Stack in a Jack does not change the tone of your instrument, This allows the full frequency of your instrument to pass through, this is why it sounds more like amp distortion. It is the Warmest, Smoothest distortion you have ever heard. Between the Distortion, Tone and Master you can get any amp to come Alive!
It really acts like one of Lee Jackson's guitar amps, the distortion is fully controllable by your guitar. It makes the cleanest guitar growl
100 % Analog Circuitry and it is True Bypass
Dimensions: Approx 1.30 D x .81 W x .95 W Shaft length: .388 Shaft size: .375 Knurl Type: Metric 18 tooth Wire Length: 8"