Oh man, that makes me feel much better to hear. I’ve been fairly discouraged by the limitations of the room. I’ve built all openings for the precise specs of the speakers plus a small wiggle room to get each in and out. I’m trying to make all the adjustments I can to maximize performance one piece at a time. I’ve planned for a 5.1 system
Mains I’ve chosen are the Bower and Wilkins 607
Center Bower Wilkins HTM6 S2
Sub SVS pro 1000 ported
Rear In wall TheaterMonolith THX-275IW 3 way
powered by the Emotive XMC 9.1.6 processor
And the Emotive BasX A7 Channel Amp.
But I’m open for any suggestions.
Now we see your first major mistake. You can not use speakers designed to be free standing as in wall speakers.
The reason is the a speaker out in a room has a transition point were it transitions from being a monopole to an omni-pole. This frequency is determined by the width of the front baffle. This has to be compensated for, by a boost of 6 db. starting below the transition frequency. This is designed into the crossover network.
When you mount a speaker in wall, there is no transition frequency, in fact there is bass reinforcement from the large flat baffle. This remains a problem in any event, as not all walls are the same. These reflections result in peaks and nulls in the lower frequencies.
In any event using the speakers you have selected is going to make them very bass heavy.
The result is likely to be poor speech discrimination, especially for male voices.
In wall speakers are not easy to design, which is why there are precious few good ones.
I have designed one for my wife for our great room, and it has excellent speech discrimination, but it is not the easiest of journeys.
So I see that as a major flaw in your design.