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Rockford Fosgate® 4-Channel High-to-Low Converter

Model #: RF-HLC4
Rockford Fosgate
At a Glance
Use the RF-HLC4 high-to-low signal converter to connect 4-channel amplifiers to radios without RCA outputs.
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$99,999.00Save $NaN

Get to know this product.

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
Useful Documents


ConfigurationLine Output Converter
Processor TypeAnalog Processor
Signal InputFront Left & Right +/- leads, Rear Left & Right +/- leads, Front & Rear ground leads
MountingBehind dash
Signal OutputFront Left & Right RCA jacks, Rear Left & Right RCA jacks
Input VoltageUp to 10.5V (high-level)
Output VoltageUp to 3V (low-level)
Dimensions1" x 3" x 3-1/2" (2.54cm x 7.62cm x 8.89cm)

Misc. Specs

Manufacturer Warranty1 Year
WarningProposition 65 Warning for California Residents