Our friend, Tristan Avakian, stopped by our offices and took the Boost Overdrive pedal for a spin. New for 2012, the Boost Overdrive features a Sparkle control which adds upper harmonics for an open, snappy sound. The Boost kicks in up to 21dB of additional volume (not additional distortion) and works independently from the effect. For more details, visit: http://www.tech21nyc.com/products/effects/boostod.html