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Re: Why USB?

I think there is a definite advantage to the PC-->USB-->DAC, but if you introduce SPDIF with PC-->USB-->SPDIF-->DAC there is diminished benefit.

By eliminating SPDIF entirely from the chain and replacing it with USB, and use drivers that take advantage of the error checking/correction features of the USB bus, you can get a bit perfect transfer straight to the DAC.

With a hybrid USB/SPDIF approach, you can get the SPDIF source out of the PC so that the electrical noise from the PC (including power supply noise) is eliminated. Secondly, you can have a longer run of USB cable to the external USB-->SPDIF conversion device, allowing you to move the PC away from the stereo to minimize RFI, while keeping the SPDIF cable at an ideal low jitter length (I am told about 1.5-2 meters).



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  • Re: Why USB? - Lynn 16:04:35 10/19/04 (0)


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