What is the missing element?


My pc audio setup currently is as follows

PC (Lossless audio through Jriver) > V-link (first model) > Rega Dac > Jolida JD1501 > KEF LS50s

The Rega was probably the first component I bought that completely transformed the sound of my system. The difference it made was simply huge.

I then added the v-link to support higher resolution audio through the s/pdif connection. Again, the sound noticeably improved. The soundstage was bigger, and the music just sounded fuller. Without the v-link the music sounds quite a bit smaller through the usb input.

The Kefs were the next big leap forward for my system. I simply cant believe how big a sound these tiny little speakers put out.

Now, originally most of my listening was through the setup listed above. However, the addition of a thorens TD-160 has gotten me into vinyl in a big way and now I really don't like the sound of digital. By comparison it sounds like congested chaos, has a rough texture (especially noticeable in voices)and overall is just very brash sounding. I simply can not stand it at loud volumes. Nothing like the polite orderly smoothness I hear on vinyl which constantly has me turning up the volume.

I had all but completely switched to listening to music on my turntable while the rega was relegated to streaming pandora or youtube as background music and always at low volumes. Then, some time spent with a naim cd player reminded me just how good a digital source can sound. So my question is how can I bridge the gap? I have been reading a lot about jitter and I am wondering if that is holding the rega back. I've read that the v-link measures at right around 400ps while other digital transports like the audiophilleo measure well below 100ps. Would replacing the v-link with an audiophilleo or another s/pdif converter give me the sound I am looking for? Is the problem with the nature of computer audio itself and I should just be looking for a good CD player? I am slowly driving myself crazy over this.
128x128megido

Showing 8 responses by megido

Steve, you have been absolutely awesome. I genuinely wish I could afford your products but they are just out of my price range. I will definitely keep them in mind for down the road though.
I've read that the v-link 192 is much much better than the first generation in terms of Jitter measurements. One review shows it to be anywhere from 20ps to 160ps. Still way ahead of the nearly 400ps of the v-link I. I have read several sources that state jitter needs to be under 100ps to really be inaudible. They are discontinued but it might be worth tracking one down. They are significantly cheaper than the audiophilleo.
Thanks for the info. I'll definitely look into upgrading my usb converter first. I've played around with comparing wav and flac but at this point I can't hear any difference. Who knows, that may change once I get the jitter under control.
I'm certainly open to it if it will give better performance. I can't seem to find any jitter measurements on it though and see several reviews of it's s/pdif output being bested by usb converters such as the audiophilleo.
Well speak of the devil. I think my v-link just died on me. One second it was working fine and then the sound just disappeared. If I plug the dac directly into the computer through the usb I have sound. I think it new I was talking bad about it.
Thanks audioengr. I will certainly look into your advice. As to the whole usb s/pdif argument, I don't deny that as an output, s/pdif has some definite advantages over straight usb and I admit that I possess only the most basic understanding of how these systems work. As I understand it though, If s/pdif is being used on a source that already has high jitter, it will do nothing to reduce that jitter. It just wont add any more, at least not on the level usb would. I can't imagine a computer being a low jitter environment. One article I have read mentions the s/pdif out on a mac mini measuring at over 1000ps. I will definitely be researching the option of adding a straight s/pdif output from my computer because I like the much more affordable price but I also wont completely dismiss usb converters that are backed up by both professional as well as independent reviews and measurements.
Ok so this is interesting. My v-link that I had been using just up and died on me. So for the time being, I just plugged the dac directly into the usb port and to my surprise, in some ways it actually sounds better. Overall the sound is smaller and less dynamic and the imaging feels smaller BUT the voices are smoother and better separated from the music which sort of falls back into the background. Overall I would say the sound is less congested. Now I was poking around behind my tower today and noticed I actually have a s/pdif out on my motherboard. I know its not ideal but for fun I plugged into it. The difference between the s/pdif and usb are very subtle. Audibly they sound almost identical. The most noticeable difference I would say is the pacing. The s/pdif sounds a bit quicker? I think? As I said, its subtle. The upside is I can play my high res files again.

So here is my question, and this is primarily directed towards Steve. I noticed the synchro-mesh on your site. So re-clocking the digital signal from the s/pif vs a usb converter, would there be an advantage to one over the other?