Soul to Soul Is the true Reinvention Of Two Classic legend channels used for Stevie Ray Vaughan re designed for Diaz , General Vintage Tone and two fine overdrives preamps In Unit Separate And Independent Circuits For channel. Soul to Soul is part of more than 25 years working in professional audio, Soul to Soul are two souls together with all the Texan spirit to drive your amplifier towards Stevie's electric blast, just connect the jack and plug in your Stratocaster! The unit has a wide versatility of Filter, Rectification of glass or silicon with high precision controls. Both channels can work independently or in link mode, of course both true by pass. The unit works in 9 to 18 volts with external power supply only . The Stevie Ray Vaughan Tones is coming !!