Wish me luck bro. Hehe. This is my last resort btw... Still, thanks to mark for suggesting this.
as gino said your speakers are not spectacular, it doesn't even have a low pass crossover for the woofer and they sound too bright, for my ears at least. a so-so surround replacement is enough. lot of room for improvement though, some tinkering (new crossovers, braces, damping, etc) would make it sound significantly better.
If surrounds lang, ok na yung mga tiga raon na repair sa kalye, basta wag mo lang pagagalaw yung dust cap, yung iba kasi tatangalin yung dust cap para ma centro.
refoaming without removing the dust cap will give a hit-or-miss alignment, but yes it can be done. kaso the raon guys can't do it, kaya yung apat na 8" infinity reference woofers ko ako na lang nag-refoam.