before you guys start anything disturbing understand that i hardly know my stuff, although i'm interested to learn.
i've been reading about sealed and inf-baffle, if i understood correctly sealed has the smallest box and is the easiest to design though often having a roll-off on the lower frequencies, with inf-baffle having the flattest response curve although requires one of the more complex to design.
so i thought of it, why not try mimicking the effects of inf-baffle while maintaining the compactness of a sealed box?
as one might expect, i've gone insane. i can already hear comments "wtf is this?" "pure waste of money" and other disturbing comments hahaha.
but please relax i'm only gathering opinions and proof of concept.
as for the design, first i thought of having only two set of drivers facing each other, but it hit me that it'll stupidly vibrate and cause distortions. so i had separated it to three drivers with the two facing each other for them to cancel out, neat.
as for the concept, as you see the whole box is sealed, with chambers of their own, but whats these color coding. well as it looks, the gray area in the middle is a neutral zone where pressure should stay constant because of the other two drivers, the red zone though would be the main damping chamber to damp excess pressure off the gray area.
ignore the yellow stuff at the back since those are just dampeners, foam maybe just to damp reverberations from the main driver.
with this design, it should be probable to create a neutral pressure in the gray area ideally staying that way for all frequency curve, mimicking an infinite baffle. although excessive pressure on the red zone may as well destroy the inner drivers but lets ignore that for now.
for this design to have an ideal outcome, the displacement of the main driver should have proportional amount with the two inner drivers of 1:1, tuning it should be easy though but what about having the inner driver performing more?
having a ratio of 1:(N>1) would result into this:
the blue is the main driver, while the red is the inner drivers. as you can see theres an area where the displacement aids the main driver in a good way, during minimal excursion of the drivers theres no perceived effects, but higher excursion level would gain benefits.
this could be seen as a higher response rate on higher output or lower frequencies, maybe even both.
PS: excuse the crude drawings, heh.