This Multichannel Audio Digital Interface offers format conversion from MADI to ADAT and vice-versa. The ADI-648 thus combines the world’s most successful multi-channel interface with the professionals’ exclusive high-end interface. MADI offers 64 channels of 24 bit audio at up to 48 kHz sample rate, and 32 channels at up to 96 kHz. Transmission happens over a single line, either coaxial with BNC connectors or fiber optic (option.) In both cases the cable length can be more than 100 meters.
The MADI channels are transferred from and to 8 ADAT optical inputs and 8 outputs via TOSLINK. Furthermore, the ADI-648 contains an easy-configurable 8-channel 16x16 Matrix Router. Any of the outputs, which are divided into 8-channel blocks, can be fed from any 8-channel input block, both on the ADAT and the MADI side. With this, there is not only free routing within the M-A and the A-M conversion, but also splitting and routing within the same format. An 8-channel input block can be routed to any number of output blocks in parallel. If the optional optical MADI-I/O is included, the MADI signal is present on both the coaxial and the optical output. Some application examples:
Managing long distances with a single cable ADAT breakout box for devices with MADI interface Connecting MADI-based equipment to RME’s Hammerfall series ADAT optical patchbay and router MADI coaxial / optical or vice-versa converter and splitter MADI redistributor, patchbay and router
The ADI-648 is compatible to all forms of increasing the sample rate (Double Speed.) It supplies word clock in single or double speed, distributes 96 kHz signals in Double Wire mode into the MADI data stream or per Sample Split (S/MUX) to the ADAT ports, but is also capable of double MADI rate (96k Frame.) And of course multiple devices can be cascaded and synchronized sample-accurate using word clock.
RME Audio ADI648
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