Specifications

1.56
Operation Manual
© 2008 Prism Media Products Ltd
Revision 1.05Prism Sound Orpheus
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