Yep, my QS-4's are already positioned to be between first and second row.
I've been reviewing Dolby's website on ATMOS speaker placement and noticed that in one configuration, front speakers with the ATMOS integrated angled up-firing configurations are meant to reflect sound off the ceiling and down at an angle to the listening position.
With that in mind, one of the options I'll be exploring is mounting 2 of my Yamaha AP5400's at about 6' (I have decorative 6"x6" reclaimed barn pine beams every 6 feet) and angling them towards the listening position. I'll be mounting a second set of the Yamaha's on the beam at 12' (slightly forward of the main row) and use the last pair as rear surrounds. Luckily I have a 4 pair speaker switch making comparison easier
Of course, I can already see my next upgrade requirement for a pre-pro capable of doing X.X.4 or 6 ;p
