
  • Page 11 Removed or altered serial numbers will void this warranty This manual is the exclusive property of PowerBass USA, Inc. Any reproduction of this manual, or use other than its inten- tions is strictly prohibited without the express consent of PowerBass USA, Inc. © Copyright 2014 PowerBass USA, Inc.