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In Reply to: RE: Altec 414-8B ... posted by deathtube 667 on May 20, 2015 at 11:39:34
you might want to consider covering all that FG pink inside your speaker with a thick layer of poly fill otherwise you and your family are are going to be breathing fine glass shards. If perhaps you think I am making too much about this take a look at the regulations on sealing up a house which uses fiberglass insulation. No worries with a sealed cabinet but with an open bass reflex pumping all the time it's not a good arrangement. Nice woofer by the way congrats on the factory rebuild I'll bet it is better than new. Best regards Moray James.
moray james
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A lot of people use RG to fill speakers but I have not read any reports of negative effects or noticed fibers coming out of the ports.
I got the 414's off Ebay and the drivers measured quite differently and the original aftermarket recone job was awful, so I never listened to them, just shipped them off to Bill at GPA.
All I can say is that it was money well spent once I finally got to listen to them.
https://www.nachi.org/fiberglass-insulation-history-hazards-alternatives.htm
moray james
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