The USB input has insulated by ADuM (analog devices) to prevent any noise from the PC.
When the USB is used together with a player application such as FooBar or WinAmp (available for free on Internet), you can transfer stream music files to internal converter at 192kHz/24bits maximum frequency/resolution, avoiding undesired PC or MAC audio mixer data processing during the data transfer from hard disk to interface.
Frequency response 0.5 Hz ÷ 20 KHz ± 0.1dB
Upsampling 192 KHz
Dynamic Range 122 dB
THD + Noise > -100 dB
Maximum output voltage 2.5 Vrms
Output impedance 600 ohm
Input sampling rates 32 – 192 KHz
Resolution rates 16 – 24 bit
Main voltage AC (50-60Hz) 100, 110-115, 220-230, 240 V
Power consumption 70 W
Dimensions and weigth 420x113x380mm (wxhxd) - 15 Kg
Shipping dimensions and weigth 570x270x540mm (wxhxd) - 18 Kg