I'm preparing for my next build, and I am looking for some clarification on this matter, which seems to go unanswered on all the threads I've searched. One of my goals in this build is to eliminate as much resonance and distortion from the cabinet as possible.
I've built many enclosures utilizing varying degrees of bracing to achieve a somewhat "inert" enclosure, which is usually where typical DIYers will stop. I understand that raising the resonance of each panel above the operating frequencies diminishes the sound radiating from the box, but my main question is: Where does that energy from the back of the driver go if the walls of the enclosure don't "absorb" it by resonating? Energy cannot just be "stopped" by dense or braced materials. It seems to me, that this just forces the energy to come back out the driver, causing distortion and time delay in the listening area.
I've read into constrained layer damping, and frictional damping with materials like fiberglass, which both absorb the energy by converting it, rather than reflecting it. Has anyone had remarkable success with particular designs that use these?
What if a waveguide or similar shape were implemented inside a sealed box to simply "bounce" the rear waves around enough to diminish them before they exit the cone again? Would this create other problems within the cabinet?
I've built many enclosures utilizing varying degrees of bracing to achieve a somewhat "inert" enclosure, which is usually where typical DIYers will stop. I understand that raising the resonance of each panel above the operating frequencies diminishes the sound radiating from the box, but my main question is: Where does that energy from the back of the driver go if the walls of the enclosure don't "absorb" it by resonating? Energy cannot just be "stopped" by dense or braced materials. It seems to me, that this just forces the energy to come back out the driver, causing distortion and time delay in the listening area.
I've read into constrained layer damping, and frictional damping with materials like fiberglass, which both absorb the energy by converting it, rather than reflecting it. Has anyone had remarkable success with particular designs that use these?
What if a waveguide or similar shape were implemented inside a sealed box to simply "bounce" the rear waves around enough to diminish them before they exit the cone again? Would this create other problems within the cabinet?