My first choice would be to look at good used equipment. As of right now on Agon are several nice pieces such as an ATI AT3007 ,B&K REFERENCE 200.7 ,KRELL KAV500, and a PARASOUND A51. These are just few amps that I would consider. You should also look at various forum classifieds. If I were to look at new I would try out the Emotiva XPA-5 as they have 30 day trial period. Hope this helps.