Sealed JBL 2242HPL
25Hz vented AE TD18H+ Apollo
Sealed AE TD18H+ Apollo
MTX 9515-44 tiny passive radiator box with dual 15" VMP's (18 and 30Hz tunings to correspond with typical HT and car audio tunes)
Extra small sealed LMS 5400 Ultra and larger sealed MTX 9515-44 tests (to collect data to have directly comparable very small sealed and medium sized sealed for each driver and use to evaluate the effects on output, distortion, sensitivity, etc...)
LMS 5400 Ultra dual 18" VMP passive radiator system with 18Hz and 30Hz tunings
BMS 18N862 Sealed
AE TD15M Apollo sealed and vented (need to build a 15" enclosure for vented.)
^ ^ ^
All good stuff there, especially interested in anything related to the AE TD18H+ Apollo
I also have a number of investigative things I would like to do like measuring the gain of at least a few more vehicles and rooms and doing some distortion measurements with push pull drivers versus push push.
Is very, very cool. Reciprocal gains from the room, push-pull experiments, great stuff ... love to read it. Keep us informed/let us know how to help.
Something I think would be an asset to the work you're doing here is better quality free air driver excursion videos. Please, no offense intended, however the previous ones could certainly be better.
As always, if there's something needed from the community here, I'd think the majority would sure like to help. I can't speak for everyone, but I know I'd help most anyway I could.
Thanks for everything.