so i had a box built by double07 and it sounds fantastic. after listening to it for awhile i came to the conclusion that i should have had it tuned a bit lower for my taste. currently it is tuned to ~32hz and it houses 2 SPLaudio 8's. the problem is the final note in "I Put On" does not play hardly at all. the subs move and there is airflow, but hardly any output. im only putting ~600W to the pair so that is probobly part of the issue. what i want to do is try and effectivly lower the tuning to ~29hz using polyfill in the actual "enclosure" and lining the port with the Quilt-style polyfill.
i have used the quilt-style pollyfill in Tapped horns ans T-lines before with nice results, but since this is a tradtional ported enclosure im not sure how it will react. when i did the T-Line for a friend we saw an effctive tuning drop of ~3hz, which would be exactly what im looking for. the only problem is i cant line the whole port, just the short part of the "L".
does anyone have experiance using Polyfill in a ported enclosure on here?