Hmmm.. you might want to mount the tv on the wall first before you decide on speaker placement. You need to get your viewing angle right after you sit on your couch and match the center of your tv screen to your eye level first.. then you can figure out the center speaker and your equipment rack's placement.. your equipment don't necessarily need to be below your tv unless you don't want any long cables. I'd suggest if you are not planning on placing your subs in front then you cant get another identical rack and place them to the left and right of your tv and get a stand for your center speaker which will be in the center below your tv.. But your tv has to be mounted on the wall first before thinking abt where to place your center speaker.. cos you can play around with either the top or below your tv for the center speaker... but once your tv is mounted, it's not gonna move anywhere. Sent from my SM-G965F using Tapatalk