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Metasonix TX-2 Butt Probe

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Page last updated Apr 11, 2026

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The Metasonix TX-2 Butt Probe is not your average fuzz effects pedal. Designed for guitarists who crave unconventional and boundary-pushing sounds, this pedal is a unique addition to any pedalboard. Unlike traditional fuzz pedals, the TX-2 employs vacuum tube technology, giving it a distinct character that’s both chaotic and rich. Ideal for experimental musicians, this pedal can take your sound from a subtle buzz to a full-on sonic assault with just a twist of its intuitive controls.

Crafted by Metasonix, a company known for its avant-garde approach to sound design, the TX-2 Butt Probe doesn’t just offer fuzz—it offers a whole new dimension of texture and tone. The pedal’s circuitry is designed to produce unpredictable and dynamic distortions that can’t be replicated by any digital alternative. Whether you’re looking to add depth to a live performance or create intricate soundscapes in the studio, the TX-2 is a tool that encourages creativity and exploration.

Key Features:

Utilizes vacuum tube technology for unique sound characteristics
Capable of producing a wide range of fuzz effects, from subtle to extreme
Intuitive controls for easy manipulation of sound
Ideal for experimental and avant-garde music styles
Handcrafted by Metasonix, known for innovative audio equipment

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Ben Davis

D16 Phoscyon + Metasonix Butt Probe

Ben Davis

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Critic Reviews

Metasonix TX-2 Butt Probe Effects Box - CDM Create Digital Music

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The Metasonix TX-2 Butt Probe is an audacious effects box that promises extreme distortion through its unique use of 4BN6 vacuum tubes, originally designed for old TV sets. While it aims to deliver a broad range of distortion effects, the review sarcastically highlights the poor audio performance of these tubes, even labeling them as "suck," which is not a ringing endorsement. Priced at $549, it's hand-made and features offensive artwork, which might appeal to collectors of oddities. However, its appeal seems more niche, catering to those who appreciate its shock value over audio fidelity, making it less practical for general musicians.

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Limited Edition TX-2 "Butt Probe" from Metasonix

audiomasterclass.com

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5.0 out of 5

Based on 0 Reviews and 3 Ratings

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Trent Reznor

Singer, Guitarist

Nine Inch Nails

Verified via Imgur

Trent Reznor's Metasonix TX-2 Butt Probe in his "Nothing Studios" is seen on a Metasonix rack to the right side of the image. Here is a closer look at the rack.

James "Munky" Shaffer

Guitarist

Korn

Verified via Twitter

Munky himself posted an image with it in the studio. Unclear when it’s ever used.

Jim Adkins

Singer, Guitarist

Jimmy Eat World

Verified via guitarworld

That’s it, except for the occasional subtle boost and the Metasonix Butt Probe. That pedal has been on every record of ours since it came out! For amps, it’s a mixture of a Marshall 1979 JMP and Axe-FX.