Mudhoney II

Two Channels of Classic T-Rex Gain

Crunchy overdrive. Thick distortion. Independent control. One pedal.

The T-Rex Mudhoney II takes the character of the original Mudhoney and doubles it.

Two independent gain channels let you set up two completely different sounds—from a lightly driven edge to a thick, saturated distortion—and switch between them instantly.

Each channel has its own Gain, Level, Tone, and Boost controls, so you are not simply getting two volume levels of the same sound. You can build two distinct gain voices and keep both ready under your foot.

From Crunch to Full Distortion

Mudhoney II was designed to move easily between different levels of gain.

Set one channel for a warm, crunchy overdrive and the other for a much more aggressive distortion sound.

That gives you a simple three-stage live setup:

Clean amplifier → Crunchy overdrive → Full distortion

without stacking multiple drive pedals or changing settings between songs. T-Rex specifically designed Mudhoney II around this progression from clean amp tone to crunch and then searing distortion.

Two Independent Channels

Each Mudhoney II channel includes its own:

• Gain
• Level
• Tone
• Boost

That independent control is what makes the pedal so useful.

One side can be open, dynamic, and relatively low gain.

The other can be darker, louder, more compressed, or significantly more aggressive.

Build the two sounds around your guitar, amplifier, and playing style instead of compromising with one shared set of controls.

Gain

The Gain control determines how much overdrive and distortion each channel produces.

Lower settings give you edge and crunch.

Turn it higher and Mudhoney II moves progressively toward thicker, more saturated distortion.

Because each channel has its own Gain control, you can create a genuine rhythm/lead relationship—or simply two completely different distortion textures.

Level

Each channel also has its own Level control.

Around 12 o’clock, the pedal’s output is approximately equal to the input level. Turn Level fully clockwise and T-Rex specifies up to approximately 15 dB of output boost.

That means you can use the channels not only for different amounts of distortion, but for different output levels as well.

Set one at unity for rhythm.

Set the other louder to push a solo forward.

Tone

The independent Tone controls let you shape the top end of each channel separately.

That can be particularly useful when the two gain settings need different EQ.

A lower-gain channel may benefit from extra presence and articulation, while a high-gain channel may sound better with some of the upper edge softened.

Mudhoney II lets you make that decision independently for each sound.

Boost on Both Channels

Each channel includes its own Boost switch, allowing you to select between moderate and higher gain behavior independently.

That adds another level of flexibility to the dual-channel architecture.

You can configure:

• Both channels moderate
• One moderate / one boosted
• Both channels boosted

The result is a much wider gain range than the simple two-channel layout initially suggests.

Deliciously Dirty

The original Mudhoney earned its reputation by covering an unusually wide range of gain—from smooth dirty edge through aggressive distortion.

Mudhoney II keeps that basic voice and gives you two independently adjustable versions of it in a single enclosure.

That makes it useful for:

• Blues
• Classic rock
• Alternative
• Grunge
• Hard rock
• Punk
• Lead guitar
• Rhythm crunch
• Dirty boost sounds

Features

• Two independent channels of T-Rex overdrive/distortion
• Independent Gain control for each channel
• Independent Level control for each channel
• Independent Tone control for each channel
• Independent Boost function for each channel
• Up to approximately 15 dB output boost available from the Level control
• Wide range from light crunch to heavy distortion
• 9V DC operation
• Low 20mA current draw
• 9V battery operation
• Rugged metal enclosure

Specifications

• Product type: Dual distortion
• Controls: 2 × Gain, 2 × Level, 2 × Tone, 2 × Boost
• Input impedance: greater than 1MΩ @ 1kHz
• Output impedance: less than 1kΩ @ 1kHz
• Power: 9V DC
• Minimum supply voltage: 8V DC
• Maximum supply voltage: 12.5V DC
• Current draw: 20mA at 9V DC
• Maximum input signal: 1.5Vp-p
• Battery: 9V 6F22
• Estimated battery life: 6–9 hours
• Connections: Input, Output, 9V DC
• Dimensions: 3.9 × 2.2 × 4.7 in
• Metric dimensions: 100 × 55 × 120 mm
• Weight: 12.3 oz / 0.35 kg

Power Budget

9V DC / 20mA

Mudhoney II is extremely light on your pedalboard power budget.

FuelTank Classic

Uses just 20mA of the shared 500mA 9V current budget.

✓ Compatible

FuelTank Junior

A single 120mA isolated output provides considerably more current than Mudhoney II requires.

✓ Compatible

FuelTank Chameleon

A standard 9V Chameleon output provides up to 300mA.

✓ Compatible

Mudhoney II needs only the current it requires—the extra available current simply remains unused.

Learn more: Understanding Your Pedalboard Power Budget

Two Mudhoneys. One Pedal.

One channel for crunch.

One channel for distortion.

Or two completely different versions of either.

Mudhoney II gives you the range and personality of the classic T-Rex Mudhoney with the flexibility of two independently controlled gain stages ready under your foot.

Dirty when you want it. Dirtier when you need it.