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There are a lot of USB interface boxes for getting analog audio digitized and into a computer via USB where it can be recorded, processed and edited. But there’s not nearly as many boxes dedicated to going the other — passing the audio out of a computer to a mixer, analog recorder or mixer.
The USB-Pro from Radial Engineering is one such offering. Coming in Radial’s standard “book”-style heavy-duty steel box, the USB-Pro DI offers left and right XLR balanced outputs, level control, mono sum, ground lift and a headphone output. It operates up to 24-bit/96 kHz.
It is compatible with Mac OS X and Windows XP, Vista and 7. Price: $220.