Duo Tonic


The Duo Tonic Overdrive is an innovative tube-based preamp/overdrive/boost pedal.

Aspen Pittman Design's newest design for the guitarist combines a classically voiced “two pentode” all tube high gain channel that has a full range of tone and timbre controls, as well as two vintage inspired SS overdrive circuits. Dual OD options driving dual tube gain channel provides a Dou Tonic for reviving your tone!

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Designed by two giants of modern tube technology – Aspen Pittman and Mark Samson – the Duo Tonic Overdrive allows guitarists to get a true cranked-tube sound in any situation, at any volume.

The Duo Tonic Overdrive pedal features top-quality components inside. The only way to get real tube sound is to use real tubes, and driving the tube channel you’ll find a genuine pair of military-spec 6205 pentode tubes. And the overdrive/boost side of the pedal gives you classic mid-hump drive tones thanks to the JRC4558 chip. You’ll get incredible touch sensitivity and that authentic drive that’s been used to push tube amps for decades.

The Duo Tonic Overdrive is designed to feed its solid state overdrive side into the tube section. This is both is the key to its sonic diversity and what gives it the ability to emulate the sound of a tube amp getting pushed hard. The solid state side can be used to nudge a tube amp toward saturation. Or you can use the tube section like a new channel on your amplifier, all the while having a separate JRC4558 based overdrive to push any of your tones into crunchier territory. Better yet, use both sides together and let the distortion run wild!


  • Designed to give cranked tube amp tones, pushed by an overdrive pedal
  • Two independent channels (tube and overdrive/boost)
  • Contains military-spec 6502 pentode tubes
  • Overdrive/boost section makes the pedal incredibly touch-sensitive


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