4-Channel High-to-Low Converter RF-HLC4

Three Quarter Beauty Shot of High-to-Low Converter
Speaker Level Input Side View of High-to-Low Converter
RCA Level Output Side View of High-to-Low Converter

4-Channel High-to-Low Converter RF-HLC4

Use the RF-HLC4 high-to-low signal converter to connect 4-channel amplifiers to radios without RCA outputs.

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The RF-HLC4 is a 4-channel high-level to low-level signal converter designed for factory or aftermarket radios that do not have dedicated low-level RCA outputs.  The adapter converts high-level signal from the radio's speaker line and transforms it into a safer low-level audio signal.  This allows you to add a 4-channel amplifier to your system for higher power output and better sound quality.


  • 4-Channel
  • RCA Level Output
  • Speaker Level Input
  • 1 Year Warranty
Signal Input
Front Left & Right +/- leads
Rear Left & Right +/- leads
Front & Rear ground leads
1" x 3" x 3-1/2"
(2.54cm x 7.62cm x 8.89cm)
Line Output Converter
Signal Output
Front Left & Right RCA jacks
Rear Left & Right RCA jacks
Input Voltage
Up to 10.5V (high-level)
Output Voltage
Up to 3V (low-level)
Behind dash
Input Impedance
Output Impedance
Processor Type
Analog Processor

Return Authorization

Contact the Authorized Rockford Fosgate Dealer you purchased this product from. If you need further assistance, call 1-800-669-9899 for Rockford Customer Service. You must obtain an RA# (Return Authorization number) to return any product to Rockford Fosgate. You are responsible for shipment of product to Rockford.


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