An awesome rendition of the famous Germanium boost effect! Dazatronyx pedals are all hand-built by Darron Thornbury right here in Melbourne, Australia. Voicing switch: Mid - Effective at boosting for more drive, without the bottom end getting too flabby. Bright - Slightly fuller than a classic treble booster. Full Cream - Extra body, and fat tone. GE / SI:A switch between germanium and silicon transistors. Silicon mode can be used as a backup in extreme temperatures, or for some harder clipping texture. This switch mechanically 'hot swaps' the transistor. Expect a small pop noise. For purity of design, this pedal uses a positively grounded case. As such, it needs to be run from an isolated power supply, or battery. IE this pedal may not be suitable for a daisy-chain power supply. Battery use is not necessarily preferred. Replay Guitars is a proud Dazatronyx retailer - all their pedals come with a 10 year warranty.