What do $2500 speaker cables sound like?

Depends on your system.

If your system has sufficient focus and is detailed enough, it will benefit from good cables. If not, it won't. Good cabling may make a mediocre system sound worse.

It's a pity we have a resident clown who creates new accounts over and over again for the sole purpose to irritate those of us who try and engage in honest debate.

I suppose this is the only way he can get some attention. 90 odd posts in 7 days. What a loser ...

" Malman, it’s not surprising that you are in the zip cord camp, IF your system is setup for listening as it is pictured in your system profile! "

One of the more amusing things to me with people that stop in from the Klipsch forum who followed the Super MWM build thread there is the expression on their faces when they first hear these while they watch the hair stand straight up on their arms at times. My goal was very high fidelity, great efficiency and to sit right next to the 32’ organ pipes or the Cellos or anything else, which it does quite well. It is like that sleeper daily driver hot rod that just waxed your $350,000 supercar. It may not look real pretty but it is all business. If you are near southern middle Tennessee you are welcome to PM me and stop in for a listen and see for yourself.

1+++++ for Silversmith Fidelium!!!
$1200 for an 8’ pair. $175 for bi wire adaptor.
I replaced $6K great cables that are now junk.
 Read that others have replaced $20-$30K cables in $600K and $1 million systems. Fideliums smoke all.
They were the biggest improvement in my system ever!
30 day return policy. I am only surprised that I am only the third to rave about them in this thread. 

To me its all sooo convuluded.

It seems an understanding of how the signal is lessened as it progresses thru a cable.

therefore, to minmize this, it requires great design to overcome complex tech challenges, and this costs money, otherwise we could all use telephone wire. 
So please focus on how the signal is impacted if not treated better via more costly cabling.