The Hot Tubes' unique paracyclic filter makes it a most versatile distortion device. From warm overdrive to vacuum tube Big Muff sustain to the heaviest metal tube driven screams, you won't find a creamier distortion than the Hot Tubes. Powered by AC adapter and toroidal transformer that drives two Electro-Harmonix tubes to maximum voltage!

True bypass using a mechanical relay
Two 12AX7WB vacuum tubes included
Substitute Electro-Harmonix 12AX7 tubes for more gain
12AC-1000 power supply included