Question about Cerwin Vega CLSC-15S Subwoofer
i am Damien from Belgium(English is not so good)and i had a pair of cerwin vega at60 speakers (20years old) but i blow up the woofers(the orange material around is broke.now i bought a pair of dc1515 secondhand and my question is if there is a product that we can put around the woofer(oil or something)so that in a copple of years i wont have the same problem again.(i dont now how to explaine the dammage but the orange/pink rubber around the woofer is broke of the age i think)
The problem is that the foam is affected by the ozone in the pollution we breath, it causes the foam to break down. It is less likely to happen with newer speakers since a minor change in formulation was made to prevent this from happening.
Solutions to your problem, there are two. First there are foam replacement kits that you can get. You remove the old foam and glue on a new replacement. The issue here is that there could be unseen damage to the voice coil, so it could be a short term replacement.
Second option is to replace the speakers, finding the exact Cerwin Vega replacement would be hard at best since the specific driver hasn't been made on 20 years. So you are left with finding a good replacement, that is where I come in, I have a universal 12" driver patterned after the Cerwin Vega woofer, so you will be able to retain the look of the speaker. Better though is that the speaker I have is a much better performer than the standard CV 12" woofer, and it will work in a 4 or 8 ohm system. You can read more about the product at http://www.mavin.com
Now the only true drawback you have is that being over seas, postage is going to drive up the price, and also you should always replace your drivers in pairs, so buy two. Given the age of your speakers if one is still working, it will go bad shortlyt due to the break down of the foam. Further when you change speakers in stereo pairs, both speakers should still sound the same since they contain the same components.
Posted on Aug 20, 2008
It is called "dry-rot" and it happens with age to paper cone speakers. I am not aware of any products made to help prevent this problem. But you can always replace the woofers with new one's or find a place that "recones" speakers and that would solve your problem for a long time. If you have rubber surround on the cones, it would take much longer to have any type of dry-rot problems. The "foam" type of surround on the cones is the worst for this problem. Most new woofers have polypropelyne surround of the cones and it would probably outlast you, so replacement with a good quality woofer really is a good option.
Posted on Jul 08, 2008
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