Originally posted by rfsurfer
Also, polyfill is for removing any resonance from the box, not for "increasing apparent size of the box"...if you have a 1cbft box, your always going to have a 1cbft box....all polyfill does is act as a dampener, which is a good thing on any sized sealed box.
Well I'm not certified any more, but unless physics has changed since I was an MECP master installer, polyfill is not just a dampener, the cavities and facets of the polyfill do increase the apparent volume of an enclosure. Try a search on yahoo, do "subwoofer polyfill increase" see what comes up. Before you argue at least absolutely positively know what you are talking about. I'm not guessing at my answers. If needbe I'll see if I can dig up some old acoustics books I have. If polyfill is solely a dampener, then why do you get a increase in SPL(as much as 10db sometimes more), aside from the fact that it decreases standing waves?
You're talking about SQ yet you have a single subwoofer firing oblique to the stage? Cmon, how do time align that? And yes I know I had a pair of them aiming towards eachother, acted like a single reflex box pumping through my passthrough, was pretty loud although a tad sloppy, but I'm not going for SQ.