Tam Thanks for the input...haven't tried 40 hz yet but have the center crossed at 60hz( forgot mention I change 2 days ago) and the 80's at 60 as well
Have turned off surrounds and front heights to concentrate on main front soundstage and as I said very little difference ( subtle)some of the main differences seem to be in bass heavy soundtracks but still very subtle.......snow day here today ,so I will demo all day....
Anyone have any suggestions for demo material.....

denon 991 /M80's /vp150 & 180 /4x QS8's
Velodyne 15"/ Dbox 12"
ps4 benq w1070 -grand view 106" FF