Instant fat tone enhancement!
Allows you to use EL84s in place of 6L6GC, 5881, EL34, and 6V6GT power tubes in real Class A operation. Supply voltage is auto adjusted by the Tone Bone so that no rebiasing is needed. Overall power output is reduced so that saturation of the output stage occurs much earlier. Its saturation distortion has great sustain, fat tone, and optimized dynamic response. Comes complete with a pair of selected Tesla EL84 triode tubes and 2 Play Tube adapters.