Used the RX-A770's YPAO speaker setup system for the first time with the Monitor 10B's in proper working order. The A770 has just a single point setup. The multi point system starts with the next model up the line. I have read a great deal about this system. It has some short comings in the automatic settings that need to be corrected in the manual mode. The biggest problem is for the front R/L, and surround speakers it defaults to the large speaker size. In the front in the large speaker setting with stereo sources the subwoofer is disabled. The 10B's can, especially now, can handle 95% of the types of music I listen to but some of the electronica has very deep bass that has a dynamic range that can cause them to get snappish. Letting the subwoofer handle these very low frequencies prevents this and improves the over all sound. I manually have it set for 60Hz. The surrounds are RTi-A3's decidedly not large speakers. I manually set them to send 80Hz to the subwoofer. The YPAO is set in the flat mode. Many of the magazine reviewers of the YPAO are critical of it's automatic settings for home theater. The most notable is, again the LFE settings for movies many say a setting of 100Hz is best. I have tried this especially with a blast-o-rama Marvel movies it does seem to be the best. If I want pure stereo I just select Pure Direct Mode which turns the Yamaha into a straight 2 channel stereo amp. I was very pleased the YPAO system check found no issues with any of speakers, no errors, no phasing issues.