Originally Posted by aboroth00
I've played around with two vs four height speakers and the difference between the two is definitely perceptible. The panning effects front to back are much more realistic than having just one set in my setup. Aesthetics aren't as much as a concern because it is a dedicated area and running cables for a more permanent solution will be done once the final setup is realized. I don't believe the L R degree separation will make a large difference between the heights and the mains are too important if the height speakers purpose is to create a height effect and not a further separation of L and R. I'll probably follow the Dolby atmos recommendation and mount them at a 45 degree angle wrt vertical on the ceiling. I believe it would be better if they are more in line so the height speakers can blend into the mains more seemlessly so there isn't a panning effect left and right when sound is moving through from the mains to the heights. I've been running Dirac as well so I'm not sure whether its taming reflections or not but I haven't had any concerns about a mass of sound that isn't delineated.
The recommendation to elevate the surrounds is well taken. I'll probably add a cinderblock or something onto the stands to see whether it makes a large difference. The speaker in the back is a rear surround I was playing around with. It probably won't stay there. Just an extra speaker I had around.
I suggested the ceiling mount because the height speakers nomenclature is kind of deceiving. It's not just to create height but to actually envelope you. Otherwise, if something passes over head its hard to create that effect when the sound has to jump from the front wall to the back wall. When you have a ceiling mounted speaker that sound can actually travel over you without being simulated. That's why the primary atmos set up is with ceiling speakers, or speakers that reflect off the ceiling.
From the manual:
Ceiling speakers, etc. are used for
maximizing effects in Dolby Atmos or
Dolby Surround listening mode. Install Top
Front speakers so that they are positioned
at a point between directly above the
listening position and directly above the
front speakers. Install Top Middle speakers
so they are directly above the listening
position. Install Top Rear speakers so
they are positioned at a point between
directly above the listening position and
directly above the back speakers.
●● Dolby Laboratories recommends
placing the speakers as described in
"Installing speakers in ceiling" to obtain
the best Dolby Atmos effect.
A Dolby Enabled Speaker is specially
designed to be used as a height speaker.
There are two types of Dolby Enabled
Speakers; one type is designed to be
placed on top of other speakers such as
front speakers and surround speakers,
and the other type is designed to be integrated with normal
speakers. Dolby Enabled Speakers placed with their
diaphragms facing toward the ceiling create higher effect
in the Dolby Atmos and Dolby Surround listening modes
by providing sounds echoing off the ceiling.