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The Quartet runs the Blackbird WTA filter and its four million taps. The computation is handled by five Xilinx FPGAs totalling 3,700 processing cores. The unit belongs to the Choral range.
On the digital side, the unit takes one galvanically isolated USB-B input, two optical inputs and two BNC inputs. Outputs comprise dual BNC up to 768 kHz, one optical and one S/PDIF. Two RCA inputs accept an analogue source, handled by a built-in Pulse Array converter.
The Quartet comes as two boxes, the processing electronics and its power supply. The latter is built to reject high-frequency interference. Each box measures 7.8 cm high, 33.5 cm wide and 15.2 cm deep.
A 108-bit lossless digital equaliser works across ten shelves, with a range of plus or minus 18 dB. Latency is programmable from 10 milliseconds to 3 seconds. Power consumption reaches 130 W in use and 20 W on standby.
Specific References
• Lower-dispersion higher-purity fiber
• Low-jitter (Digital Timing Errors)
• Precision Polished Fiber Ends
• 3 METER AND ABOVE IN-WALL Rated PVC
• 280 Narrow-Aperture Quartz (Fused-Silica) Fibers
• Low-jitter (Digital Timing Errors)
• Precision Polished Fiber Ends
• 3 METER AND ABOVE IN-WALL Rated PVC
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