Tsar Bomba

Named after the most powerful nuclear weapon ever detonated, the Tsar Bomba is Union Tube & Transistor's take on the Big Muff topology—but with critical refinements that address the classic circuit's weaknesses.

The volume control offers a flexible range extending 15dB below standard Muff designs and 5dB above, giving you unprecedented control over output level. More importantly, Union designed the tone circuit from scratch to provide precise sculpting capabilities, letting you create tones that cut through full ensemble settings where most Muffs would be buried.

This is a Muff for players who love the wooly sustain of the classic circuit but need it to work in a band context. The Tsar Bomba delivers all the harmonic richness of its inspiration while remaining audible in the mix.