Why does my DAC sound so much better after upgrading digital SPDIF cable?


I like my Mps5 playback designs sacd/CD player but also use it as a DAC so that I can use my OPPO as a transport to play 24-96 and other high res files I burn to dvd-audio discs.

I was using a nordost silver shadow digital spdif cable between the transport and my dac as I felt it was more transparent and better treble than a higher priced audioquest digital cable a dealer had me audition.

I recently received the Synergistic Research Galileo new SX UEF digital cable.  Immediately I recognized that i was hearing far better bass, soundstage, and instrument separation than I had ever heard with high res files (non sacd),

While I am obviously impressed with this high end digital cable and strongly encourage others to audition it, I am puzzled how the cable transporting digital information to my DAC from my transport makes such a big difference.

The DAC take the digital information and shapes the sound so why should the cable providing it the info be so important. I would think any competently built digital cable would be adequate....I get the cable from the DAC to the preamp and preamp to amp matter but would think the cable to the DAC would be much less important.

I will now experiment to see if using the external transport to send red book CD files to my playback mps5 sounds better than using the transport inside the mps5 itself.

The MPS5 sounds pretty great for ca and awesome with SACD so doubt external transport will be improvement for redhook cds


128x128karmapolice
@audioengr thank you. what would you recommend for a toslin-to-mini-toslink convertor? For compatibility with an airport express or chromecast audio
These are a dime a dozen.  Never seen anything but the generic ones.

It should not really matter because one should never drive a DAC with a Toslink anyway.  Too much jitter.  Go Toslink to a Synchro-Mesh and then a good BNC coax cable from Synchro-Mesh to the DAC.

Steve N.

Empirical Audio

If you don't notice a difference straight away and I'll give some of you two days time and it is not patently obvious to you that there is a massive difference then please take a tip from me and sell your stuff because you plainly cannot hear properly.

I agree, and they can stop posting drivel on these forums too. It's getting aggravating.

Steve N.

Empirical Audio

@audioengr

Drivel as in measurements showing the differences are insignficant? Also yes, you heard plastic optical cables as better sounding than glass because plastic ones do measure better. And also, yes, USB cables of shorter length measure better than ones or longer length, but also bargain bin USB and “audiophile-grade” USB measure near identically.

And again, any decent DAC will reduce jitter to at least below say -110dBFS, so all these differences before the DAC can indeed be ignored, unless you are cranking your amplifier above full scale.

And yes, I’ve used wire bough at Walmart and wire that was much more expensive, no difference. Getting a sufficient gauge and maybe twisted for decent runs are pretty much all that matters. And no, you don’t have to listen for days to begin to appreciate the difference, our recall ability is about 15sec to my knowledge, so if you can’t immediately hear a difference, than any difference you hear latter on is not real.

Just to point out for those that don’t know, there is $10,000 amplifier challenge for anyone who can differentiate between two amps that are level matched, operating at volumes with THD below 2%, amplifying linearly (no tubes or bass boost), etc. This has been going on for almost 30 years, and not a single person could do better than 65% accuracy (24 guesses). So if anyone believes they can hear a difference, here’s your chance to win $10K. Over a thousand people (of course the majority are fellow audiophiles) have taken it and all failed.
mxkmxcv
“And no, you don’t have to listen for days to begin to appreciate the difference, our recall ability is about 15sec to my knowledge, so if you can’t immediately hear a difference, than any difference you hear latter on is not real.”

>>>>I did not know that. Do you have anything to support the 15 sec rule? I swear my aural memory is a lot longer than 15 sec. Perhaps even weeks or months. Of course I might have a photographic memory.
Belden 4794R SDI cable from BlueJeans works very well for not too much money if you have BNC on at least one end an adaptor doesn't compromise thigs too much if you only have RCA on the other. It's a bit on the stiff side mind, you can't bend it too sharply. I used one in preferance to Chord Sureline or Fairway digital cables. Disc drive was Naim Core, DAC either Rega DAC-r or Chord 2Qute. Compared to the Chord cables it livened up the Rega and allowed some emotion to be heard from the rather sterile sounding 2Qute.