Specifications: Analog Inputs: 2 x Combo Balanced Analog (XLR / 1/4 TRS) factory calibrated to +20dBu; Digital Inputs: 1 x AES/EBU on XLR (32kHz to 192kHz) @ 110 Ohms terminated, 1 x S/PDIF on RCA (32kHz to 192kHz) @ 75 Ohms terminated, 1 x TOSLINK on optical fiber: up to 96kHz; Word Clock Input: 1 x Input @ 75 Ohms 3Vpp on BNC 32 – 192kHz; Analog Outputs: 1 x Stereo pair of Balanced XLR Outputs from D/A Converter (Main Output) is factory calibrated to 20dBu and user adjustable from 8dBu to 26dBu, 1 x Stereo pair Balanced Outputs for monitors (2 x 1/4 TRS), 1 x 1/4 TRS Front Headphones 20dBu; Digital Outputs: 1 x AES/EBU on XLR (32kHz to 192kHz) @ 110 Ohms terminated, 1 x S/PDIF on RCA (32kHz to 192kHz) @ 75 Ohms terminated, 1 x TOSLINK on optical fiber: up to 96kHz; Word Clock Outputs: 8 x Outputs @ 75 Ohms 3Vpp on BNC 32 – 192kHz; USB I/O: USB 2. 0 Hi-Speed; Data stream up to 480Mbits/192kHz, 4 channels I/O playback/record, Type B; External Reference Clock: 1 x 10M Atomic Clock Input @ 75 Ohms 1Vpp on BNC, 1 x Word Clock Input @ 75 Ohms 3Vpp on BNC 32 – 192kHz; A/D Converter: Dynamic Range: 122dB, THD+N: -105dB; D/A Converters: Main DAC Dynamic Range 127dB; THD+N -107dB, Monitor DAC Dynamic Range 120dB; THD+N -103dB, Headphones DAC, Dynamic Range: 120dB; THD+N -100dB; Clock Specifications: <+/-0. 02 PPM, oven controlled at 64. 5°C/ 148. 1°F; Clock Aging: < 1 ppm per year; Clock Calibration: < +/-0. 001 ppm; Atomic Clock Input: 10MHz @ 1Vpp, BNC; Sample Rates (kHz): 32, 44. 1, 48, 88. 2, 96, 176. 4, 192; Operating Temperature: 0-50°C, 32-122°F; Weight: 3 kg, Dimensions: 483 x 44 x 220 mm; Power Supply: ~110VAC 60Hz/ ~220VAC 50Hz selectable; Atomic Clock Input: 1 x 10M Input @ 75 Ohms 1Vpp on BNC; Fuses: 2 x 0. 8A 250VAC 5mm x 20mm Type T (or Time delay)