Data Conversion Systems DCS VIVALDI DAC User Manual
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dCS Vivaldi DAC User Manual Software Issue 1.0xAugust 2012Filename: Vivaldi DAC Manual v1_0x.docx Page 21 English versionREAR PANELJ K L M --N-- --O-- P Q V------R------ S T U WFigure 7 – Rear panelAnalogue OutputsThe unit features independent Balanced Outputs (J) on XLR connectors and Unbalanced Outputs(K) on RCA connectors. The Left channel outputs are in the top row and the Right channel outputs areon the lower row.Our Balanced Outputs are intended to beconnected to true balanced inputs only. They areelectronically balanced and floating, so theybehave like an audio transformer. Thisarrangement enhances the rejection of hum andinterference picked up by the cable when usedwith a true balanced input.Most other DACs use a much simpler circuit thatdoes not offer the same level of performance.! Some amplifier manufacturers provide unbalanced inputs on XLR connectors by leavingpin 3 floating. This arrangement does not work correctly with a floating output stage,resulting in extra noise, unstable signal levels and a “thin” sound. If you want to use theVivaldi DAC with this type of input, link pin 3 to pin 1 in the cable at the amplifier end.In such cases, we recommend that you use the Unbalanced Outputs instead.AES Digital InputsThe AES1, AES2 (L), AES3 and AES4 (M) inputs can be used individually at sample rates up to192kS/s.If the Dual AES1+2 menu page is set to On or Auto, AES1+2 can be used together as a Dual AESpair at 88.2, 96, 176.4, 192, 352.8 or 384kS/s. AES3+4 behave in the same way if the Dual AES3+4menu page is set to On or Auto.Both Dual AES interfaces will also accept dCS-encrypted SACD data from the Vivaldi Transport andDoP data (DSD over PCM) from the Vivaldi Upsampler.! For Dual AES mode to work correctly, the source must actually generate Dual AES data,not just the same single AES data on 2 connectors! |
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