The Rock Master®
Legacy, Reborn Our original Rock Master® preamp became a favorite for its fire and flexibility. This pedal brings that voice back in an easy-to-use format.
Active EQ, Wider Range Bottom, Body, and Edge controls cut or boost like a pro mixing console, giving you precise tonal control far beyond a standard EQ.
Tube-Era Feel, TransTube® Tech The Rock Master® Preamp Pedal captures the character of the Ultra channel using Peavey’s TransTube® circuitry engineered to deliver authentic tone and touch from a standard 9V supply.
EQ That Goes Beyond Treble, Mid, Bass Bottom, Body, and Edge controls give you a broader tonal palette than a standard EQ — precision shaping that matches the original Rock Master® design.
Dynamic Range Without
Limits With stepped-up 30V rails, the Rock Master® Preamp Pedal delivers the headroom high-gain players need, keeping your tone tight and powerful at any level.   Key Features

• TransTube® recreation of the groundbreaking Peavey Rock Master® “Ultra” channel circuit (circa 1990) in a pedal
• Internal HV TransTube® supply from standard 9V supply/battery
• Hard Bypass switch with anti-click circuit
• Pre and Post Gain controls
• Gain and Mid Shift switches
• Three-band active Bottom, Body, & Edge EQ
• Tested and formally approved for worldwide EMC and FCC compliance by an independent laboratory