Carlspeak Posted March 22, 2015 Report Share Posted March 22, 2015 Many of the popular model E and J models had the 8 inch Vifa M21WN-07 woofer. The original foam is very supple and had a large roll. What I discovered recently was a small bead of a non-hardening polymer was applied to the crease where the inner side of roll meets the angle attach area. I can only speculate what this was for, but think it might have been a way to dampen cone break up modes at high frequencies in the 1-5 kHz range.This filling in with the polymer in the crease reminds me of the filleted foam Boston Acoustics (and others) foam are known for. Perhaps the same reasoning could be applied there.Anyone have any thoughts on this. Check your Snells foams (if original) for this clear bead of polymer. Quote Link to comment Share on other sites More sharing options...
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