What Speaker are Great for Rock and Roll $5K-20K

He's going to love the talons. Just tell him to take the time to listen to them for a while. It takes a long long time to get used to their sound. They sound different from most other speakers, but once one gets accustomed there's no turning back!

For rock...there is no need for 5k speakers...let alone 20k...but if you want to spend that kind of money...Snell or Dunlavy would come to mind...Klipsch are very efficient...but for critical listening ...they are very "boxy"...Axiom makes a very highly reviewed top of the line tower with multiple drivers that is very affordable....

Hi-end purists would disagree...but Paradigm Reference series towers...such as the 100...are very good for rock...and their out of box imaging is good enough for classical,jazz,etc...a bit "hot" in the treble...but a very good all arounder with deep, clean bass....

Avalon Eidolons or the Opus

I definitely , 200%, agree with Phasecorrect!!!!