The Behringer Ultra-DI Pro DI800 Active Phantom Powered 8-channel DI Box is a rackmount DI with sufficient inputs to accommodate everyone onstage or in the studio. Direct Injection (DI) boxes, of course, let you plug guitars and basses, keyboards, etc. directly into your board. For impedance matching and signal integrity, they‘re indispensable. The DI800 is a DI on steroids. With its active circuitry, it sports buffered inputs that won’t pollute your signal (as passive DIs can). Boasting a bevvy of boost/attenuation, ground lift, and connectivity options, Behringer‘s Ultra-DI Pro DI800 is your audio Swiss Army Knife.