Yes now your going VERY deep! Have you ever thought about doing a few prototypes? You can buy shells,BA & Dynamic Driver's, Cables etc.. on places like AliExpress these days and then design your own crossover's,sound tube's and other tuning internal's and see how you get on(again forgive me if you already have i wasn't sure)
And if it does turn out well you have something to show and pitch to these big companies?
Unfortunately unless you have plenty of money? working with these big companies is one of the only ways to get things to market and that's with anything not just technology!
Another old saying "you need money to make money"
A little story, just before Bob released B.C i pitched an idea to him? I'm a true basshead BUT love my mids & treble so iv had an idea for an Audiophile Basshead monitor for many years now which is?
We all know the two big difference's & strength's of BA Bass & Dynamic Bass? the former exellent attack & decay speed, control,great transients ect.. But Dynamic Drivers have fantastic extension,rumble, shorter decay bringing ambience to the music. So this means each one is better for different genres(I'm not gonna list them we all know)
Due to this people and audiophiles in particular have at least ones set of each to cover the different needs/genres? Well how about a monitor that has say
2 BA's for mids,2 BA's for highs & a couple EST for ultra highs and a Dynamic Driver for lows and a BA driver for lows BUT the BA & Dynamic drivers for lows cannot work at the same time, a switch would switch each one out, all the other drivers would work together but you would just change each Low Frequency driver from BA OR Dynamic , the best of both worlds and no more needing 2 or 3 different monitors?
Well going back to the point in question? Bob said it could work BUT bringing it to market would cost about £10.000 just for R&D and to end up with one finished sample monitor, then you have to find the money to manufacture how many hundred/thousand monitors to actually sell!
So i forgot about the idea LOL
Back to the old saying
"YOU NEED MONEY TO MAKE MONEY"
But again, with all that said i wish you the best of luck if you was to take the leap and try