Three clipping modes offer a trio of killer overdriven tones, ranging from a smooth, subdued midrange tone, to a more aggressive sound featuring asymmetrical clipping for ear-tickling harmonic emphasis. The diode clipping circuit can be swapped for a tube-like MOSFET clipping circuit with the flick of a mini switch. The resulting sound was remarkably warm and woolly, with a bigger bottom than its diode-clipping pedal-mate. The Bass-Drive does not offer hugely buzzy metal sounds, but for warmth, girth, and versatility therein, it’s awesome. It even features a hi-fi clean-boost circuit for hitting the front end of an amp with a clean high-gain signal.