I did most of what I had planned to do this weekend.
- recap using Crites caps
- TI tweeter diaphragm
- wood glue to seal seams/caulk on grill grommets/rope caulk around drivers and terminal cup - all meant to improve cabinet air tightness and improve bass
- add weight to passive radiators (I added 2 oz)
- since my horns are plastic, I skipped dampening them - thanks for the heads-up
My initial impressions after less than 90 minutes of listening time (and little time to mess with placement)
- the speakers sound more refined and more expensive. Probably easier to listen to for long periods
- feels like it smoothed out the high end (however, I was hoping to get more sparkle out the highs, which I don't think happened)
- I can't really tell whether the bass is deeper or tighter as a result of the weight
- the cabinet work made no difference as measured by pushing in the passive and watching the woofer - it behaves exactly as it did before and nowhere near the 3 second return time I've read is the desired target
- not sure if the smoothing and refinement has lessened the exciting, live sound of the speaker. I haven't had the opportunity to push the volume up
The net of it is that for the $110 I spent, I'm relatively happy, more from a "peace of mind" standpoint than an actual sound improvement standpoint. I unfortunately have not had the experience of "this turns these into world-killers that it would cost $5000+ to compete with in today's market." I think they are slightly nicer than before, but I have to listen for the differences. The good news is that the Fortes, more than my Snells, has me listening to and enjoying whole songs and enjoying the music vs. being overly focused on analytically listening for details and trying to determine whether I liked my speakers. The Snells went up on Craigslist this weekend.