This is a good topic.I just recently bought my home theater system, and honestly, I didn't even know about the difference proper calibration can make. I visited a couple of audio sites, talked to salesmen in the high-end stores and realized that it can make a difference. Unfortunately, my wallet can't please my ears, so I bought a "cheap" HTIB. Now I have two questions:
1. Would buying the SPL meter and calibration make sense for a cheap HTIB? 2.Is the YPAO from Yamaha the same thing?

Thanks!