Levon boost

LB 2You know that tone you get when your neighbors are at work and you can crank your amp up to 7 or 8? That sweet tube saturation that fills your ear-holes with delight… it’s hard to beat. How about that moment in your band’s set where you get to step up front and rip that lead you’ve been working on for hours? The Levon boost was designed specifically for those moments. With the Levon (pronounced “Leave On”) you can crush the preamp section of your amp with gain and achieve that awesome breakup EVEN WHEN YOUR NEIGHBORS ARE HOME!

Taking the infamous SHO* circuit designed by a certain Zachary, we added a little noise filtering to eliminate popping and some hiss from the original circuit. Also, the addition of a master volume control on the Levon boost allows you to dial in the perfect amount of hair while keeping the volume at a manageable level.

This also means you can dial that hair back and use the Levon boost, well… as a boost! And don’t worry about that crackling when adjusting the “push” (gain) control! That’s just the transistor adjusting.

We feel like the Levon boost sounds so great you’ll just want to leave it on, but you may opt for the boost… or you may just want to buy two.

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  • True Bypass switching
  • All analog circuitry
  • Neutrik Jacks
  • Alpha pots
  • High quality, 1% tolerance resistors
  • High quality film capacitors
  • Handwired, hand-stamped, hand-painted
  • Negative center, 9V BOSS* style DC power


ORDER 129€ in the European Union (includes VAT) 109€ outside the EU




*Mercy Seat Effects claims no affiliation or ownership of the “SHO” name, Z. Vex or Super Hard On.