Posted by: chrisNova777
« on: February 24, 2018, 01:40:48 PM »connects via the nubus "pro tools audio card" (1991)
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http://answerbase.digidesign.com/detail.cfm?DID=54
Specifications for 442 Audio Interface.
The 442 I/O (MH031, 4x4) is the audio interface used in the original Pro Tools system (sometimes called Pro Tools II). It can also be used with an Audio Card (SA4) in a PTIII system to provide 4 additional inputs/outputs. (Requires a TDM single piggyback. Doesn't add DSP or voices.)
Analog Input/Output: Active Balanced XLR (pin 2 hot); +4dB level.
Analog I/O Impedance: Differential 200kohms, single ended 100kohms (input); 22ohms per leg (output).
Digital I/O: 16-bit, Active transformerless inputs (AES balanced, S/PDIF unbalanced), transformer coupled outputs (both).
AES pinout: Pin 1 gnd, pins 2 & 3 balanced signal (not polarized); impedance 110ohms.
External Sync: 256x sample rate (Super Clock) in/out, about 3 Vpp, BNC connectors.
NuBus Card Connector: 50-pin, SCSI2-type female.
Sample Rates: 44.1k or 48k.
Analog-to-Digital Converters: 1 Bit, Delta-Sigma, 64x Oversampling, 16-bit output.
Digital-to-Analog Converters: 18-bit, 8x Oversampling.
Operating Level: +4 dBu nominal (factory calibrated at 14dB or 18dB headroom).
Maximum Levels: +26dBu (input), +24 dbu (output).
Frequency Response: 20Hz - 20kHz +/-1db.
Signal-to-Noise Ratio: > 93 dB A/D, > 108 dB D/A (A Weighted).
THD + N: .005% A/D, .003% D/A.
Power requirements: 100, 120, 220, 240 VAC, 10-60Hz, 16 watts, auto-switching. The power supply is a Skynet model SNP 3034
Dimensions: 1U external rack mount device; 19" x 8.5" x 1.75".
ID:54 Created:12/03/1993
http://answerbase.digidesign.com/detail.cfm?DID=4836
DAE error - 9024 when launching Pro Tools 4.0 with a 442 interface attached.
DAE/DSI 2.95 are the last versions that support the 442 interface.
Pro Tools 3.2 is the last version that supports the 442 interface.
ID:4836 Created:01/18/2001
http://answerbase.digidesign.com/detail.cfm?DID=1077
Release dates and versions for Pro Tools.
ProDECK (recording/mixing) and ProEDIT (editing) were the original software applications that ran on the Pro Tools (442) hardware. The audio engines were built into these apps, there was no DAE before Pro Tools 2.0 software.
http://answerbase.digidesign.com/detail.cfm?DID=1082
Release dates and versions for Sound Designer II (SDII).
Sound Designer II (SDII) is an application that provides mono/stereo recording, editng and DSP. It requires an SAII, SAII/2, AMII, AMIII, 442, PT Project, or Disk I/O card (with appropriate peripheral).
http://answerbase.digidesign.com/detail.cfm?DID=53
Specifications for 442 Audio Card.
The 442 Audio Card (MH030, SA4, Pro Tools Audio Card) is the NuBus card used in the original Pro Tools system. It supports the 442 I/O or ProMaster 20 Interface.
Output: 4 channels of phase synchronous 16 bit audio.
DSP: 2 Motorola 56001 processors.
Connector: SCSI2 (50 pin).
NuBus power consumption: 9.55 watts.
DSP Clock Speed: 32mHz
Current Xilinx chip (U45): rev R03
ID:53 Created:12/03/1993
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