Peavey Rock Master Preamp Pedal

The Peavey Rock Master Preamp Pedal brings the iconic Ultra Gain channel sound from the early 90s Rock Master rack preamp into a compact stompbox format. This is a proposition for guitarists seeking authentic, high-gain tone in the style of classic Peavey XXX and JSX amplifiers, housed in a durable metal enclosure.

Product Features

Based on TransTube® technology, the device faithfully replicates the circuit of the original Ultra channel preamp. It features Pre Gain and Post Gain controls and an active EQ section with Bottom, Body (with Mid Shift switch), and Edge bands. Equipped with anti-click footswitches, Hard Bypass functionality, and an internal HV power supply powered by a battery or 9V adapter. The die-cast enclosure and 2-ounce copper circuit boards ensure robustness.

Legendary High-Gain in a Compact Package

The Peavey Rock Master Preamp Pedal belongs to the Legacy Preamp series, which celebrates the brand's decades of innovation. At its heart is the analog TransTube® architecture, simulating the dynamics and saturation of a cranked tube with convincing harmonic response. This allows the pedal to deliver a sharp, aggressive sound with a powerful low end and articulate response, as expected by hard rock, metal, and shred performers. The gain section allows for precise adjustment of input (Pre) and output (Post) levels, facilitating integration with various power stages or interfaces. The three-band active equalizer (Bottom +/-15 dB, Body +/-15 dB, Edge +/-15 dB) provides full freedom in shaping the sound character – from tight rhythm crunch to super-saturated leads. The Mid Shift switch further modifies the midrange, helping to cut competing frequencies in dense mixes. The pedal is suitable for both home playing and brutal stages, maintaining reliability thanks to EMC and FCC certification and click-free footswitches.

Applications

• Generating high-gain rock and metal tones
• Creating saturated, solo lead parts
• Achieving clean, tube-like tones with character
• Reproducing classic Peavey tones from the 90s in a modern format

Detailed Technical Specifications

• Technology: TransTube®
• Power: 9V (adapter or battery), internal HV power supply
• Gain Controls: Pre Gain, Post Gain
• EQ Controls: Bottom (Low Shelf +/-15dB), Body (Peak/Notch +/-15dB), Edge (High Shelf +/-15dB)
• Switches: Gain, Bypass, Mid Shift
• Enclosure: Die-cast metal
• PCB Boards: Fiberglass, 2-ounce copper, plated through holes
• Character: High-gain rock/metal, super-saturated leads, tube-like clean tones

Materials and Construction

The enclosure is made of die-cast metal, protecting against mechanical damage. Inside, fiberglass PCBs with 2-ounce copper and plated through holes are used, guaranteeing signal stability. High-quality potentiometers, switches, and jacks are employed, and the entire unit meets electromagnetic emission and immunity standards.

Package Contents

• Peavey Rock Master Preamp Pedal
• Manufacturer documentation

Summary

If you are looking for the authentic, aggressive sound known from iconic 90s amplifiers, the Peavey Rock Master Preamp Pedal delivers real impact in a convenient form. The combination of TransTube® technology, versatile equalization, and armored construction makes it an indispensable tool for metalheads, progressive players, and tone purists who demand the highest quality high-gain without compromise.