Amptweaker Fat Metal Pro II High Gain Distortion Pedal

More chug and chunk in your distortion! Designed to work with 7- and 8-string guitars, the Amptweaker Fat Metal Pro II delivers the ideal metal rhythm tone.
Designed by iconic high-gain amp guru James Brown, the Fat Metal Pro II redefines rock/metal tone and the emergence of 7- and 8-string players that need more pronounced and controlled low end. More "chunk" and more "chug" -- in a word, MORE!

James recognized this trend years back and decided it was necessary to create a box specifically designed for these players. Understanding what players need is a hallmark of the Amptweaker philosophy and one that continues to this day. In addition to a full assortment of high-gain tones and switching capabilities, the Fat Metal Pro II now includes Depth Finder and DiFizzerator processing built in for even more tone sculpting abilities.

Perfect for live and studio, the Fat Metal Pro II has included a balanced DI, cab sim and headphone output in addition to three separate loops for multiple processing and switching combinations.

All analog circuitry means none of the latency associated with digital technology for better dynamics, better response, better tone.

Designed for low end distortion used in Black Metal, Doom Metal, etc.

Ultimate tool for recording -- A Swiss Army knife of tools to create perfect tracks quickly and easily. No fumbling through menus or subpages. Turn a knob-get the sound. EQ, Noise Gate, Depth Finder, DeFizzerator, Balanced Output, Cab Simulator all available and ready to go!

Can be used as a preamp or effect pedal -- Connect the Fat Metal Pro II directly into the effects return on an amplifier or directly into a read more power amp for a full sonic assault or simply run it in into the clean channel of a favorite amp.

Built in noise gate -- Fast and responsive to keep everything TIGHT!

Depth Finder -- Simulate the response of a tube power up with an all analog circuit design. Control Resonance and Presence. Warm up a solid-state amp or add depth to a direct recording track.

DeFizzerator -- Take out some of the excessive high end associated with some amps and speakers in high-gain mode.

Effects Loops -- Three distinct and incredibly useful effects loops conveniently located on the back of the box for easy access and configuration.

Global Loop -- Works when the pedal is on. Great for EQ/Reverb etc.

Boost Loop -- Works whenever the Boost switch is activated. Great for creating the perfect lead tone. Use it to place delay, reverb or other effects that are used during solos.

Side Track -- Use as an A/B switcher between amps -- clean, dirty, etc. OR as an ancillary loop for additional effects when the Fat Metal Pro II is not active.

Two Boost Controls -- One before and one after the distortion.

9V or 18V -- Run at 18V for more headroom or 9V for more drive & compression


- Hi-Gain Preamp for Recording or Live Performance
- DeFizzerator Built In
- Depth Finder Built In
- Noise Gate
- Resonance & Presence Power Amp Style EQ
- 3-Band EQ w/Smooth Edge & Thrash Switch
- Three Effect Loops (Global/Boost/Side Track)
- Speaker Simulator
- Balanced DI
- Headphone Output
- Dual Boost Controls via Boost Footswitch
- Gain, Tight & Volume Controls
- Runs at 9V or 18V
- Current: 39mA with 9V adapter (Power Supply NOT Included)
WARNING: Cancer and Reproductive Harm -
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- Weight: 3 lbs.
- Dimensions (WxDxH): 5.63" x 5" x 2.13"
- Made in the USA
- 5 Year Limited Warranty
Dimensions and Weight in Packaging
Base Item
Shipping Weight: 1.5 lbs
Shipping Dimensions: 8 x 6 x 4 in
Manufacturer Part Number (MPN): AMT FMPROII
For support or warranty questions, please contact the manufacturer: