Kit/Design Recommendations?

[djg]

Well you can't move them.

[Swipe555]

The ceiling is only 7'.
Am I correct to believe that MTM speakers would be best for the left and right front speakers with such a low ceiling? I originally thought this because of MTM's vertical off-axis characteristics, but now I'm not so sure.

I might plan on putting minimal sound absorption on the ceiling. It can't be very thick because the ceiling is already so low.

[Swipe555]

What restrictions might there be?

[djg]

Now I assumed you would be building the speakers as normal freestanding units and sticking them into holes in your yet to be built wall. That would be the way to go. You could then pull the speakers out and place them normally, after you see how restrictive your idea is. JMHO.

[DeZZar]

It will be difficult to find a kit suited to in-wall mounting. I don't know of any.

Mounting the baffle of the speaker flush with the wall is a good way to go but it does introduce a whole new set of conditions to design to. Most kit designs wont have been put together expecting an infinite baffle.

You might need to approach someone to design something specific for your needs.

If all out SPL is the goal then I've always considered putting a design together using a pair of SB Audience ROSSO-6MW150D. For HT purposes in a wall mounted baffle design a pair of these will play to 80hz in a ported enclosure of just 10L and deliver 118db (with an 80Hz high pass) at full thermal power without even hitting x-max. Paired up with a compression driver like the BIANCO-44CD-K​ for the highs you have a system capable of deafening the suburb. Of course you'll need a serious multi subwoofer setup to keep up.

The response of both drivers is actually very smooth as well so you could end up with a high fidelity setup with near on 100db sensitivity.

[djg]

All that diysg stuff is out of stock anyway.

[djg]

You can put the ports on the front, it's DIY.

[djg]

This design needs space behind it. The midranges have PVC pipes open in the back. Not a good candidate at all.

[Swipe555]

1) The room is only 7' tall. I could be wrong, but I believe the vertical directivity of MTM is good for low ceilings. Correct me if I'm wrong about that.

2) I plan on having some 12s or bigger in all 4 corners.

[a4eaudio]

1) You don't mention, but why MTM? Nothing wrong with MTM, but you are limiting your options so just curious if you have a good reason.

2) Will you use a subwoofer(s)? You mention the 8" woofers which I assume is for sub frequencies. (Go bigger for HT if you can.)

Those Apollo MTMs look great, but...if you don't really need MTMs and/or will have subwoofers handling the lowest end, then there are probably other options that will give you better midrange quality when listening to music.

[Swipe555]

If this is a good candidate, can I just put the port out the front? There's a lot of room under the woofers.

[djg]

These would blow your ears out. Component kit available elsewhere.

http://speakerdesignworks.com/SB6pakproject_1.html

[djg]

That particular design uses open back tunnels for the mids. Not working in wall.

http://speakerdesignworks.com/Anthology_3.html

[djg]

You can always clone some pro PA stuff, JBL etc. Lots of people do that. AVSforum.

[Swipe555]

I wonder if I could get good sound with this shoved in my wall: http://speakerdesignworks.com/Anthology_1.html
I'm not sure why the advertised SPL is 87.

The components suggest it should do 90 or 91. Maybe it has something to do with the crossover?
Either way... the designer suggests a max of 110SPL @ 1 meter, which should be enough for a small room.