From Wampler:
"The Wampler Mofetta Overdrive/Distortion is my tribute to the MOSFET-driven magic of a 1990s classic — the MT10 MOSTORTION^tm. A mainstay of countless top session players, the Mofetta honors the soul of that elusive yet classic circuit while revealing its untapped potential.

Think of the Mofetta as a supercharged MOSTORTION^tm, reborn and amplified. I made sure that it delivered the classic, amp-like overdrive, massive headroom, and versatile 3-band EQ that made the original so famous. But I also wanted more and added a Texture Switch that introduces actual MOSFETs into the pedal's overdrive section for a bolder, more articulate tone. The Mofetta preserves everything you love about the early '90s legend with a powerful new dimension.

The original MT10 MOSTORTION^tm was released in 1990 as part of a budget pedal series to meet the demand of a growing market. Despite the pedal's "cheaper" qualities, guitarists began to take note of its amp-like low-gain tones, attributing them—arguably incorrectly—to the onboard MOSFET Op-amps. Though the pedals were discontinued a couple of years later, used ones command insane prices today and are extremely hard to find. The Mofetta is my way of bringing it all back and re-creating those singing tones while diving even further into the amp-like world of MOSFETs."