Slow speaker cables?

Some of the best sounding amps have limited bandwidth. I don't understand how greater high frequency extension="faster". Is it not rise time that ultimately determines the perceived speed of the amp at the upper end of the scale? Not taking you to task Al.
As far as cable speed goes, I once picked up an old Yamaha TT that looked like an upper end model back in the 80's. Nice precision tone-arm. When I tried it out, I could hardly believe how sluggish it sounded. Also no extension either way. Almost like AM radio. When I stripped some of the fine wire in the tone-arm, it was so tarnished it was dark brown. I rewired it and it then sounded great. I may have answered my own question but I'm not sure how.

Thanks Al. That's very generous of you but I'm not about to put your insight to the test. It's off to Wikipedia!LOL. Not really. I'll need a week or so. But I was hoping Kijanki would have continued on another thread regarding skin effect. My research seems to corroborate my experience that replacing power supply wiring with 8awg, 500 strand is a significant overall improvement. My Acoustat TNT amps are already wired this way obviously in order to facilitate electrostats. But I notice a definite benefit even with dynamic speakers after upgrading to this wire. Apparently skin effect diminishes as the number of strands increases in a given gauge of wire until it's cancelled out, thus improving overall conductivity. The result is basically a bigger sound stage, better transients and damping factor. The amp just seems more open and free to perform. Can you concede any of this as factual or is it all in my head?

Al, does the fact that I'm hearing an improvement rather than just verifying one on instrumentation outweigh any negative impact on the amp? Doesn't the fact that we're dealing with wire no more than 6" long render inductance a non-issue? I'm guessing the Acoustat amps were built this way for the reason you mentioned. But also with the ability to drive low impedance loads such as the Acoustat speakers. So does it not stand to reason inductance is not an issue? BTW, the Acoustats are AB amps. Incidentally, so are the ones I've experimented with. They are also capable of driving low impedance loads.

Al, I was referring to your suggestion of a "downside by increasing induction" and it's possible result to the amp but that is now moot. Wiring I'm dealing with is the stock 12 and 14awg wire that virtually all the amps I have were built with. It's this wire that I've replaced with similar 8awg wire the stock Acoustat amps are built with. I've simply come to the conclusion that cost factor is the driving force behind building an amp just adequately rather than building it to reach it's full potential. There are probably lots of amp circuits capable of sota performance if given the correct internal accessories.