if you have been reading good reviews about those converters then that is a good thing. The D/A and A/D converters are separate from SPDIF. If memory servers me correctly, SPDIF is a protocol for transporting data (in this case audio data) while keeping it in the digital domain. No conversion takes place from when the data stream leaves your virus to when it enters your computer for processing. On the other hand, when you use the analog outs on your virus and want to get that data into your computer, it must be converted into digital data in order for your computer to understand it. This is the Digital to Audio conversion (D/A). Once that data is in your computer and you have processed it, you will probably now want to hear it - it must therefore be converted back into the analog realm - this is the Analog to Digital conversion.
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