Analog: Inputs Connectors 2x balanced XLR female connectors Type DC coupled, dual-differential Common-mode rejection ratio (CMRR) >90dB Impedance ~1.5k ohms Maximum input level +31dBu Outputs Connectors 2x balanced XLR male connectors Type DC coupled, dual-differential Impedance ~95ohms Maximum output level +23dBu Frequency Response (analog input to ADC to DAC +/- 0.1dB, 10Hz to 40kHz, -1dB at 74kHz to analog output, referenced to 1kHz, Fs = 192kHz) (see page 39) Analog Level Trim ADC input (Lo-Z source) Max input for 0dBFS: +30dBu Min input for 0dBFS: +5.5dBu (3dBV) DAC output (Hi-Z load) Max output at 0dBFS: +23dBu Min output at 0dBFS: +4dBu (+1.8dBV) Factory Trim (accessed via 15-turn, rear-panel mounted potentiometer) Headroom +18dB Reference level +4dBu = -18dBFS Max input/output at 0dBFS +22dBu
Digital: 2-Channel S/PDIF Connectors Dual stacked RCA Type Unbalanced, transformer driven output, AC coupled input 2-Channel AES/EBU Connectors Transformer isolated, balanced XLR (x4) Single wire and dual-wire modes (for sample rates of 176.4kHz and 192kHz) 2-Channel ADAT Optical Connectors Dual in-line optical TX/RX (reinforced) Clock: Sample Rate (internal) 44.1, 48, 88.2, 96, 176.4, 192kHz Sample rate (external) +/- 12.5% vari-speed lock at all rates 4x BNC Clock Outputs 75 ohm, 5V CMOS drive 2x BNC Clock Inputs 75 ohm internal termination, AC coupled 1.2V(p-p) minimum, 5V(p-p) maximum, 50mA maximum over-voltage current (20 ohms/volt) BNC Clock In to Clock Out Delay 50ns maximum, negative edge aligned when synchronized at multiple or submultiple rate
