Best rock/jazz speaker under $10k used


What speaker under $10k used can rock hard but also bring out the best in jazz voice? I love the sound of planars for voice, but I sometimes I really want to shake the walls and bring out the best in a power chord. Opinions?
gene_nj
Rebuilt Apogee Duetta Signature......under $10,000. $1,000 broken, and $5,000 rebuild.

Good to go at $20,000 and above.

Dave
After all the suggestions & recommendations are all in. The next thing to do would be to listen to most of them with your favourite cd's and head to the authorized dealer.
Nothing beats an actual in store demo.
good luck.. lots of great choices out there.
I would also like to add, its probably best to get a speaker that is a good all-arounder rather than a specific speaker for rock / jazz.
Our personal taste in music could evolve over a period of time.
All the best!