Hello again, After reading your responses to my last post, I decided to go out and listen to the HK 525 and Pioneer 43tx again. I have decided to go with the Elite rather than the 525 (I just like the sound a bit more), but have a few more questions regarding the 43tx and 53tx. Basically, I see the only major difference (I'm not concerned about USB inputs) as being the auto/manual MCACC. I don't mind setting up the system myself, as I have always done so in the past, but would like the convenience of auto calibration. However, I have read that the auto MCACC generally sets the fronts to large rather than small. I currently have a Yamaha 5460 receiver and have found that I get better performance when setting the fronts to small. My initial question is whether the difference in receiver quality (5460 v 53tx) will allow me to run the fronts set to large, or if I will still be better off running them on small? If the receiver quality will not make a difference and I have to manually set the fronts to small, will I have to then manually tweak the system to acheive ideal results? Basically, I am wondering if auto calibration is worth it ($200 price difference) if I will have to adjust the MCACC settings manually once it has automatically configured the front speaker setting to large. Hopefully this was clear enough. If not let me know and I will update the post. Oh yes, my current system is: Fronts -- Klipsch SF2's Center -- Klipsch SC1 Surrounds -- Klipsch SS1's Sub -- JBL PSW1000 Receiver -- Yamaha 5460 Room size -- ~15x15 Thank you!!!!