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-   -   Spdif out from Sound Card to Analog input on Stereo (http://forums.techgage.com/showthread.php?t=4237)

cb 10-19-2008 03:53 AM

Spdif out from Sound Card to Analog input on Stereo
 
I have recently purchased a Asus Xonar DX2 and am looking at connecting the Spdif output to an analog input to my Cambridge Audio Pre Amp.
What converter would I need to allow this to work.
Any help would be appreciated
Thanks for your input.
Cb

Rory Buszka 10-22-2008 09:39 PM

CB, what you're suggesting won't work unless you have some device between the ASUS Xonar D2X's S/PDIF output and the preamp/processor unit performing the function of Digital-to-Analog Conversion (DAC), which reassembles the digital audio signal (a sequence of on-off data representing digital 1s and 0s) into an analog audio signal (where the voltage being carried in the cable actually tracks the audio waveform). There are a few standalone DAC devices in the high-end audio world, but not so many at the consumer level. Of course, you've got Cambridge Audio components, so you're likely not afraid to spend a little money, but some of these devices can be fairly pricey.

The good news is that you've already got a high-quality DAC built into your ASUS D2X sound card -- the D2X uses high-end Burr-Brown digital-to-analog converters, and can achieve a phenomenal signal-to-noise ratio of 118dB. So your best option is to use the D2X's own analog audio outputs to feed the Cambridge Audio preamp directly. Alternately, if your Cambridge Audio preamp can accept any more digital inputs, connect the D2X directly via a S/PDIF cable, whether optical or coaxial. And if not, see if there are any other sources (like a CD changer-player) that could be 'bumped' from a digital input to an analog input.

madstork91 10-23-2008 09:38 PM

and if that doesn't answer your question you can always go get a degree in electrical engineering.

Kougar 10-25-2008 03:52 AM

Quote:

Originally Posted by madstork91 (Post 27621)
and if that doesn't answer your question you can always go get a degree in electrical engineering.

:D

Yeah... what he said. :p

cb 10-28-2008 03:30 AM

Quote:

Originally Posted by Rory Buszka (Post 27607)
CB, what you're suggesting won't work unless you have some device between the ASUS Xonar D2X's S/PDIF output and the preamp/processor unit performing the function of Digital-to-Analog Conversion (DAC), which reassembles the digital audio signal (a sequence of on-off data representing digital 1s and 0s) into an analog audio signal (where the voltage being carried in the cable actually tracks the audio waveform). There are a few standalone DAC devices in the high-end audio world, but not so many at the consumer level. Of course, you've got Cambridge Audio components, so you're likely not afraid to spend a little money, but some of these devices can be fairly pricey.

The good news is that you've already got a high-quality DAC built into your ASUS D2X sound card -- the D2X uses high-end Burr-Brown digital-to-analog converters, and can achieve a phenomenal signal-to-noise ratio of 118dB. So your best option is to use the D2X's own analog audio outputs to feed the Cambridge Audio preamp directly. Alternately, if your Cambridge Audio preamp can accept any more digital inputs, connect the D2X directly via a S/PDIF cable, whether optical or coaxial. And if not, see if there are any other sources (like a CD changer-player) that could be 'bumped' from a digital input to an analog input.

Thanks for your help, I have decided to spend some more money and invest in a CD player that can accept digital in, convert and then send to a pre amp, costly but should work well.
\Thanks again.
cb
The asus xonar Dx2 analog outputs work pretty good as you mentioned.


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