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In the Forum: Horn-Loaded Speakers
In the Thread: Push pull compound compression driver??
Post Subject: Push pull compound compression driver??Posted by martinshorn on: 4/24/2017
Hi there
For some time its bugging me that compression drivers got a very heavy but odd load of air coupling on the membrane.
I saw a scatch here to put ideally 2 Horns on each side of the driveway to balance it. That's obviously not so economically 
What about instead taking 2 drivers, taking the rearchamber off, and put them face to face with the diaphragm (and maybe a little spacer not to squeeze the dome) together. Then connect them out of phase.
Youd end up having a mirrored driver with 2 throat exists. One going to the horn, the other to a rearchamber. Ok still got a rearchamber. But the driverpart with phaseplug would be 100% symmetrical. Consequently most of the load. The volumes between the dias would be pretty tiny and shifted instead of compressed, due to out of phase connection. That could kill most of the even harmonics. The remaining rearchamber on the second driver would be further away, membrane isolated and feedback controlled by one active element.
Sounds nice on paper to me. Anyone ever tried and measured? I couldn't find anything in the web. Its been practiced in bass for decades with success.
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