Yes, digital cables matter too


On a suggestion from another Agoner, I recently spent a fair bit of time sorting out the coaxial cable situation connecting my Bluesound Node (gen 3) and my Chord QuteHD dac.  I ended up enlisting outside help, but I learned quite a bit, and I am certain my system will be in a much better place as a result once I pull the trigger on one of the cables evaluated.

I went into a local dealer to buy a different item and mentioned in passing I was interested in trying a different digital cable, and he immediately handed me three and told to take them home and try them out.  My initial impressions were so positive I went to another local dealer and they handed me another five cables to try.  Combined with two coax cables I already had at home, that was a total of ten new and used cables priced from $25 to $1,500 to compare. Cables were: Pangea Premier Digital, Blue Jeans X ‘Better’, DHLabs Silver Sonic, naim DC-1, Chord Shawline, current and past Chord Signature Digital Super ARAY models, and Nordost Blue Heaven and Heimdall 2.

I have bought or assembled and evaluated a number of different PC, digital and analog cables, but until I got the Node, I had never really experimented with digital coax cables.  I have developed my own method for comparing cables that includes making sure all cables have been played recently in my system for st lesst a day, and then listening to a few cuts of various genera and styles of music with each cable and taking general notes.  I enlisted my son who has a very good system and good listening skills for blind testing a few of the cables.

I will touch on some if the highlights here.  

First, I have never listened to either Chord or Nordost cables in a controlled context, and at least for their digital offerings, I am impressed.  I had thought that my DHLabs Silver Sonic coax cable sounded pretty good, and it is often recommended as a good budget cable, but it was left a little bit behind by most of the others I tried in my system.

Second, some of these cables sounded dramatically different, and you get what you pay for.  My son easily identified as his favorite cables the two most expensive cables tested in a blind listening.  The amount of detail and nuance on offer made that result a near certainty.

Third, putting these high quality cables between the latest iteration of the Node and the Chord dac indicated how good the Node functions as a server for HD, 16/44 and mp3 files, and proved to me that digital cables make a big difference in this context.

The lower level Chord Shawline and Nordost Blue Heaven are both lovely cables.  The Shawline is balanced with good spatial detail and broad soundstage.  The Blue Heaven is super musical with great PRAT, an emphasis on leading edges and a lower center of gravity.  Of the two, there’s a bit more detail on offer from the Shawline. Compared to my Silver Sonic, both had less grain, sounded more organized and less shouty.  Either would have been an improvement, and I probably would have bought the Shawline if I hadn’t listened to cables further up both lines.

The naim DC-1 is a nice cable and a slight step up from the Shawline and Blue Heaven in terms of spatial resolution and detail, but interestingly, the naim wire had less PRAT and drive than either of the Nordost products.

The Nordost Heimdall 2 is a really lovely cable, similar PRAT and flow as the Blue Heaven, but more high frequency information, better tone, oodles of detail and very accurate placement of instruments and voices in the sound stage, all without sounding lit up or over the top.  It took this cable a few hours of playing to get to this point.  When I first dropped it in, it sounded a little thin.

The Chord Signature Super ARAY is also a great cable.  My son in the blind listening described it as not quite as punchy on leading edges as the Heimdall 2, but he felt the midrange was to die for, and this cable did voices better than any other cable in my test.  Very good tone, and detail and spatial resolution were also convincing with this cable.

One surprise in my listening was the Blue Jeans digital cable made specifically for Hawthorne Stereo.  At just shy of a hundred bucks, this was a very good deal.  It lacks the PRAT of the Blue Heaven, but it was smooth, good tone, sound stage and separation and bass definition.  The treble is a bit tipped up, but no jitter glare.  It doesn’t set a foot wrong, and especially for the price.  I did have trouble getting the RCA connectors to grip the socket on the Node, and the cable is stiff, which didn’t help.

So, in conclusion, yeah, trying different coax cables with the Node was a real ear opener.  When I first thought about upgrading my coax cable, I never considered spending up to half of the combined value new of my streamer and dac, but now I plan to buy one of the more expensive cables I tried, because after listening to them in my system, there is no going back.

kn

Ag insider logo xs@2xknownothing

I have some Nordost cables that're a tier up from those and I can appreciate the way you describe the character. What I've been told is that their technology lets whatever components you've chosen to really come thru. 

So if you've chosen well, they're gonna blow you away with what they reveal. And if you've chosen poorly, it'll let it come thru also and will reveal the lack of synergy in your system thru hardness or a fatiguing sound, various ways.

And once you hear your system come together you'll understand the difference.

My power reconditioner, it's a P15, which was my final piece truly brought everything into focus. It was like layers upon layers were revealed. It was very very fine, but striking in effect.

In my own system, it's my belief that the Nordost cables sort of allow whatever music is coming thru the system, to present itself extremely naturally, if you will.

That's my experience.

Thanks for all the feedback folks.  It was a lot of time, but not all work;-)

@baylinor interesting comment on the Node not clocking the USB output.  I use an iFi iPurifier 2 at the coax input into my Chord dac to reclock the Node output, and it makes a big positive difference.  As a control. I took the iPurifier out of the circuit for the side by side cable comparisons, but put it back in for just listening to music and it improved the performance of all the coax cables in my system. 

I cannot use USB out of the Node because my SSD drive is using that port so I can use the Node as a server.

Digital cables usb, Ethernet cables IHave documented changes ,improvements as they breakin , being only 5 v as many mfg have said I feel between 200-250 hours is when it’s finally settled in well  even Ethernet cables can be a nice improvement 

And a bunch  of other things such as a decent linear power supply  on your modem- router combo , if you have single units get rid of the,

I bought the newer motorola 8702,whaich has the latest docsis 3.1 older 3.0 

pare 4 x slower  and excellent wifi for your TVs 

Digital cables usb, Ethernet cables IHave documented changes ,improvements as they breakin , being only 5 v as many mfg have said I feel between 200-250 hours is when it’s finally settled in well  even Ethernet cables can be a nice improvement 

And a bunch  of other things such as a decent linear power supply  on your modem- router combo , if you have single units get rid of the,

I bought the newer motorola 8702,whaich has the latest docsis 3.1 older 3.0 

pare 4 x slower  and excellent wifi for your TVs 

@knownothing :

Thank you for sharing, it was very interesting. My question would be: was there any difference in the length of the cables you tried? If yes, could you observe any correlation between the sound quality and the lenght of the cables?

I have very limited experience with digital coax cables, but when I did some research, it appeared to me that people tend to like cables of 1.5 m. In those days, I was using a 0.5m Blue Jeans cable, and since it is really cheap, I thought I would just try the 1.5m version of the very same cable (same cable, same Canare plugs, same seller), so that the only difference should be the length between the two.

In my system too, the 1.5m cable easily outperformed the shorter one : it was more balanced, more relaxed, and I could hear better spatial separation of the instruments.

As for the importance of the digital cables, I'll share this little anecdote. With two of my friends, we have compared our DACs recently, using the host's digital IC cable. We could hear clear differences between the 3 devices, but at the end, I proposed that we could try my 1.5 m BlueJeans cable as well, just to see how much the cable mattered as opposed to the DAC. We all agreed that the difference was at least as substantial between the two cables as between any of the DACs we auditioned, and we also agreed that the 1.5m cheap cable was way better than the shorter one (roughly four times the price...). Of course, there we were comparing pears to apples, because ideally we would have had to compare two cables of the same length, but alas, that's what we had. It was still an interesting experiment.