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Analog Line Inputs
Configuration: Electronically balanced, with fully-balanced analog signal path
Input sensitivity: Switchable ‘+4dBu’ (0dBFS=+18dBu) or ‘-10dBV’ (0dBFS=+6dBu)
Input impedance: 14.5kR
Unbalanced mode: Automatic
Total harmonic distortion: -117dB (0.00014%, -0.1dBFS)
THD+n: -111dB (0.00028%, -0.1dBFS)
Dynamic range: 116dB (-60dBFS)
Gain accuracy: ±0.05dB
LF roll-off: -0.05dB at 8Hz; -3dB at <1Hz
HF roll-off: fs=44.1kHz: -0.05dB at 21.1kHz; -3dB at 22.0kHz
fs=48kHz: -0.05dB at 23.0kHz; -3dB at 23.9kHz
fs=96kHz: -0.05dB at 32.0kHz, -3dB at 47.9kHz
fs=192kHz: -0.05dB at 32.0kHz, -3dB at 78.0kHz
CMRR: 20Hz..20kHz: >70dB
Inter-channel cross-talk: 1kHz: <-140dB; 20Hz..20kHz: <-120dB
Inter-channel phase: 10Hz..5kHz: ±0.25o, 5kHz..20kHz: ±1.0o, 20kHz..50kHz: ±2.0o
Overkiller: Progressive limiter, auto-aligning, selectable per channel
Impact filter: High-pass filter, -3dB at 80Hz, 40dB/decade (selectable for channels 1-4; whether in line, mic or instrument mode)
RIAA de-emphasis filter: Response accuracy: ±0.22dB at fs=44.1kHz; ±0.14dB at fs=48kHz;±0.015dB at all other sample rates
M-S matrix: Allows direct connection of mid-side mics, or non-matrix mic-preamps (selectable for channels 1-4; whether in line or mic mode)
Microphone Preamplifiers
Configuration: Electronically balanced, with fully-balanced analog signal path
Gain: 10dB to 65dB in 1dB steps (0dBFS = -56dBu to -1dBu)
Gain accuracy: ±0.05dB
Input impedance: 5.5kR
THD +10dB gain: -116dB at -0.1dBFS (0.00016%)
+40dB gain: -110dB at -0.1dBFS (0.00032%)
THD+n: +10dB gain: -108dB at -0.1dBFS (0.00040%)
Equivalent input noise (EIN): +30dB gain: -128.5dBu (0R source); -126.3dBu (150R source)
+40dB gain: -130.9dBu (0R source); -127.6dBu (150R source)
+50dB gain: -131.2dBu (0R source); -127.7dBu (150R source)
+60dB gain: -131.4dBu (0R source); -127.8dBu (150R source)
LF roll-off: -0.05dB at 20Hz; -3dB at 5Hz
HF roll-off: As per Analog Line Input data (dependent on fs)
CMRR: 50Hz/60Hz: >110dB at all gains
1kHz: >100dB at all gains
20kHz: >90dB at all gains
Phantom power: +48V, switchable per channel
Instrument Preamplifiers
Configuration: Unbalanced, high impedance buffer
Gain: 10dB to 65dB in 1dB steps, 18dB pad (0dBFS = -38dBu to 17dBu)
Gain accuracy: ±0.05dB
Input impedance: 1MR
Analog Line Outputs
Configuration: Electronically balanced, with fully-balanced analog signal path
Output amplitude: Switchable ‘+4dBu’ (0dBFS=+18dBu) or ‘-10dBV’ (0dBFS=+6dBu)
Output impedance: 100R balanced, 50R unbalanced
Unbalanced mode: Automatic, with bootstrapping level compensation
Total harmonic distortion: -107dB (0.00045%, -0.1dBFS)
THD+n: -106dB (0.00050%, -0.1dBFS)
Dynamic range: 115dB (-60dBFS)
Gain accuracy: ±0.05dB
LF roll-off: -0.05dB at 8Hz; -3dB at <1Hz
HF roll-off: fs=44.1kHz: -0.05dB at 21.4kHz; -3dB at 22.0kHz
fs=48kHz: -0.05dB at 23.2kHz; -3dB at 23.9kHz
fs=96kHz: -0.05dB at 32.0kHz, -3dB at 47.8kHz
fs=192kHz: -0.05dB at 32.0kHz, -3dB at 76.0kHz
Output balance: >50dB
Inter-channel cross-talk: 1kHz: <-135dB; 20Hz..20kHz: <-120dB.
Inter-channel phase: 10Hz..5kHz: ±0.4o, 5kHz..20kHz: ±0.25o, 20kHz..50kHz: ±0.5o.
Digital Input
Formats supported: S/PDIF (RCA or TOSlink), ADAT, ADAT SMUX (TOSlink)
Sample rates supported: S/PDIF (2 channel): 44k1, 48k, 88k2, 96k, 176k4, 192k
ADAT (8 channel): 44k1, 48k; ADAT SMUX (4 channel): 88k2, 96k
Channel Status: Ignored
Word-length: 24 bits
AES3 operation: Via S/PDIF RCA, using XLR-RCA adapter (supplied)
Sample-rate converter (SRC): Selectable at S/PDIF input, allowing input at any sample rate
Bit-transparency: Maintained (allows recording of Dolby or DTS streams)
Digital Output
Formats supported: S/PDIF (RCA or TOSlink), ADAT, ADAT S/MUX (TOSlink)
Sample rates supported: S/PDIF (2 channel): 44k1, 48k, 88k2, 96k, 176k4, 192k
ADAT (8 channel): 44k1, 48k; ADAT S/MUX (4 channel): 88k2, 96k
Channel Status: Full implementation, Consumer (S/PDIF) or Professional (AES3)
Word-length: 24 bits, or reduction to 16 bits using flat TPDF dither or Prism Sound SNS (Super Noise-Shaping - four alternative shapes available)
AES3 operation: Via S/PDIF RCA, using RCA-XLR adapter (supplied)
Sample-rate converter (SRC): Selectable at S/PDIF output; output rate can be referenced to Wordclock, DI or local clock at 44k1, 48k, 88k2, 96k, 176k4 or 192k
Bit-transparency: Maintained in 24 bit mode (allows playback of Dolby or DTS streams to external decoder)
Synchronization
System sample rates: 44.1kHz, 48kHz, 88.2kHz, 96kHz, 176.4kHz or 192kHz
Synchronization sources: Master: Local, Wordclock, DI (S/PDIF input) or ADAT
Slave: 1394 bus master (another FireWire interface or host computer)
Local clock accuracy: +/-10ppm
Jitter rejection: 60dB/decade above 100Hz
Internal mixer delay:
(total analog in to out) 44.1k: 0.57ms; 48k: 0.52ms; 88k2: 0.20ms; 96k: 0.18ms; 176.4k: 0.09ms; 192k: 0.08ms