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Jm Labs / Focal Port Foam

What is it's purpose?  I just got a used Focal center channel CC-900 and noticed the foam has deteriorated and come apart a bit...should I be concerned?  Should I just pull it the rest of the way out?  Should I take it somewhere and have it rebuilt?  I can't seem to find anything on response to this issue in the forums, so fire away!

Thanks!
Ben
bearotti
kosst_amojan
2,095 posts
 
Focal used to supply foam bungs to stuff in the ports to knock down the bass response if you planned on sticking the speakers next to a wall or in a cabinet. Any kind of close cell foam will work. You could probably roll up some egg crate foam and stuff it in there. The point is just to plug the port well if you need to. It's not required. 
erik_squires
5,268 posts
 
Clean socks work too. :)

Erik
bearotti OP
160 posts
 
Thank you for your input!  I played some bass heavy music that chewed the rest of the foam to shreds... probably won't worry too much about this as I plan on curving the response of this speaker off at 80hz so bass Bloom won't be a problem.
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