The FrAG Boost is one of our most brutal and flexible boost/preamp pedals to date. Built for players who want more aggression, more precision, and more attitude — it’s designed to push the front end of your amp into sharp, cutting high-gain territory while keeping your tone tight and articulate. Use it as a preamp boost to any high gain pedals or amps to kick your tones.

Drive adds a bit of crunch and grit, will get you from completely grind to overdriven territory. Bright knob will bring presence and slice through the muddy low-end. 8-Mode selector will help you dictate the low-end cut with 8 different modes. Volume is a classic 0 to full-on boost to slam your amp front end.

Result is rich harmonic, no more flubby low-end, super sharp and crisp metal tones.

It’s the perfect partner for any amp that needs a little more bite, or a pedalboard that needs a clean, solid signal driver.
Like all GUPTech gear, it’s hand-built in Saguenay, Quebec, using quality components and a no-nonsense layout meant to live on the road.
Tech Specs
  • True Bypass
  • 9V DC center-negative (no batteries)
  • Current draw: 3 mA
  • Handmade in Québec
Why it exists
We made this one because sometimes you just want your amp to sound like it’s furious—without adding fizz or losing the low-end punch. The FrAG Boost gives you that presence and depth, like stacking two great boosts in one box.





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ConditionBrand New (New)
Brand New items are sold by an authorized dealer or original builder and include all original packaging.Learn more
Brand
Model
  • FrAG Boost – High-Gain Boost Pedal-Neon Yellow
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GUPtech

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