Signal Format Converter RME ADI-642

RME ADI-642

The ADI-642, an 8-Channel format converter from MADI to AES and vice versa, is the latest addition to RMEs successful MADI series. Amongst other applications, the unit can serve as ideal AES/EBU frontend for the Hammerfall DSP MADI PCI card. Up to 192 kHz at 24-Bit are supported. Its most outstanding feature is an easy-to-use 72x74 routing matrix, which can assign an individual input channel to every single output channel, allowing free configuration of all 64 MADI channels and the 8 AES channels. Additional features include:

• Direct support for MADI Double and Quad Wire
• Automatic Delay Compensation when using more than one unit
• Analog 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

The compact unit with 19" width and 1 unit height serves as format converter MADI to/from AES (Schematic View). MADI handles 64 channels of 24-Bit audio at sampling frequencies up to 48 kHz, 32 channels up to 96 kHz, and 16 channels up to 192 kHz. All channels are transferred across a single cable, either coaxial (BNC) or optical network cable. In both cases, cable lengths of more than 100 meters can be achieved. The AES/EBU channels are provided via 4 XLR inputs and outputs, respectively. The ADI-642 accepts 56 channels and 64 channels as well as 96k frame at its input, and can be set to generate those formats at its output. This way the ADI-642 even serves as perfect interface between otherwise incompatible MADI devices.

Specs

• Input MADI: 1xBNC, 1x optical
• Output MADI: 1xBNC, 1x optical
• Input AES/EBU: 4xXLR, electrically isolated, highly sensitive input stage (< 0,3 Vpp), SPDIF compatible
• Output AES/EBU: 4xXLR, 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