The 56TXi was also designed in cooperation with air studios. Of all the receivers I have heard in the Elite line, the 56 was for the money the best receiver I've heard. In the sound room I demoed in, they had all the usual, AVR-3805, RX-V2500, blah..... and the only receiver that flat out sounded better in my opinion was also the most expensive, a Yamaha RX-Z1. For 1500 bucks you can't go wrong.