The BBE SM500 Sonic Maximizer is a modular single-channel signal processor designed to be used specifically with the API-style 500 rack made by many manufacturers today. It provides processing for a mono channel, brightening, clarifying, and adding fullness to the sound. Features include +23dBu headroom and a bypass switch for comparison of processed to unprocessed signals.The SM500 uses the same processing engine as our celebrated 882i model, and the same process that has enhanced recordings for everyone from Ryan Hewitt (Avett Brothers, Red Hot Chili Peppers, Flogging Molly) to Ed Cherney (Rolling Stones, Bonnie Raitt) to Tony Visconti (T. Rex, David Bowie, Alejandro Escoveda).Throughout the world, there's barely a studio, sound engineer or record producer that doesn't own some version of BBE's Sonic Maximizer.The SM500 is a single channel of BBE's renowned Sonic Maximizer in the API 500-Type chassis. The SM500 features the same Sonic Maximizer engine that powers our 882i rack-mounted model It is a plug and play module that fits into any of the 500 racks currently available from API, Radial, Aphex, Daking, Chameleon Labs and others. These racks have their own power supply, and audio I/O, for the modules. The SM500 ships as a single module and can only be used when it's plugged into one of the third-party racks mentioned above.