2. digital
  3. 181412-7564

AES/EBU vs XLR cables for digital connection

I did look to see if this issue was addressed in earlier discussions but couldn't find any specific information, so here's the story: I've ordered a Sonnet Hermes streamer to complement my Sonnet Morpheus DAC, and since the DAC doesn't have the I2S port (it's USB instead, though I understand I can change this if I want to), the best available connection will be via AES/EBU. I already have a pretty good XLR cable (Clarus Aqua) which I previously used for analog connection but I'm wondering if there's any advantage to using a true 110-ohm AES/EBU cable or if the standard XLR (the impedance of which I don't actually know) will work just as well. Have any of you done an A/B comparison between these two types of cable? Opinions are welcome. Thanks.

cooper52

Showing 2 responses by xboom

xboom
24 posts
 

The impedance matching is more for technical aspect of designing. The common analog XLR will still work, but may not sound as good.

 

The importance of impedance matching is to reduce signal reflections from both ends and would generate distortions & cause power loss to the signals. The DAC itself would internally reclock the data, and might not affect the sound after all.

 

Go try it. No worries, your equipment is not going to explode due to impedance mismatched of the XLR cables. HAHAHAHA~

xboom
24 posts
 

@blisshifi 

 

I wouldn't worry much about the digital source clock too much.  Usually the embedded clock in the sourrce would get extracted and stabilised, either with a PLL or some other secret sauce methods.

 

I don't think the results would be bad using a common analog XLR cable for digital AES input, but OP needs to try it to see if he/she accepts the output quality.

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