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In Reply to: RE: Philips posted by huubdas on June 15, 2015 at 05:59:15
The longest lasting surround material is treated cloth. The accordion surrounds on pro woofers lasts a long time, many still fine after 60 or more years of use.
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The surrounds on my Wharfedale W90's are fine.
Dave
I refer to the Wharfedale Glendale.
Rubber (?) surrounds look as new but dried out and rather stiff.
Resonant freq much higher than ought to be.
If surrounds become stiff a nasal sound results.
W90 could be better, I don't know what type of surrounds they have, if sounding oke you're a luckey guy.
W90's are from the late 50's/ early 60's. I think it is quite a different animal.
Dave
Crazy,
Up to the sixties almost no problems with 12 inch harmonica surrounds, for high fidelity the best solution, fullrange or woofers.
Problems began with smaller woofers, small boxes that made longthrow, low res. necessary, roll surrounds became fashion. Problems until now !
Depends on the treatment material.
I've had Monacor and some automobile speakers, the treatment material became very hard, I think it was a PVC treatmenr.
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