USB DI -full transformer balanced output isolation to eliminate earth loops / ground hum and other extraneous interaction noise and distortion. The volume control allows the USB DI-VC to be used without a mixer. This is a very useful option when driving active loudspeakers from a laptop - the level control lets you adjust the level instantly to deliver the required SPL, which still retaining an excellent signal-to-noise ratio.
USB D.I. gets the audio from a Laptop, PC or Mac computer into your professional audio system quickly and reliably. This little blue box plugs straight into a spare USB port on a computer – instantly recognised by the system’s software, which then simply prompts you to select the unit as the default audio output device. OSX/Windows generally does this all by itself – it’s genuinely ‘plug & play’, as it were. Confirmation of connection is indicated via a bright green glowing status LED. Nice and simple, just like plugging in a USB stick; no drivers required. The computer’s audio now comes out via the USB D.I. and is connected to the audio system via XLR mic cables, and this version has a handy rotary volume control for quick level adjustments.