The "Swiss Army knife" of direct boxes has arrived in the form of the Radial ProAV1, an all-encompassing multimedia DI. Designed specifically for use with an audio-video integrator, the ProAV1 offers a bevy of stereo inputs that can be summed to mono for ease of signal management. Including 1/4" inputs for instruments, RCA and 1/8" inputs, and a female XLR input, the ProAV1 maintains its "Swiss Army" functionality.