Do I need an expensive digital cable?


I have been using a fairly inexpensive optical cable to connect my CD transport to my Moon 280D streamer. I was told that an SPDIFcoax cable would sound better. For an experiment I purchased an inexpensive Pangea coax cable. It didn't sound at all because its terminator ends did not fit snugly in my equipment. I consulted chatgbt who often gives me audio advice. It advised that for the short run of 1 meter, an RCA interconnect would work. It did. And sounded much better than the optical. Chatgbt said that RCA interconnect was good enough.

Now, there is a twist to this story that might make those doubters think twice. A digital cable carries packets of information that are rechecked to assure that the streamer is recieving correct information. There is the timing concern, though. But my Moon 280D has an asynchronous DAC with a clock as part of the DAC. Any information sent by my transport, whether it is clocked by the transport or not, will go through the Moon's asynchronous DAC's clock. So ;there shouldn't be a timing problem. Should there?

Can anyone make a case that I should buy a "better" coax cable?

audio-b-dog

... When we A/B cables or anything else, we listen very closely for minute differences we then exagerate in our minds. My bottom-line is this: Would I know the difference if I left the house for half an hour and came back to my stereo....

Simply put, I audition each cable and component for about 30 days. Why 30 days? Because that’s typically the manufacturer’s trial period.

I don’t do instantaneous A/B comparisons. Instead, I break in new components using my second or third system during the first week. After accumulating roughly 40–50 hours, I move them to my main system and may swap them every other day with the existing cable. During this process, I take notes while listening to familiar test tracks.

Human short-term memory is limited, so taking notes is essential. I also cross-reference my notes and revise them if needed.

I begin serious evaluation after 40–50 hours, even though some components (including cables) may require longer break-in time—up to 150–200 hours. That said, some cables, such as my I²S cables, seem to be fully broken in within that initial 40–50 hours. I’ve found that notes taken on different days tend to be more consistent.

Overall, this “every-other-day” approach helps me discern differences in a more reliable and repeatable way. I’m sharing this for reference—if the “half-hour” method works better for you, feel free to stick with it as long as it suits your listening process.

@lanx0003 

I think you're in a different league than I am. I really don't have the budget for more than mid-tier cable, which is what I now have. The sellers I'm familiar with won't lend out expensive cable unless they believe somebody would buy it if they liked it. I wouldn't. The used cable company will only credit a person with other cables.

Also, I don't have the time or patience to do the comparisons you do. It sounds as though you do the same kind of comparisons reviewers do. I would say I'm a mid-tier audiophile and you're a high-tier one.

Oh no, OP—sorry if I gave you that impression. I do spend a significant amount of time listening to my systems. As an engineer/project manager working on several CIP projects, my schedule can get quite stressful when deadlines approach. Music listening is how I relieve that pressure—it’s also my only hobby since I quit golfing.

The cables I own are, at most, $599, which I would consider mid-tier in today’s market. I don’t believe a good cable needs to cost that much, and I wouldn’t spend beyond that even if I could afford it. That said, analog interconnects seem to be an exception.  Anyway, good luck with your music listening.

 

@audio-b-dog 

There is no such thing as mid- or high-tier audiophiles, just some people who love (need) to look down their noses at others.

The impact on sound quality of speaker cables and analog interconnects is governed by science.

The impact of power cords, Ethernet cables, etc. is still governed by science, but the discipline involved is preponderantly behavioral psychology.