Rockford Fosgate ® | Premium Audio Systems & Accessories

4-Channel High-to-Low Converter

4-Channel High-to-Low Converter - Main image
4-Channel High-to-Low Converter4-Channel High-to-Low Converter
$55 $109.99 In stock

Category: Products

The Rockford Fosgate RF-HLC4 high-to-low signal converter lets you connect 4-channel amplifiers to factory or aftermarket radios that lack RCA outputs. This compact device is designed for straightforward integration, helping you add amplifier power to your audio system without replacing your existing head unit.

  • Converts speaker-level signals to preamp-level RCA outputs for 4-channel amplifiers.
  • Ideal for systems where the radio does not have RCA outputs.
  • Engineered by Rockford Fosgate, a trusted name in premium audio systems and accessories.
  • Compact design for flexible mounting and easy installation.

Customer Reviews (4.8 / 5 · 5 reviews)

David ★★★★★

Tapped into my factory head unit’s speaker wires and the RCA outputs came through clean — no noise or distortion even at higher volume. The compact size made it easy to hide behind the dash, and the 4-channel setup let me run my amp without swapping the radio. Install took under an hour.

Ellie D. ★★★★★

Was skeptical about tapping into my factory stereo without RCA jacks, but this little guy made the install painless and the signal to my four-channel amp is clean with zero noise. The wiring harness is straightforward enough that even I could figure it out in an afternoon.

Henry ★★★★★

The compact size made tucking it behind the dash totally painless, and the 4-channel setup gave my factory head unit a clean signal for the amp. Zero noise or hum after wiring it up, which surprised me for the price.

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