Looking to change from Thiel 7's

I am going to get rid of the Thiels. I am not very happy with them. I have had to have the 7'2 rebuilt twice and the same with the 3.6's. I am running Classe Omega amps and pre amps with Cardas cables. I would like reccomendations on a good speaker that can handle the Omegas. I do like to turn it up at times ans am looking for something that still has the sound quality but also can take a beating from the Omega's.
Thanks for any thoughts.