Good Speakers for Rock and Roll Under 15K

I think you might have missed the mark. Truly good or excellent speakers will sound good with any type of music. This of course assumes that the system can provide the needed power, and finesse. Brands that can do this: Dynaudio, Magico, Wilson, Magnepan, Raidho, MBL.. 

I have two models of stereo speaker because of how they present themselves [differently] overall, but any genre of music sounds fine on both. Rock and roll is a cakewalk for both. I’d personally avoid speakers touted to be good for one kind of music or another. Haven’t seen a system using 845 tubes specifically for rock - seems unusual to me, but maybe it’s not?

Good used pair of Radio Shack Optimus 1150 are the best!   Great for heavy metal stuff. 

If you’re still looking, there’s a pair of JBL 4315 on USAM for $6k. With the money you save you can fly to California to audition and pick up. These ROCK!!! and no horns. I’d buy them myself if I could. 

So you want to Rock-n-Roll

I use a mac tube preamp and 2 mac 2100's bridged with JBL 4435's