Free Express Shipping! Sound Devices USBPre 2 USB-B Audio Interface Field Mixers & Location Sound Recordists, Bus Powered, Mac/Windows/Linux, 2 Mic Preamps, 2 Line In, Stereo Aux In, 2 Headphone, 2 Mic/Line, 2 Aux Out, 24-Bit / 192 kHz AD/DA...