It does seem as if I am striking a chord here.
Yes, currently marketers are a waste of space. They have no clue what the average home owner would really like.
Until this year we had never hosted a Super Bowl party. This year multiple friends called us to ask if they could watch the super bowl here. They all have TVs. The difference was the Audio, yes the audio. Clear diction and uncolored sound creates involvement. So they wanted it in our new great room with my in wall system. So we threw a big party and cooked all morning and most of the afternoon. Now pretty much all of those would love to have a system like that (3.1) in their homes. The problem is that the industry does not offer anything that would make a good discrete system like that easily feasible.
So yes, I do believe it is possible to develop home friendly systems.
What Hi-Fi said about builders and installers is absolutely true. I certainly had to be very forceful and present on site to get things done right. However the low voltage guy was really interested and eager to learn. The Ethernet architecture was all done by myself and my eldest son. In the end we pretty much did the installation except the security system. They placed most of the Tech Tubes and passed most of the Ethernet cable, but not the terminations. I sourced and provided all of the hubs patch bay, modem and mesh router system, and of course the UPS systems. We did a lot of teaching along the way.
The Electrician was excellent and eager to learn. I did the architecture of the home grounding system and circuit layouts and design to minimize RF radiation, as there are a lot of LED light bulbs and dimmers. I provided the magnetic shunt breakers for the power amps and the 'radon' ventilation system for the power amps. It was placed in the attic by the HVAC crew.
So yes, there does need to be novel product introduced and a lot of education provided for many segments of the building industry.
I will say, that the in wall system is a great success, not only with my wife, but for family and friends before lock down. The problem is that a standard stud wall is really not quite deep enough to support a decent system. But it would not have to be that much deeper. Making a wall a bit deeper is not such a big deal. The biggest problem is how deep receivers and pre/pros are. It is my contention that you could actually make a good pre/pro pretty small with optical speaker outputs.
Now the issue with speech clarity, is in my view very much an issue of phase/time shift in the speech discrimination band, and high Q bass interfering with the former. The lobing pattern of horizontal MTMs is also a significant issue. I have done my own investigation of this, and I know it to be true. Not a may be, but certain.
Now take a look at this active KEF lsx review. In particular look at the this superb step response, entirely due to imaginative use of DSP.
So I can tell you without hearing it, that speaker will have superb voice clarity.
Now in terms of hiding subs, TLs actually come into their own here, as they can be designed very slim. The 10" driver in my in wall system fills that huge space with deep bass without difficulty. You would think there were at least two 15" drivers, or may be more. You might have trouble believing that, but it's true.
So if you geared a system along those lines it could be made for both discrete in wall, or free standing systems. The DSP would make it easy to adapt the system to any application. What I mean is be able to correct for in wall, free standing or other without design changes. With high grade components systems could be made user friendly and give long reliable service. I actually suspect that a system on those lines would work just as well as 2.1 as 3.1 providing further cost savings.
My biggest regret of all this, is the total lack of imagination in the industry and their willingness to pass markets by. I would just love the chance to shake this industry up, but probably will not get it. The state of affairs is in my view lamentable and way short of what can, and needs to be achieved.