Monitor; Meters; Dsp - Prism Sound ADA-8 Operation Manual

Prism Sound ADA-8 Multi-channel A/D D/A Converter

8.3 Monitor

Two-channel, analogue and digital, assignable to either Path, by channel pair or mixed
Function keys for volume, mute, mono, channel-swap and phase-invert
Analogue outputs:
Electronically balanced on RCA/phono connectors
Output impedance 50Ω
Four software-controlled output ranges: 0dBFS = +15,+18,+21, or +24dBu
Absolute gain accuracy: ±0.05dB
THD+n: (997Hz, -1dBFS) -101dB (0.0009%) rms unweighted
Dynamic range: (997Hz, -60dBFS) 105dB rms unweighted
Channel separation: 1kHz: >120dB; 20Hz..20kHz: >105dB
Headphone output:
6.3mm stereo jack, output impedance 114Ω
Four sensitivity ranges, max 4.7Vp-p
Digital output:
AES3-id / S/P-DIF (jumper-selectable on Utility Module, see volume 3),
24-bits, channel status as defined by firmware revision (see volume 2).

8.4 Meters

Eight-channel bargraph, plus two-channel digital readout, assignable to either Path
Manual hold function
Overload indicator threshold: 0dBFS or –0.05dBFS
Assignable 'Alert' function

8.5 DSP

Standard processes:
'Encode' for digital outputs:
Wordlength reduction: Flat dither, or one of
Prism 'MR-X' mapping: 20-bit/24-bit/hi-rate on 16-bit tracks,
Prism 'DRE':
'Decode' for digital inputs:
Expansion processes (with additional DSP Module): as detailed in the Firmware Reference
© Prism Media Products Limited, 2002
Operation Manual - Revision 1.00
four Prism 'Super Noise Shaping' (SNS) algorithms;
Intelligent 'auto-dither-defeat' system
24-bit/hi-rate on 20-bit tracks
20-bit dynamic range on 16-bit tracks, or 24-bit
dynamic range on 20-bit tracks, without loss of tracks
Prism 'MRX' and 'DRE' as above
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