Operating instructions
10
Specifications
Analog
• Inputs:
2x balanced XLR female connectors
DC coupled, dual-differential
Common-mode rejection ratio (CMRR): >90dB
Impedance: ~1.5k ohms
Maximum input level: +31dBu
• Outputs:
2x balanced XLR male connectors
DC coupled, dual-differential
Impedance: ~95ohms
Maximum output level: +23dBu
• Frequency Response (analog input to ADC to DAC to analog output,
referenced to 1kHz, Fs = 192kHz):
+- 0.1dB, 10Hz to 40kHz, -1dB at 74kHz
(See Figure 5: Frequency Response on page 40)
• Analog Level Trim:
o ADC input (Lo-Z source):
Max input for 0dBFS: +30dBu
Min input for 0dBFS: +5.5dBu (3dBV)
o DAC output (Hi-Z load):
Max output at 0dBFS: +23dBu
Min output at 0dBFS: +4dBu (+1.8dBV)
o Factory trim:
Headroom: +18dB
Reference level: +4dBu = -18dBFS
Max input/output at 0dBFS: +22dBu
Trim accessed via 15-turn, rear-panel mounted potentiometer
Conversion
• A/D:
o Dynamic range (measured using -38dBu = -60dBFS input at 1kHz
(See Figure 6: A/D Dynamic Range on page 41)
118dB (A-weighted), 115dB (unweighted)
o Frequency response (relative to 1kHz):
+- 0.02dB, 10Hz to 20kHz @ Fs = 44.1kHz
+- 0.04dB, 10Hz to 40kHz @ Fs = 96kHz
o Phase response:
<0.1˚, 10Hz to 1kHz
-1.0˚ at 20kHz