I believe with the MultEQ XT you get upto 8 measurements and better filters. From their website...

"MultEQ XT, using the receiver interface, takes up to 8 measurements around the listening area and uses high resolution equalization filters for satellites and subwoofers. This is the most powerful built-in version of MultEQ for receivers."


"MultEQ takes up to 6 room position measurements, and uses mid-level resolution filters for satellites and subwoofers.
"

M80s VP180 4xM22ow 4xM3ic EP600 2xEP350
AnthemAVM60 Outlaw7700 EmoA500 Epson5040UB FluanceRT85