The Crank Starter provides a clean signal boost without changing the tone or compressing the sound of your guitar. It’s based on a well proven JFET circuit that’s configured to mimic the tonal respnse of a preamp tube. So it’s like having an extra tube stage in the preamp section of your amp. Any setting above 11 o’clock on the volume control will provide boost. Like all our pedals, the Crank Starts has turret board construction with top quality components. The capacitor is paper/oil and all the signal resistors are carbon composite for that high quality amp tone. The Crank Starter runs on a 9v battery or a centre negative DC supply and it’s true bypass.