I wasn't sure where else to post this, and I figured this forum would be my best chance of getting some useful help/ideas....
I have 2 X Polk 12" subs, one of which operates fine, the other is having some issues. The sub with trouble makes a strange noise when pushed to any kind of desirable volume level, especially on the lower freqs... The noise it makes is a sort of squeaking/whistling sound, it's really hard to describe...my first thought is that there is a bad seal somewhere.
So my question is should I disassemble this sub and try to locate the source of the problem? Maybe there's a bad seal around the enclosure? Would some kind of silicon caulking be worth a shot? What I mean is should I try running a bead all the way around the enclosure and see if that helps?
Also, I wanted y'all's opinion on modifying the Polk monitor 60 enclosures. I remember reading somewhere on avs about modifying/improving "stock" enclosures to get better sound on the cheap...is there anything I could do to the inside of my towers to improve the sound? Poly fill? Run a silicon bead around the seals of the enclosures? I'm really open to any tips/advice, even if it is just to tell me to not waste my time.
Thank you! I welcome all inputs!