- DC-coupled, fully dual-differential, matched-FET, all discrete Class-A, analog signal path
- Ultralow noise 44.1kHz — 192kHz A/D/A converters
- Low-jitter internal clock source provides 44.1, 48, 88.2, 96, 176.4, and 192kHz sampling rates
- No capacitors in the signal path to degrade sound quality or introduce phase distortion
- 2 channel ADAT S-MUX I/O for 44.1 to 48kHz transmission of 44.1 to 192kHz audio
- 2 channel transformer coupled AES/EBU I/O (44.1kHz — 192kHz)
- Support for single- and dual-wire AES/EBU at 96 and 192kHz rates
- 2 Channel transformer coupled S/PDIF I/O (44.1kHz — 192kHz)
- Realtime transcoding between digital formats
- Independent digital and analog output routing
- 4 parallel 75 ohm BNC Word Clock outputs for jitter-free and reflection-free clock distribution
- 2 separate 75 ohm BNC Word Clock inputs capable of synchronizing to 1x house clocks while running at higher 2x and 4x sample rates
- Front panel Sync-Lock indicator
- Sturdy front panel rotary switches provide Clock, Sample Rate, Analog
- Output and Digital Output source selection
- Full 24-bit digital signal path throughout
- No digital processing of the audio signal
- Multi-segment LED bargraph metering on all analog inputs and outputs, with timed peak-hold digital overload (input) and digital peak (output)
- indicators
- Internal universal auto-sensing, filtered, multi-stage regulated power supply supports 100-240VAC and 50-60Hz power for trouble-free operation world-wide
- Rugged 1U rackmount steel chassis
- Analog
- Inputs: 2 XLR female connectors; DC coupled, dual-differential; Common-mode rejection ratio (CMRR): >90dB; Impedance: ~1.5k ohms; Maximum input level: +31dBu
- Outputs: 2 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
- 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: Headroom: +18dB; Reference level: +4dBu = -18dBFS; Max input/output at 0dBFS: +22dBu
- Trim accessed via 15-turn, rear-panel mounted potentiometer
Conversion
- A/D: Dynamic range (measured using -38dBu = -60dBFS input at 1kHz, 118dB (A-weighted), 115dB (unweighted); Frequency response (relative to 1kHz): +- 0.02dB, 10Hz to 20kHz @ Fs = 44.1kHz; +- 0.04dB, 10Hz to 40kHz @ Fs = 96kHz; Phase response: <0.1 degrees, 10Hz to 1kHz, -1.0 degrees at 20kHz; Residual noise (200Hz-20kHz): < -145dBFS (-123dBu); THD+N (measured at 1kHz): -110dB, with +4dBu input, -114dB, with -10dBu input
- D/A: Dynamic range (measured with -60dBFS = -38dBu output at 1kHz, 122dB (A-weighted), 119dB (unweighted); Frequency response (relative to 1kHz): +- 0.03dB, 10Hz to 20kHz @ Fs = 44.1kHz, +- 0.04dB, 10Hz to 20kHz @ Fs = 96kHz; Phase response: <0.5 degrees, 10Hz to 1kHz, -10 degrees at 20kHz; Residual noise (200Hz-20kHz): < -145dBFS (-123dBu); THD+N (measured at 1kHz): -98dB, with +4dBu output, -103dB, with -10dBu output
Clock
- Sample Rate (internal): 44.1, 48, 88.2, 96, 176.4, 192 kHz; 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
Digital
- 2-Channel S/PDIF; Dual stacked RCA; Unbalanced, transformer driven output; AC coupled input
- 2-Channel AES/EBU: Transformer isolated, balanced XLR (x4), Single wire and dual-wire modes (for sample rates above 48kHz)
- AES/SPDIF input bits: SCMS: Ignored; Preempahsis: Ignored; Professional/consumer: Ignored
- AES/SPDIF output bits: SCMS: Not set; Preempahsis: Not Set; Professional/consumer: Set to Professional
- 2-Channel ADAT Optical: Dual incline optical TX/RX (reinforced)
Physical
- Dimensions: (19" W, 1.75" H, 12.5" D) 1 RU standard 19" rack mount chassis; 11-1/2" depth behind front panel; 1" front panel clearance; 17" chassis width
- Thermal: 0 degrees C to 50 degrees C
- AC Line: ICE pin power (safety ground ties to chassis at entry point); 100-240VAC, 50-60Hz, auto-sensing; 40W