With all due respect, Ron. You are more than welcome to think what you will. As you march on, you may discover that there is a whole other world of aspects that affect things beyond the basics mentioned.
Tom
Tom
Self noise due to triboelectric effects is actually a larger issue in most systems.
I changed my DAC because I went to a performance of Martinu’s second Nonet and when I played a couple of recordings it just didn’t image well enough. I was rather upset. The replacement DAC measures extraordinarily well with a very low noise floor. I was able to do a blind A/B test with the old DAC from the same streamer and, frankly, there was no comparison. Even more impressive was the depth of soundstage with some choral music (Josquin/Missa Hercules Dux Ferrarie). I was using Mogami balanced cables. I have some silver cables, but I’m not convinced they add anything.Good post! I think we'll have to define warmth to be more precise. Most think of warmth as an addition to the sound that is similar in character to even order harmonic distortion. At mid and high frequencies it indeed sounds subjectively warm, but this addition smears or hides detail, the effect is adding a "sameness" to every recording that makes timbre less distinct and reduces the spatial performance of the system. At low frequencies it "fills out" bass and again, sounds somewhat similar to harmonic distortion. This reduces the sharpness of transients and rounds off the leading edges of dynamic swings, and again reduces the distinct timbre of the instrument or vocal. It's not exactly the same as harmonic distortion or speaker/room acoustic issues, but there are definite similarities in how it's perceived.
Some examples... gold plating adds warmth that smears the sound and is the primary reason most high end connectors are not gold plated. You can't buy top-end Furutech in anything other than rhodium and there's a very good reason for this. The issue is most won't go "all-in" on using rhodium and the combination of rhodium with other plating materials is what causes problems and what some think of "the sound of rhodium". Many of my customers have gone all-in on using Furutech rhodium AC power products and in every case the artifacts described as the sound of rhodium simply go away. But warmth does go away too, for better or worse depending on the system, recordings listened to and personal preference. But if the goal is "high fidelity", imo gold plating has no place in a HiFi system.
Copper adds warmth. How much varies, and UPOCC copper is noticeably clearer and less warm than other kinds of copper. High voltage treatments can reduce warmth and increase clarity too. This is my primart criticism of commodity level copper cables like Belden, Mogami, etc... it's warm and smears/hides detail. It prevents a 3-D immersive soundstage from forming, which is imo the primary driver of subjective preference, and thus it fails to provide a "you are there" experience. Instead, you get the much more typical sound of the performance happening in your listening room, and a sameness to the spatial presentation across recordings. Again, if the goal is high fidelity, most copper cables have no place in a HiFi system, but there are some exceptions. OTOH, the best UPOCC silver is still better as far as clarity and resolution than any copper cable. UPOCC silver is expensive, so I always recommend prioritizing interconnect cables. It's much easier to get good results from copper PC and SC vs IC cables.
A certain amount of warmth is required to have realistic tonality though, but a lot of this is ideally gained from the reduction of noise that causes the subjective effect of brightness. The more of this kind of noise you have, the more warmth is required to balance it out and hide these flaws and prevent listening fatigue. Some things can add warmth without as much sacrifice in resolution as others too. I have a new cable that I've been meaning to introduce for a long time, but covid-related health issues have prevented that. The cable's main goal is a reduction of noise that is typical with conventional wire, and the end result is a total elimination of any hint of "the sound of silver" and a total lack of brightness. OTOH, it's not warm either, It's just very quiet, incredibly resolving, but it's also very low on stimulation as a result, so it doesn't sound as exciting as some might like. This may not be preferred on rock or electronica, but for acoustic music and very complex large-scale classical, it's on another level vs any other cable on the market.
Also, I 100% agree a good cable will lower the noise floor, but that is with many types of noise and artifacts, warmth is only one of many issues a good cable avoids adding to the sound.
With regard to exogenous noise? I don't think so.
How does this relate to -- if it does relate -- AC polarizing the atoms of a dielectic and the phenomena of dielectic absorption and relaxation? Is that a kind of friction?
I changed my DAC because I went to a performance of Martinu’s second Nonet and when I played a couple of recordings it just didn’t image well enough. I was rather upset. The replacement DAC measures extraordinarily well with a very low noise floor. I was able to do a blind A/B test with the old DAC from the same streamer and, frankly, there was no comparison. Even more impressive was the depth of soundstage with some choral music (Josquin/Missa Hercules Dux Ferrarie). I was using Mogami balanced cables. I have some silver cables, but I’m not convinced they add anything.
I can't say for sure, but it is unfortunately the case that interaction between the dielectric and wire creates noise on an ongoing basis. I think another possibility is the soundwaves produced by the speakers create vibrations in the cable that end up producing noise (due to movement between the dielectric and wire, the friction causes charge buildup due to triboelectric effects). In any case, it's an overlooked issue as wire needs to be electrically insulated and protected from corrosion somehow, and teflon is the lesser evil of all common choices despite it's unfortunate position on the triboelectric scale.
If you believe this, why do you own $4k/meter Cardas XLRs?If a good cable lowers the noise floor why isn't a balanced cable whose conductors are wrapped in a 100% coverage woven shield, with maybe all of that wrapped in an outer shield which is separately grounded, all we need?
Shouldn't the application of RF principles and grounding principles and Faraday principles to audio cables achieve imperviousness to noise without costing thousands of dollars per meter for the fanciest of high-end audio cables?
If you believe this, why do you own $4k/meter Cardas XLRs?
That's a very different question.If you believe this, why do you own $4k/meter Cardas XLRs?
If you believe this, why do you own $4k/meter Cardas XLRs?
Ron, you earned your money, spend it how you like.That's a very different question.
My post responded narrowly to a comment suggesting that imperviousness to noise is the most important objective of a cable. My post explored how imperviousness to noise can be achieved quite inexpensively and comprehensively.
I have never written that I personally believe that imperviousness to noise is the most important objective of a cable.
I have replaced some of my Cardas Clear Beyond RCA interconnects with Cardas Clear Reflection RCA interconnects specially ordered with rhodium-free connectors.
I replaced my 47' run of Belden 1192A interconnects with Cardas Clear Reflection RCA interconnects specially ordered with rhodium-free connectors.
My post responded narrowly to a comment suggesting that imperviousness to noise is the most important objective of a cable. My post explored how imperviousness to noise can be achieved quite inexpensively and comprehensively.
Definitely not the Cheng Chang school of cable prices...
Actually I started with, and listened for several months to, David's recommended Belden 1192A XLR for about $100. I prefer the Cardas Clear Reflection RCA.Definitely not the Cheng Chang school of cable prices...
Actually I started with, and listened for several months to, David's recommended Belden 1192A XLR for about $100. I prefer the Cardas Clear Reflection RCA.
Ron, how would you describe the sonic differences in your system?
Impossible to say as I changed amplifiers at the same time XLR --> RCA. I still have the Belden XLRs in the conduit alongside the Cardas RCAs.
As I have gone back-and-forth with things over the months I have the feeling that the Cardas is a little bit more natural. Maybe the Cardas has a touch more decay. Maybe the Belden was a touch rougher sounding.