Dolby Atmos speaker placement for small(ish) room- 5.1.2 or 5.1.4?

tanayghosh

tanayghosh

Audiophyte
Hello everyone! This is my very first post here, and I am really hoping to get some good advice on this forum. :)

I am upgrading from an 8-year old Onkyo HTIB (5.1 setup), with the intention of going either 5.1.4 (preferred) or 5.1.2 (minimum) to enjoy Dolby Atmos. My room is on the smaller side (15x10 feet) and the biggest issue is that the main listening position can at most be only 1.5 feet from the back wall. To complicate matters further, I have a beam running through the end of my ceiling, which means that any top "rear" speakers can only placed about 1-1.5 feet from the back wall as well, which would make them almost directly overhead from the MLP (and not even close to the 30-55 degrees from the MLP that Dolby recommends).

I realize that this would not be an ideal position for top rear speakers, but is there any way a case can still be made for a 5.1.4 over a 5.1.2 setup? I am worried about losing out on the "forward-backward" movement of overhead sound, and regretting it later if I opt for only 2 ceiling speakers.

Would a hybrid 5.1.4 with a front height + top middle make more sense?

Whatever I decide is likely to be permanent.

I've attached photos of my room as well as the layout (scribbled on paper, but hopefully legible!) for reference. Distance from the MLP to the TV is about 8 feet.

Please do share your thoughts, and help a noob out :)

Thanks in anticipation!

P.S: Ignore the speaker placement for the front and surround channels. They are only kept there temporarily. Bookshelf speakers to be placed on stands soon.

- Tanay
 

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tanayghosh

tanayghosh

Audiophyte
I have decided to go with 4 on-ceiling speakers. Just don't want to miss out on the panning effects by installing just 2, and regretting it later.

The SVS Prime Elevations (and similar) are quite expensive where I live, and I would prefer to install on-ceiling speakers instead. I'm thinking of installing 2 pairs of Polk RC60i's as 'Top Fronts' and 'Top Rears'. Since I can't drill big holes in the ceiling, I plan to get wooden panels built for each of these speakers, and install them on the ceiling.

Does this sound like a good plan? I've also been told that I should install the 'Top Fronts' and 'Top Rears' about 6 feet apart to get proper panning effects. Does this sound correct?
 

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