RME ADI-642 Digital Audio Converter

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An 8-channel digital audio converter designed for converting MADI to AES and AES to MADI


The RME ADI-642 is an 8-channel digital audio converter designed for converting MADI to AES and AES to MADI. It can be used as a flexible format converter or a digital AES front end for MADI audio interfaces.
The RME ADI-642 offers full 192kHz and 24-bit operation and uses a powerful and easy to use 72×74 routing matrix allowing for the routing of input channels to every single output channel for completely free configuration of all 64 MADI and 8 AES channels.
Housed in a compact 1U rack, the ADI-642 can operate extreme cable length of 100m. AES/EBU connections are provided over 4 XLR input and output. The unit can work with 56 or 64 channels as well as 96k frame inputs and can use these to generate those formats at its output. The ADI-642 can also be used as a bridge between two incompatible MADI devices.
Using RME’s SteadyClock technology ensures that the ADI-642 can operate without external clock while providing stellar clock quality in all situations. Its highly efficient jitter reduction is also perfect to improve and refresh any AES and Word Clock while its Intelligent Clock Control will keep the last valid sample rate in case of input signal loss.
An analogue monitor stereo output operates at line level but can also be used as headphone out and can monitor any of the ADI642, 36 stereo input channels (72 mono inputs)
RME ADI-642 Converter Main Features:

Direct support for MADI Double and Quad Wire
Automatic Delay Compensation when using more than one unit
Analogue stereo monitor output, up to 192 kHz
Detailed status display for MADI and AES
Completely remote controlable via MIDI
Transfer of MIDI data via MADI
SteadyClock for maximum jitter reduction and clock regeneration
Input MADI: 1 x BNC, 1 x optical
Output MADI: 1 x BNC, 1 x optical
Input AES/EBU: 4 x XLR, electrically isolated, highly sensitive input stage (< 0.3 Vpp), SPDIF compatible Output AES/EBU: 4 x XLR, transformer balanced, 5 Vpp Input word clock: BNC, Signal Adaptation Circuit (functional from 1.2 Vpp) Output word clock: BNC, low impedance driver stage, 4 Vpp into 75 Ohms, short-circuit-proof MIDI input and output: via two 5-pin DIN jacks Sync sources: MADI, AES, word clock, internal Varipitch: by input signal or word clock Sample frequencies: 44.1 kHz, 48 kHz, 88.2 kHz, 96 kHz, 176.4 kHz, 192 kHz, variable (sync/word clock) Sample rate range: MADI: 32 - 192 kHz, word clock: 27 kHz - 200 kHz, AES: 28 kHz - 200 kHz Jitter: Internal clock < 1 ns, external clocks < 1 ns Jitter suppression: >30 dB (2.4 kHz)
Jitter sensitivity: all PLLs operate error-free even at 100 ns
Power supply: Internal switching mode PS, 100V – 240V AC, 20 Watt



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