The Darkglass B3K V2 is the successor of the renowned B3K CMOS which shocked the bass world. Darkglass added a Tone knob and Mid Boost switch to allow more control over the overall sound and help the player to cut through the mix. The move from toggle switches to on/off buttons is smart, as it makes the pedal more user friendly, and along with the four simple turning knobs the B3K is really easy to handle. Sound wise, as the original version, the B3K V2 is a massive overdrive pedal.