castleofargh
Sound Science Forum Moderator
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- Jul 2, 2011
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I agree about direct interaction vs forum. Things tend to be more relaxed overall IRL. Although, nobody got punched through the web.^_^Honestly this cable debate has gone on for a lifetime of time. There is pretty much no end in sight, not in our lifetimes anyway. There is really no reason to get emotional about it, or to write insults or criticisms to another member. We are all in this audiophile thing together. Have fun!
I’m sure if you came over to the house and visited me, the human ideas of comradely would surface and take over. This cable business would become a small or even a non existent issue. After dinner and a beer we could recoil into having fun with audio equipment!
You do understand that I have spent countless hours trying to get my head around this cable question, and I should be embarrassed to post here? Really? If anything this is the perfect place to share my opinion, that’s what the forums of Head-Fi are for. You don’t have to read what I post. Remember the simple cause is the greatest motivator in human emotion/psychology. That means a cause creates this force and creates drama. Maybe this is a holdover from human evolution, enabling the pack attitude in groups of humans to survive, and for good reason in our history. But it is not needed as much anymore, and shows up as a burden at times.
I even think the objective side is partially at fault for often ignoring some of the well understood possibilities because bad testing is so much more likely as an explanation. There is being statistically right, which we are, and there is being right about one specific case. And about that, we usually never know(because we're not the ones having those gears and that experience).
On the other hand, we have people who decide a sound changes with no objective evidence of it, just the feeling that it does, which as you know is a problem because humans are going to human and that includes a long list of mistakes and self delusions about reality.
So here is what we can consider:
-1 wire, and its 3 electrical characteristics, better modeled as series of short components with their own 3 electrical specs, but assuming we're not changing everything in a meaningful way each time we move the wire slightly(it does happen to matter a lot on a few cables, and I'd always suggest running away from that crap, period). In that system it's easy enough, for a given frequency, we have the amp, that wire, and the driver/load. Most of the time we count the wire as part of the load, but if it's about swapping wires, then the question of where we put wire in the calculations becomes relevant(depends if we're looking at changes from the amp or changed from the transducer). If we're not lazy, we look at both. We rarely do because we don't care much about the amplifier side until it reaches its own limits. That alone is an issue because obviously someone of an objective mind or just someone caring about fidelity and stability would try to avoid using an amplifier under conditions that might push it to its limit. For the rest of the population, do they even know when that can happen? I can just measure a few things and know if my amp is struggling at a given voltage into a given load.
-real situation, 3 or 4 wires, maybe even 5 wires for fun. Now we can start wondering about some interactions and how bad the insulation might be, how much the way the wires are breaded might affect the electrical properties. If there is a shield and who (almost arbitrarily for IEMs) decided where to connect it to the ground(one side, which one? Both side? Why? Nowhere, it's just a metal wrap for no clear purpose). That gets complicated fast and beside measuring stuff, I don't think it's easy to model more than straight flat cables. Most of the time this is irrelevant(because of the magnitudes involved), but when the load is ludicrously small and current flow gets pretty high(compared to voltage), then it can become audible as some form of crosstalk for example. And if the amplifier itself sucked in that variable, the total can become a clear sound difference for sure. That's one aspect we tend to straight up ignore on the objective side because again, we would tend to avoid getting into those circumstances, and we have no reason to seek cables that will be vastly different electrically from the default one. I haven't purchased any IEM going under 8ohm in years(well TBH I've sent back most of the IEMs I did purchase in the last years)? Yes, that means I'm avoiding a lot of the modern products, as extremely low impedance is now very common in the IEM market. WE on the more objective side, probably also wouldn't get an amplifier or DAP if it already sucks bad at dealing with crosstalk unloaded(the only spec we're likely to find online).
-contacts and plugs. Not all plugs are equal, On that I'm with you. We probably don't agree on why, but to me, plugs are usually more important than the wire. Good plugs from a brand you can trust and whatever wire at about the right gauge and right type for its given purpose, that tends to make a fine cable in my experience. It's good to have certain mechanical wire properties if we move the wire a lot or people walk over it, but otherwise that's basically my position on cables.
About the metal at the plug, I have to say that in my experience it rarely does much of anything. I only have one single exception, the default cable of the Sennheiser IE80(not the 80s that's back to using some yellow stuff that I imagine being gold plating or whatever). It's a metal grey color(no idea what's on the surface), and into almost all my DAPs, after a few days being plugged, something seems to oxidize between the plugs(or it has a magical ability to attract small dust?), and when turning the plug, it sings me the song of its cable people. In this case, static noises. I just have to pull the plug, rub it on my shirt, plug it back, and no more static noises when turning the plug, until next time. Now that's a sound impact from the metal of the plug that I fully recognize and dislike.
Otherwise... beside maybe some dimension differences not giving as good an electrical contact as it should(in turn that could increase the impedance and matter audibly in some extreme scenarios like high power or again, those damn extreme IEMs), I don't believe in the metal, and even less so the platting metal choice, to change sound. I just don't see how that could create an audible level of change unless one metal is made a copper+cardboard+sand alloy.
All in all, the sane thing to do, IMO, is to simply settle on a sound system and measure stuff. For big stuff that will be audible, a little mic+coupler should do it. It's also easier to try and translate into audibility. For smaller, more precise measurements, it would be better to go with some adapter that allows to measure at the IEM plug(without room and mic noise/disto). But then finding causal relation to something we might hear is probably more challenging.
So we're back to listening and listening conditions, the true reason this debate never ends. Because almost nobody does that correctly for cables. Can we even find 5 people on the forum who did an actual blind test with IEM cables where the volume was matched at the IEM itself, and the cables were swapped blind by someone else, without distinctive sound, touch, or noticeable cable weight or stiffness difference? I doubt it.
Maybe we need to come up with a rig where both cables are plugged to an adapter and someone controls the randomization(in a non-audible way, it can't just be a loud switch that goes back and forth, and the connections must really be cut between the cables, we can't just leave most wires connected and like, just cut one ground, because IDK what that could do electrically, probably not much, but why take a chance?).
Now what I do believe and, really, know to be true, is that not a single "yet to be discovered" electrical variable is causing whatever people hear or think they hear. Anyone going for that explanation has already lost the argument about audibility. Scientists aren't the type to just sit in front of something with consistent testable impact and ignore that it exists. If people could hear something beyond what can be measured, and it was clear they didn't dream it or hear it with their eyes, then they would have long come up with some placeholder name like they do in astronomy with dark energy, dark matter and all that crap. Something causes something else, and we don't know what it is => "dark something". That's just what they do.
We don't have any "dark something" equivalent for electrical wires, because we have no evidence of something happening that doesn't follow the known models. Audiophiles and some sighted impressions never have and never will qualify as evidence of something else happening in the wires, for good reasons. So let's just drop that hypothesis and the logical fallacy about anything being possible because we don't know everything.
