DiGiCo launches SD Rack
The DiGiCo SD Rack is an I/O rack that offers multiple format sample rate conversion and allows up to 448 I/O, in any combination at 96kHz, spread across multiple racks.
While the SD Rack converters can operate at 192kHz, it also offers other sample rate options for specific outputs, meaning that the SD Rack serves as a multi-sample rate signal splitter. At 96kHz, the measured delay from the stage rack A-D, through a full channel with processing via the bussing with processing, back to the stage rack D-A is around 1ms.
Integrated with the Madi split is Gain Tracking, which allows another console or a broadcaster to take any of an SD Rack’s AES, analogue or Madi outputs at a stable level, irrespective of the microphone preamp settings on the SD7, covering a signal level range of +/-40dB. This can be turned on at any time, so the one pre amp for each physical input can have four independently controlled levels.
The SD Rack has a 56 input / 56 output arrangement, in blocks of eight, and can accommodate multiple digital formats.
All card formats are independently hot-swappable and auto-detecting using Micro Blaze technology. The Mic card user feedback is provided by multiple LEDs and any input can be split internally to any opposing output on the rack. Power supplies are also hot-swappable with all the main connections at the top of the rack. Finally, there is a full RGB backlit display that can also be used to control and programme the unit.
Also new from the manufacturer are the Little Red Box and Little Blue Box. These are two add on units that expand the connectivity of DiGiCo consoles.
DiGiCo’s Little Red Box is specifically designed to work with its SD9 digital mixing console and allows users to connect a D-Rack or a Madi Rack (DiGi-Rack or MiNi-Rack) to two SD9s. The main console controls all gains, as well as outputs on the rack, whilst the secondary console acts as a ‘receive only’ module for the inputs, allowing users to share a rack and operate either Front of House or monitors. The Little Red Box is powered via USB, with a second USB port acting as a ‘thru’.
The Little Blue Box allows users to connect an SD9, D-Rack and Madi console (SD8, SD7 or D-Series), allowing users to share a D-Rack between two or three consoles. The SD9 / Madi switch allows users to select between the SD9, or whatever console is plugged in to the Madi connector to control the D-Rack. The Console RX. Auxiliary output is designed to be the redundant run on an SD8 or SD7. Alternatively, it could be split off to another console with one SD9 using a Cat-5 connection and one Madi pair for the SD8. The Little Blue Box is powered via USB, with a second USB port acting as a thru.
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