The Boss BD-2 Blues Driver is an Overdrive Pedal that delivers warm Valve Guitar Amplifier Sounds. For sale at Guitar.co.uk online and in our Glasgow shop. The Boss BD-2 Blues Driver is also dynamic which makes it respond well to volume and picking nuances. The BD2 Blues Driver also works well as a Tube Screamer type effects pedal that you can use to push your Valve Amp a bit harder. Great if you need a bit more gain and volume forcing the Tubes work a bit harder. Built like a tank, this Boss BD-2 Blues Driver compact overdrive pedal should last for years. That is why many professional musicians use them every night up on stage.