ART USBDI USB Direct Box Need to get audio from a computer to a mixer or PA? The USB DI offers high-quality digital-to-analog conversion and balanced XLR outputs, providing a pristine signal to any analog sound system. Custom output transformers isolate the digital and analog elements, eliminating ground loops and system noise. A front panel switch selects between a fixed volume at the main outputs or variable adjustment with the Level knob, which also controls the headphone output. A ground lift switch on the rear panel engages an extra layer of hum protection. The USB DI is class-compliant and bus-powered, so it doesn't require driver software or an external power supply. General Features: USB 2.0 Connection Supports 32 kHz, 44.1 kHz, and 48 kHz Sample Rates Transformer-Isolated XLR Outputs Fixed or Variable Main Output Level Level Control Adjusts Monitor or Main + Monitor Volume Switchable Ground Lift Class Compliant Bus Powered Specifications: Active or Passive Active Inputs USB 2.0 (Type B Connector) Outputs 2x XLR 1x 1/8" TRS Headphone Maximum Output Level +.75 dBu (Variable Output Mode) -1.5 dBu (Fixed Output Mode) Controls Fixed / Variable Output, Level, Ground Lift Frequency Response 20 Hz - 20 kHz +/- dB Supported Sample Rates 32 kHz, 44.1 kHz, 48 kHz Dynamic Range 96 dB A-Weighted (Typical) Total Harmonic Distortion