I built some sealed, corner mounted subwoofer cabinets using a super long throw 15" TC Sounds LMS 4000 driver.They look like the Klipschorn botoms.
I was thinking of going to a higher efficiency driver in a ported arrangement.
Since these are corner mounted, an honest 30 hz response would do the trick.
Any favorite woofers that would work well in this box ?
The driver is down firing, and there is room on the bottom baffle to not only mount the driver, but place a port as well.