RFX is the effects pedal line produced by Rolls Corporation, an audio electronics manufacturer based in Murray, Utah. Rolls is best known for compact mixers, signal processors, headphone amplifiers, and preamps used in live sound and project studios, and the RFX series extends that engineering approach to stage-ready stompboxes built with heavy steel chassis and analog signal paths.

The RFX catalog focuses on utility and modulation effects rather than high-gain distortion. Notable models include the RFX402 and RFX412 stereo volume/panner pedals, which double as expression and control-voltage controllers for keyboards and guitars; the RFX920 Phase O'Vibe, a six-stage phaser with a switchable vibrato mode; the RFX962 Twin Spin rotary-speaker simulator; and the RFX950 Shockwave preamp. The line has historically been positioned for guitarists and keyboard players who need durable, no-frills tools for stereo signal control and classic modulation.

RFX has 2 products cataloged on Equipboard, including Volume Effects Pedals and Switch Effects Pedals. Their gear is featured by 1 artist, with the strongest followings in Rock and Metal. Notable users include Dave Edwardson.