I've got a 45tx but am not using external amplification. I love the way it sounds, but have not listened to the 950/amp combination so can't give a valid opinion as to which sounds best. There are several fairly long threads on the AVS Forum about the 45tx, with postings from several people...
Charles, It might help if you posted what features you're most interested in and what prices you've found on the 2 receivers, as well as how experienced you are with calibrating a reciever, and what speakers you'll be driving. I have the 45tx and like it very much. I especially like the...