K, welcome, and it's pretty much all good about the 53TX, especially at that price. I used to say more about the Pioneer Elites and their MCACC automatic room equalization, but then Yamaha and now Denon(3805)came out with equalization provisions which at least on paper were a little more advanced. Still, MCACC is helpful and the receiver in general is very powerful. You certainly wouldn't go wrong buying it if you didn't want the extra features(e.g. iLink)which are on the 55TXi.

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Enjoy the music, not the equipment.