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The XLogic product range uses technology that is largely derived from the previous XL9000 J- and K-series large-format analogue consoles — the SuperAnalogue designs. Amongst the line up are several preamps, including the XLogic Channel, the 'E' Signature Channel, and the SuperAnalogue Mic Amp, as well as the G-series compressor and a multi-channel compressor. There is also an XLogic Alpha channel, a VHD preamp, and a collection of 'I/O Solutions', which includes various converters and digital interfaces.

However, the flagship of the XLogic range is undoubtedly the X-Rack: a modular 4U rackmounting chassis and power supply unit, which can accommodate up to eight modules. The feature that helps the X-Rack stand out from the crowd is SSL's famous Total Recall facility — the ability to remember control settings and help the user reset the unit to a previous state.

The X-Rack itself consists of a black, painted-steel case, with a permanent module installed at the right hand side, which is the power supply and Total Recall system. The back panel carries a mains inlet with retaining bracket for the IEC plug, a chassis-earthing post, MIDI In and Out sockets, a pair of nine-pin D-sub serial interface sockets (for daisy-chaining Total Recall data between multiple X-Racks and the AWS900 consoles) and a 25-pin D-sub socket providing access to the internal mix bus. A cutaway section of the rear panel reveals the interfacing associated with each module, which varies between XLRs and D-sub sockets, depending on the cards installed.

Currently, the X-Rack range has six modules: the XR621 Mic Amp, the XR625 Channel EQ, the XR618 Channel Dynamics, the XR623 Four Channel Input module, the XR624 Eight Input Summing module, and the XR622 Master Bus module. Essentially, this is everything you need to build a couple of complete SSL channel strips, or a well-specified summing system, or some elaborate signal-processing tools — or a combination of all of the above.

The rack supplied for this review was fitted with all of the modules listed, in a rather strange combination that certainly proved the capability of the X-Rack, although I doubt many would want the same combination of modules if they were spending their own money! There are obvious candidates for future additional modules: an A-D converter would be one, and perhaps a remote-controlled monitoring section would be another, but the existing collection already caters for 99 percent of anyone's requirements very well indeed.