This pedal is based on a subminature OTK 6*2B-K vacuum tube. Through it, player can obtain true tube booster and overdrive.
Many way were used control vibration of pedal, damping ring ,reliability subminature OTK 6*2B-K etc.These made Tube booster stable .
Lithium battery can supply more than 4 hours power .So you can play stampbox at any time any where freely. So you can play it at any time any where freely.
 100% DIP components and hand solder, No fragile easy damaged SMT

·All-Tube: 100% analog tube signal path based on a NOS Mil-spec subminiature OTK 6*2B-K tube.
·Boost Control: ranges from 0dB (unity, where the pedal can operate as an audiophile buffer) to substantial 25dB
·Tone Control:
·Resonance Switch: Tunes the resonant peak of a single coil pickup, lowering it, it sound thicker, fatter and more like humbucker.
·True Bypass:
·Strong virtually indestructible steel enclosure
·Heavy-duty industrial footswitch
·Sloped face for easy stomping
·On/Off LED indicator
·Military-spec glass-epoxy circuit board
·"No tools required" battery compartment (12 volt li battey and Charger included)
·DIMENSIONS:5.5(W)x50(H)x12.3(L)CM (unpacked)
·Weight: 1.3kg (unpacked)