Inputs:
S/PDIF electrical, 75 Ohm unbalanced; BNC connector (RCA adapter supplied); transformer coupled, with capacitively coupled ground; supported sampling frequencies up to 96kHz
USB 1.1 compliant; uses native Windows XP/Vista & Mac OS 9.1/10 drivers; standard USB B connector; supported sampling frequencies 32kHz, 44.1kHz, 48kHz

Output:
Unbalanced (RCA), capacitively coupled, 2.1V RMS

Output Impedance:
160 Ohm @ 1kHz

Frequency Response:
Sin(x)/x equivalent:
@ fS=44.1kHz: 0dB @ 20Hz, -3.2dB @ 20kHz
@ fS=88.2kHz: 0dB @ 20Hz, -0.8dB @ 20kHz

Transient Response:
Clean, with no overshoot or ringing.  
(Time domain performance is shown at page 8 of User Manual.)

Absolute Phase:
Correct
 
Harmonic Distortion:
0.12% @ -6dBFS & 1kHz, I/V dominated
(mostly 2nd and 3rd harmonic)
0.02% @ -20dBFS & 1kHz, I/V dominated
0.7% @ -60dBFS & 1kHz, D/A dominated 
(To see the graphs, please refer to the page 8 of User Manual.)
 
Intermodulation Distortion (CCIR):
0.25% (19kHz+20kHz, -6dBFS each)
 
Mains voltage:
220-240VAC, 50-60Hz , IEC (C14) connector
110-120VAC available upon request
 
Measures (W x D x H):
300 x 221 x 75 mm (including knob, connectors and legs)
300 x 196 x 60 mm (excluding knob, connectors and legs)
 
Weight:
Approx. 3 kg