Peavey Electronics

Rock Master® Preamp Pedal

SKU: 03621640
List Price: $239.99

$199.99 USD

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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
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Frequently asked questions

How close is the Rock Master Preamp Pedal to the sound of the original Rock Master amplifier?

Practically identical. The Rock Master Preamp Pedal is equipped with the same TransTube technology that gave the '90s preamp its punchy, tube-like response. The gain and EQ architecture remains true to the original Rock Master amp's "Ultra" channel.

Is the Rock Master Preamp Pedal an "amp in a box"? What does that mean anyway?

Yes, the Rock Master Preamp Pedal is essentially an "amp in a box" pedal. This means it offers everything that an amplifier's preamp section would, including gain controls and EQ for tone shaping.

Will the Rock Master Preamp Pedal work with my amplifier? How should I connect it?

Yes, the Rock Master Preamp Pedal will work with any guitar combo amp or amp head. If your amp has an FX loop, connect the preamp pedal to the input or return for the FX loop to completely bypass the preamp section. You can also plug straight in to the guitar input: set the amp's gain to a clean tone and leave the amp's EQ controls neutral for best results.

Does the Rock Master Preamp Pedal have a built-in speaker cabinet simulator?

No. The Rock Master Preamp Pedal is intended to be used to supercharge the front end of your amplifier, plug into a power amp with speakers, or connect to a speaker emulator. You can also record the output of the preamp pedal and apply IR speaker emulation in your DAW.

Can the Rock Master Preamp Pedal replace a "real" amplifier?

Yes, you can use the Rock Master Preamp Pedal to replace a traditional amplifier in performance and recording situations. Keep in mind that you will want to apply speaker emulation in your signal chain for realistic amp tones.

How does the Rock Master Preamp Pedal handle clean vs. dirty tones?

Very well. Power is stepped up to 30 volts internally for high-headroom dynamics, giving you the range you need for punchy clean tones. Adding gain delivers the tenacious and saturated sound of the classic Ultra channel. A Gain footswitch makes it easy to switch between cleaner rhythm tones and searing lead tones.

Comparison: Rock Master vs Bandit Supreme vs Session -LTD 400 vs VTM Preamp

Charted items: Rock Master vs Bandit Supreme vs Session -LTD 400 vs VTM Preamp
Feature Rock Master Preamp Pedal Bandit Supreme Teal Stripe Preamp Pedal Session -LTD 400 Preamp Pedal VTM Preamp Pedal
Smart features Re-creation of the original Rock Master "Ultra" channel, mid-shift switch, wide EQ range (+/-15dB), anti-click footswitches Re-creation of the lead channel circuit found in Bandit 112 and Supreme 160 "Teal Stripe" amplifiers, gain boost and mid shift switches, wide EQ range (+/-15dB) Re-creation of the Session/LTD 400 preamp circuit (circa 1974), internal 25V power from 9V supply, mid shift control, presence control Re-creation of the Peavey VTM 60/120 preamp circuit (circa 1987), 8 DIP switches for Custom Response Modifications, passive 3-band EQ
Tone / Character High-gain rock and metal, capable of super-saturated leads and punchy, tube-like clean tones Highly versatile, ideal for '90s rock and alternative, ranges from spanky cleans to punchy crunch High-headroom cleans, punchy and articulate, optimized for pedal steel and clean tone with harmonic richness Known for a unique and aggressive character with exceptional versatility via 8 DIP switches to customize response, excellent clarity and definition, vintage tube-like crunch
Gain Controls Pre and Post gain Supersat (Pre) and Post gain, gain boost switch Volume Pre and Post gain
EQ Controls Bottom, Body (with Mid Shift), Edge Bottom, Body (with Mid Shift), Edge Bass, Mid (with Mid Shift and Presence), Treble Low, Mid, High
Footswitches Gain, Bypass Bypass Bypass Bypass

Support and Documentation

If you have questions concerning product operation, support or warranty, contact one of our Customer Support Representatives by email at [email protected], or by phone at 877-732-8391 (toll free in the US).

Alternatively, you can seek assistance from the Peavey community through the Peavey Forums.

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