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Which DAC am I using?

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I have a Yamaha AV and a Sony DVP-NS700V both having a 24bits/96Khz DAC. I have some confusion and hope someone would enlighten me.
1. If I uses optical or coaxial cable to hook both up, am I correct in saying I will be using the Yamaha's DAC?
2. If I uses normal RCA connection, i.e, Sony RCA output into Yamaha's RCA input, which DAC am I using?
3. If I were to use normal RCA 5.1 output of the Sony into the Yamaha's 5.1 input (it will then have to be switch to External Decoder setting), am I 100% correct in saying I will be using the Sony's DAC?
Thanks in advance.

Follow Ups:

Use the receiver's - Homer 20:19:57 03/13/02 (1)
The answer to this is complicated by the fact that many receivers digitize all analog inputs, and convert them back to analog, at the outputs. Therefore, your best bet is to use a digital connection, so that you know that there's only one conversion. This means using the optical cable, or a single RCA cable (probably labeled "digital" or "S/P-Diff", etc.). You should use a 75 ohm cable, for this. They're sometimes sold as digital audio cables, but a composite video cable will work just as well. While using a non-75 ohm cable may seem to work, it could cause problems with the signal that could result in errors or the amp to loose its lock.
The other advantage to using the Sony's digital output is that your signal won't be subjected to noise or distortion between the two devices or while it's being switched, inside the receiver.
Finally, always using the receiver's DACs, when possible, allows you to buy sources (i.e. DVD players, digital cable boxes, digital satellite, game consoles, etc.) without Dolby Digital or DTS decoders, nor do you have to worry about the quality of their DACs.
- Re: Use the receiver's - tourist 01:34:56 03/14/02 (0)
  Actually, I would much prefer to use the Sony's DVD's DAC because I found it to be superior to my Yamaha RX-V596's. I know that because when I use the Sony's 5.1 output (the manual says 24bits/96Khz and SACD are only available thro' these) and set the Yamaha to use "External Decoder", the sound seems better.
  So I was hoping that using Sony RCA output into Yamaha's RCA would still utilise the former's DAC. btw, does anybody know whether the RX-V596 convert the analog signal to digital with this setup?
  thanks

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