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Atmos 5.1.4 or 7.1? Need help with speaker placement

2880 Views 20 Replies 7 Participants Last post by  opcod
Hello Gurus,

I recently bought 4 additional Polk RM2350 satellite speakers to match my existing ones real cheap. I got 4 additional ones, a center , and an extra sub (sony brand not matching my existing sub) for $60. The new satellite speakers are black and my existing ones are grey.

I would like to figure out how to make a 5.1.4 setup work, ideally in the space that I have. I am not an audiophile so it does not need to be "perfect" Atmos. I just want to get some added benefit of ceiling speakers. Also I am not able to put these "in" the ceiling, so they would be ceiling mounted.

Attached is an image of my room. I still have to clean up the existing 5.1 speakers as I am now projecting a 155~ 4k image with the TK700STI. I am also likely going to move the book shelf and bluray rack that is on the front left side there away from that ara. I think it makes the most sense to mount the ceiling speakers on the left under the bulkhead (in black) rather than near the ceiling (in red), due to the audio bounding off the walls if placed near the (red). My question though then is, if i use the area on the right for the right side ceiling speakers, should I try to get a mount that allows the speakers to come down around an equal distance to where the bulkhead speakers would be? Or would I be okay with having the audio offset on the left side vs right as far as height goes? The alternative may be to go with just 7.1, but I do have these 4 matching satellite speakers that i would like to utilize. Any other ideas, I am open to hear. My receiver is the Yamaha TSR-700

If you have any recommendations for wall mounts as well for the satellites, that would be appreciated. I know its not the cleanest setup right now but i am far from finalizing the room. Thank you for your time and thoughts.
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Shouldn't be a problem mounting the two left height speakers on the bulkhead. The minor difference in height will be compensated for during initial calibration (no need to mount the two right height speakers lower). Only suggestion I would make is to spread the speakers farther apart front to back (around 4 feet forward and rearward of the couch).
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Shouldn't be a problem mounting the two left height speakers on the bulkhead. The minor difference in height will be compensated for during initial calibration (no need to mount the two right height speakers lower). Only suggestion I would make is to spread the speakers farther apart front to back (around 4 feet forward and rearward of the couch).
Thank you! So I should actually have 2 of the ceiling speakers 4 feet behind my couch and the other 2 speakers 4 feet infront of it. OK good to know.
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When going with .4 Atmos, the speakers should be ~ 45 degrees in front and behind the seated ears. In this picture, both are in front of the seating?

Also, IMO, you would be better off leaving both sets of speakers on the higher portion of the ceiling, to enhance the separation of the Atmos speakers from the bed level speakers. Granted, you will have an issue with the bulkhead wall, so I would look at using wall treatments to lessen the wall reinforcement ( a couple of home made ones can be done cheaply). Mount the speakers a bit away from the wall to allow their use.
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I'm confused. When going with .4 Atmos, the speakers should be ~ 45 degrees in front and behind the seated ears. In this picture, both are in front of the seating?

Also, IMO, you would be better off leaving both sets of speakers on the higher portion of the ceiling, to enhance the separation of the Atmos speakers from the bed level speakers. Granted, you will have an issue with the bulkhead wall, so I would look at using wall treatments to lessen the wall reinforcement.

Sorry I was just trying to show visualization of speaker location options, not exact placement. If I drew that more accurately it probably would of caused less confusion . I understand the 45 degree angle and behind and infront of the couch for the actual location

What exactly would you suggest for the wall treatments?

It looks like we've got one vote to put the speakers near the upper portion and another on the bulkhead for the left side. I'll let the votes keep coming in :)
Sorry I was just trying to show visualization of speaker location options, not exact placement. If I drew that more accurately it probably would of caused less confusion . I understand the 45 degree angle and behind and infront of the couch for the actual location

What exactly would you suggest for the wall treatments?

It looks like we've got one vote to put the speakers near the upper portion and another on the bulkhead for the left side. I'll let the votes keep coming in :)
DIY treatments ... post a thread in the DIY forum here for "recipes".
Here's another photo looking backwards for the top rear two. Thats around 4 feet behind the couch or so, probably a little further. If i choose the location near the top of the ceiling instead of near the bulkhead, how far away from the bulkhead would you suggest? The concern I had with the higher part of the ceiling is that location would put the speaker more towards the center of the couch rather than truly on the left side. The only way I could get away with truly near the left side of the couch is going to be mounting it on the bulkhead
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Move the couch.

Just enough room to easily fit the frame of the wall treatment.

BTW, looking at your room picture again, you may want to consider adding a treatment to the post that sits just to the left of the bookcase. Once that bookcase is moved, the exposed inside corner will not be kind to the sound.

Overall, that is going to be a very live room, with so many hard surfaces. You may find that more treatments will be beneficial (front and rear walls, first reflection points, etc.). If the floor is not carpeted, you might consider that to improve the sound quality in the room (at least the area between the front speakers and the seating).
Move the couch.

Just enough room to easily fit the frame of the wall treatment.

BTW, looking at your room picture again, you may want to consider adding a treatment to the post that sits just to the left of the bookcase. Once that bookcase is moved, the exposed inside corner will not be kind to the sound.

Overall, that is going to be a very live room, with so many hard surfaces. You may find that more treatments will be beneficial (front and rear walls, first reflection points, etc.). If the floor is not carpeted, you might consider that to improve the sound quality in the room (at least the area between the front speakers and the seating).
Thanks for the continued input and these considerations. Even by putting the couch right up against that right wall I am not sure the speakers if ceiling mounted will be near the left side of the couch. I will further investigate that.
I had a similar issue in my room except it was my rear speakers. There’s a framed in AC duct in the back of my room that I had to mount my speakers to. With Audyssey calibration it sounds great. Here’s a picture in their first positions. I’ve since moved the front heights forward about 2-3 ft and moved the rear heights to the edge of the duct.

