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Speaker cables made a difference (probably not what you think; looking for input)

phantomtofu

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I'm relatively new to hifi, and for the last year and a half I've been rocking a Wiim Amp with a pair of Starke V62 speakers (they were on clearance when I was looking to upgrade from a damaged soundbar). My very non-scientific take of the setup is that I got a great deal on decent affordable speakers, and they're held back a little by the amp. The V62s are practical for my household, as they have metal grilles that protect against our energetic cat (the source of the soundbar's damage).

This weekend I went to a few places to hear nicer systems - I wanted to get an idea of what I like to research future upgrades. I went to RBH and heard their SVTR/AX (and others). Very impressive in many ways, but not necessarily more enjoyable than my current setup. Took my wife to Best Buy to hear the KEF Blade 1 Meta and it was the first time she ever enjoyed listening to Pink Floyd. At a local dealer we listened to some Wilsons, Dynaudio, and B&W. Surprisingly, my wife was more into them than I was, and suggested the Wilsons aren't as visually ugly after hearing them.

(skip to here if impatient)
The dealer started to talk about cables, pointing at some complex monstrosities behind the higher-end systems. I reply that I'm skeptical of the difference in cables, and they offered to let me borrow their entry-level "good" cables. They're These 10 AWG cables from Transparent, and my existing cables are Crutchfield's standard 14 AWG cables. I gave it a shot.

As I've lurked this site (and others) for a while, I'm somewhat familiar with the pitfalls of A/B testing an "upgrade" component subjectively. I played 5 songs, alternating which cables were used first. I couldn't identify any significant difference. But my wife who has more sensitive hearing and was in the room (way off-axis, playing PC games and unaware of which cables were used at a given time) commented a few times and consistently preferred the Transparent cables.

The last song I played was one that for some reason has caused a scratchy/resonant sound from one of my speakers. The "what if you do-ooh" at 4:03 in Running Away From You by Sara K. No other song/content causes this. I swapped back and forth several times - the offending sound was gone with the Transparent cables, and persisted with the Crutchfields (swapped channels, too). I'm at a loss how this is the case. Any ideas?
 
Hey, welcome to ASR!

As you note there's no good reason to think the cables would make any audible difference, let alone that kind of difference.

If something was wrong with the Crutchfield cables (loose connection, significant oxidation) that could possibly explain it. "Cables don't make a difference", but if the cable is busted somehow, yeah it makes a difference.

But, the fact that there is a scratchy sound coming from only ONE speaker (on a vocal part) suggests something is wrong with the tweeter on that speaker. Did you try playing it back at different volumes to see if the scratchy bit got better or worse?

As for what your wife heard from the other room - too many variables. Could be caused by where you were standing.
 
Hey, welcome to ASR!

As you note there's no good reason to think the cables would make any audible difference, let alone that kind of difference.

If something was wrong with the Crutchfield cables (loose connection, significant oxidation) that could possibly explain it. "Cables don't make a difference", but if the cable is busted somehow, yeah it makes a difference.

But, the fact that there is a scratchy sound coming from only ONE speaker (on a vocal part) suggests something is wrong with the tweeter on that speaker. Did you try playing it back at different volumes to see if the scratchy bit got better or worse?

As for what your wife heard from the other room - too many variables. Could be caused by where you were standing.
Yeah, I reached out to Starke when I noticed it months ago and they sent me a new tweeter. I did some troubleshooting at the time and isolated the issue to the speaker. The scratchy sound (which I've only heard in that particular part of that particular song) was a little quieter with the new tweeter but not fixed. I only listen to the song for testing, so I let it be. The Transparent cable solved it, though. Can't come up with an explanation to the cable difference besides a significant change in the signal delivered.

I agree that there were too many variables for my wife's experience - she was in the same room but playing games while wearing open-back headphones.
 
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She was in the same room, but playing a game, and wearing open back headphones, and still managed to hear a difference between cables. :oops:

She sounds like a pretty remarkable woman.
I don't know.... Women can definitely pick up differences between cables but only if they are in the kitchen, I think this point was addressed by Floyd Toole in one of his texts
 
Yeah, I reached out to Starke when I noticed it months ago and they sent me a new tweeter. I did some troubleshooting at the time and isolated the issue to the speaker. The scratchy sound (which I've only heard in that particular part of that particular song) was a little quieter with the new tweeter but not fixed. I only listen to the song for testing, so I let it be. The Transparent cable solved it, though. Can't come up with an explanation to the cable difference besides a significant change in the signal delivered.

I agree that there were too many variables for my wife's experience - she was in the same room but playing games while wearing open-back headphones.
Do the cables use the same type of connector?

I'm wondering if there is something loose inside the speaker making the scratchy sound and using different connectors somehow blocks or inhibits that motion.

Partially fixing the sound by swapping a (supposedly) broken tweeter is quite odd and suggests it's actually a problem with the woofer, or a rattle/buzz issue in the cabinet somewhere.

Can you try isolating the frequency (or frequencies) that cause the scratchy sound using a tone generator like this? https://www.szynalski.com/tone-generator/ Then once you have that, you can mess with the gain and see if there's a specific threshold where it kicks in.
 
Back to the original problem:
Try it with a different brand of amplifier.
It is possible, but highly unlikely that a cable & speaker combination could cause an amplifier to ring or oscillate.
Not just the huge total cable capacitance problem.
Cyril Bateman(RIP) noticed other problems some 25 years ago.
 
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