Whether you play guitar, bass, keyboards or another stringed instrument, you'll need a direct box that won't diminish your instrument's tone, like the Direct Box Active and Direct Box Passive from Warm Audio. Built around world-famous CineMag USA Transformer topology and engineering, the Warm Audio WA-DI-A Active Direct Box is like no other DI Boxes in the world. Constructed with top-tier discrete components housed in rugged aluminum chassis' that include switches, knobs and connectors that are all designed to withstand heavy abuse on the road or in the studio.