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I had a similar issue in my room except it was my rear speakers. There’s a framed in AC duct in the back of my room that I had to mount my speakers to. With Audyssey calibration it sounds great. Here’s a picture in their first positions. I’ve since moved the front heights forward about 2-3 ft and moved the rear heights to the edge of the duct.

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Nice work on the concealment of wire. A lot of members dont bother.
Rich
Nice work on the concealment of wire. A lot of members dont bother.
Rich
Thanks. It looks better after I painted over it. I used paintable wire tape called "ghostwire". Turned our really well, but the termination boxes are kind of a PITA to work with.

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Perhaps these photos may explain my conundrum a bit better. So i can't really move the couch closer to the wall unless i completely move the location of the subwoofer. Perhaps i could put the subwoofer in the center behind the couch but i'd worry about folks tripping on it while playing pool. I can't really move the couch further back because of the pool table...I'm already pushing a 150 inch image at 11.5ft viewing distance so i won't be able to go forward :) Placing the front left speaker at ceiling height 2 feet away from the bulkhead puts me in the center of the couch currently. It's not directly center, perhaps a little offset to the center. Would mounting the ceiling left satellites 1ft away from the bulkhead work and just reinforce near the bulkhead with some wall treatments? Then i'm sort of center in the left chair. I was able to scoot the couch about 6 inches or so closer to the wall. Visually though and after thinking about this more, I do think it would be better to have the speakers mounted to the ceiling anyway rather than under the bulkhead. If mounted to the bulkhead, it would be pretty low to the ground.
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One other question I have. If I wanted to do some floor related treatment for minimizing reflections what are my best options? I have engineered hardwood and won't be able to remove that. I was thinking either a large rug or interlocking gym style rubber tiles? Limited budget and can't tear up thr flooring to make it perfect. Thoughts?
One other question I have. If I wanted to do some floor related treatment for minimizing reflections what are my best options? I have engineered hardwood and won't be able to remove that. I was thinking either a large rug or interlocking gym style rubber tiles? Limited budget and can't tear up thr flooring to make it perfect. Thoughts?
Nice area rug would be a good start.
Area rug is the easiest solution. Fortunately, they come in all sorts of price ranges, so if your budget is tight, you can go with one of the lesser-cost options. You might even get lucky with a discounted remnant from a carpet store that fits your space and save a lot.

As to the Atmos speaker near the bulkhead, there is no need for the speaker to be 2 feet, or even 1 foot from the bulkhead. Six inches, perhaps a touch less, if the treatment frame is < 4". Let the size of the frame make that decision for you. Keep the right side at a similar angle to the couch, even if that means it sits inward of the couch edge. Both should be toed in towards the main center seat(s) of the couch anyway, so that will help lessen the reflectivity off the bulkhead.

If your sub is in a good position now, then just leave it where it is. If it is boomy or uneven, then try it on the other side of the couch, or in some other position in the room (sub crawl is your friend).
Area rug is the easiest solution. Fortunately, they come in all sorts of price ranges, so if your budget is tight, you can go with one of the lesser-cost options. You might even get lucky with a discounted remnant from a carpet store that fits your space and save a lot.

As to the Atmos speaker near the bulkhead, there is no need for the speaker to be 2 feet, or even 1 foot from the bulkhead. Six inches, perhaps a touch less, if the treatment frame is < 4". Let the size of the frame make that decision for you. Keep the right side at a similar angle to the couch, even if that means it sits inward of the couch edge. Both should be toed in towards the main center seat(s) of the couch anyway, so that will help lessen the reflectivity off the bulkhead.

If your sub is in a good position now, then just leave it where it is. If it is boomy or uneven, then try it on the other side of the couch, or in some other position in the room (sub crawl is your friend).

Thanks Ray that helps a lot. Much appreciated. I suppose you would suggest the treatment panels for the left side directly behind the speakers, which means mounting them directly against the bulkhead in this case
Yes, against the face of the bulkhead. Not really behind the speaker, more to the side and extending forward of the front of the speaker a few feet.
Yes, against the face of the bulkhead. Not really behind the speaker, more to the side and extending forward of the front of the speaker a few feet.
Awesome. I think I'm good to go on next steps. I'll make some after photos once the work is done
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Well I've got a funny story. I got everything mounted tonight and hooked up. The Yamaha TSR 700 i got suggested in another thread doesn't actually do 5.1.4

It can apparently do both 5.1.2 OR 7.1 depending on the content. So now I've got a combination of 2 front ceiling for atmos 5.1.2 and rear ceiling speakers for 7.1 content.

I know ceiling rears isn't ideal for 7.1 but I couldn't do floor ones anyways, so I guess it all worked out.


Did calibration finally for the first time today as well and got my felt rug pad in under my rug. Things sound nice.

Only questions from me: how can I truly test that Atmos is working as intended? Also, Can i somehow use both the front ceiling speakers and rear ceiling speakers at once, like a 7.1.2 configuration? If so how do i configure that in the TSR-700?

Final setup:

Projector- benq tk700sti
Receiver- yamaha tsr700
Speakers- satellites and ceiling (8 total). Polk rm2350. Center is 2650 I think and my sub psw202.

Only thing left is the acoustic panels. Will post photos soon
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