Originally Posted by Elill
Hi Roger, interesting. I am planning something similar (albeit a long way off actually implementing):
Looking at your Post #6
, you (we) don't really have room for front heights? have you thought about it?
I have two choices for front height speakers: 30 deg elevation (more toward the front of the room), or 40 deg. I went with the 40 deg as that seems most in keeping with the Atmos zone of 30-55 deg. That location would work equally well for PLIIz, but I do not have that mode available.
The rear speakers are elevated 130 deg (the zone said to be 125-150 deg), which, at 10 deg higher angle if incidence than the fronts, may seem steep but it is just 30 deg above the surround "plane" which is elevated 20 deg for all 4 surround speakers. I think a 30 deg offset is necessary to really distinguish the heights from the surrounds.
Your front heights are clocking in at ~52 deg elevation, which s the top end of the recommended range. And the rears at 115. I think these will work fine for all concerned.
In that speaker model, is that horn for the tweeter?
I realize it is too late to worry about it, but even though the venerable Erskine group defined it, I feel the surrounds should be more forward, for better envelopment for the front row (MLP is there, right?), and it will not harm the rear effect at all. See diagram.