Updated thread title 7/30. Erich got back to me again and really thinks the Apollo would not be a good match for the 1099s.
I am hoping for some suggestions on any other center channel designs were the max height is below 8 inches.
One of the designs I researched was the Ares MTM, same designer, but uses the smaller Anarchy woofers. I wonder if what might be ideal is a 4 woofer 5" Anarchy design but I haven't found anyone that has attempted that.
I reached out to @Erich H
and he got back to me with an initial conversation, but we all know he is extremely busy. For my brother's 1099 tower L and R builds, I am also trying to solve a center channel problem
Here's the 1099 progress. They are actually fully prepped for veneer right now.
I have finally started building my brother’s 1099’s after a long 4 years that included moving and a million other projects in life getting in the way! My brother wanted some kind of angular design and after a few doodles, this is what we came up with. I’m going with the orange circled one...
My brother's livingroom is a giant ~30' X ~16' rectangle with a (stupid) gas insert fireplace in the middle of one of the long walls with an 85" Sony mounted above the mantel (also stupid). Unfortunately, the room layout is not going to change despite my pushing. He has been using a Polk S35 center channel under his TV on the mantel.
Might look impressive in a photo, but those are 3" woofers. lol
Even with a couple of cheapie Polk floorstanders filling in for left and right duty while he waits on his 1099s, he has to crank the center channel in order to be able to mostly hear a movie and TV show.
Anyway, once I deliver his 1099's, his current center channel is going to be even more woefully inadequate.
Here is a rough layout for all you visual learners.
Terrible, right? As you can see, nobody can actually sit in a good position relative to the LCR speakers and the center is never going to be pointed more towards the couch.
If we move the TV a couple more inches up (ugh), I could probably squeeze an 8" high center channel under his TV. I got looking at what the DIYSG options are and I like what the Apollo-7 MTM offers. I would make a custom baffle that would squash down the cabinet height to absolute minimum leaving the top and bottom edges of those Anarchies right up to the edges. The front would be ported. Everything I have read says that the Apollo is capable of very high output. I also like that it has a little waveguide to help dispersion on the tweeter. One of the rubs is that the Apollo has relatively low sensitivity; 88db (especially compared to the 1099s). His Denon AVR-X4300H is spec'd at 165WPC into 6 ohms, the Apollo MTM is a "friendly" 4 ohm design which works to our benefit on the wattage side.
Please help me out with the question, will the Apollo-7 MTM work for me with a pair of 1099s in this room?
Ideally, a big wide waveguide would be better, but there are simply no SEOS designs that are going to fit under his TV.