BuyOtherSoundEquipment Posted July 18, 2009 Share Posted July 18, 2009 Hey guys, I've searched the forum but didn't find any info that really related to the problem that I'm having. I bought a Velodyne VA-1512 from HudsonValleyNoah about six months ago, and just tonight during a bass-heavy listening session, a 2" portion of the foam surround detached from the cone, causing an extremely loud flapping noise. I'm not surprised it happened, the sub was built in 1997 and I was flogging it fairly heavily. I'm hoping a full surround replacement isn't needed. Anybody have ideas on how best to cheaply and effectively repair it? I can take a picture if it helps, but I figure it's a pretty self-explanatory situation. Quote Link to comment Share on other sites More sharing options...
Brac Posted July 18, 2009 Share Posted July 18, 2009 nope no patch just have to recone, but it is quite easy to do. Quote Link to comment Share on other sites More sharing options...
Rich_Guy Posted July 19, 2009 Share Posted July 19, 2009 If the foam itself is not damaged but simply detached you could try re-gluing it. Quote Link to comment Share on other sites More sharing options...
Marvel Posted July 19, 2009 Share Posted July 19, 2009 Yup... post a pic. If the piece fell out maybe not. Otherwise, it CAN be patched, i fyou are will to spend a little time and $5. Bruce Quote Link to comment Share on other sites More sharing options...
Brac Posted July 19, 2009 Share Posted July 19, 2009 Aparently there is a trick, I don't know. Someone fill me in. Quote Link to comment Share on other sites More sharing options...
ace168516 Posted July 19, 2009 Share Posted July 19, 2009 If the surround has just come undone from the cone, just pick up a small bottle of the polymer glue from parts express...apply to back of surround and front of the cone...keep sepearated for 5 minutes till tacky, then press together, clamp with clothes pins (assuming you take the driver out) Replacing the entire surround is not a horrible task either...never done it on a larger driver, but have done it on 8" ones and they turned out great the first time. Just take time and be patient. Quote Link to comment Share on other sites More sharing options...
Professor Thump Posted July 19, 2009 Share Posted July 19, 2009 What type of cone material? Plastic, Aluminum or paper? Quote Link to comment Share on other sites More sharing options...
fastlane Posted July 19, 2009 Share Posted July 19, 2009 Even if the surround has to be replaced, not to worry. It is really not difficult to do. I have done several woofers. If I can do it, so can you. Quote Link to comment Share on other sites More sharing options...
BuyOtherSoundEquipment Posted July 19, 2009 Author Share Posted July 19, 2009 Here's a shot of the damage. The cone is paper. Quote Link to comment Share on other sites More sharing options...
greg928gts Posted July 20, 2009 Share Posted July 20, 2009 Like ace said, that's an easy glue repair. Unless the surround itself is starting to become brittle, but it doesn't look bad in the picture. Even so, it's pretty easy to replace the surround when the time comes. Greg Quote Link to comment Share on other sites More sharing options...
Professor Thump Posted July 20, 2009 Share Posted July 20, 2009 That should be easy to fix. Use a flexible glue that leeches paper. My recommendation is a poly vinyl acetate (Elmer's paper glue). Any excess between the joint can be brushed onto the surround until it is a thin coating. Quote Link to comment Share on other sites More sharing options...
Brac Posted July 20, 2009 Share Posted July 20, 2009 Yep, easily fixable, that not what I pictured from the original story. Quote Link to comment Share on other sites More sharing options...
ace168516 Posted July 20, 2009 Share Posted July 20, 2009 From looking at that picture, I would also add before undertaking to clean away the left over glue on the cone...there could be some foam on there that would not adhere as well...couple scrapes with an xacto knife will do the trick, or if you want to get fancy, a cotton swab with some high % rubbing alcohol and it should peel off. I would also kinda gauge the condition of the rest of the adhesion...if it peels off like it isn't there, you may want to peel and reglue the whole thing, so the other side does not blow out in a month. ACE Quote Link to comment Share on other sites More sharing options...
BuyOtherSoundEquipment Posted July 20, 2009 Author Share Posted July 20, 2009 That's not a very accurate representation. On closer inspection is appears that the damage is a bit larger than I had originially thought. Unfortunately it looks like the surround is torn. [] Quote Link to comment Share on other sites More sharing options...
ace168516 Posted July 20, 2009 Share Posted July 20, 2009 The size of the seperation is not an issue, however in this updated photo, just the the left of the quarter, I can see a tear in the actual surround, so you are going to want to replace the whole surround. ACE Quote Link to comment Share on other sites More sharing options...
ace168516 Posted July 20, 2009 Share Posted July 20, 2009 This kit from PE has all you need. It has 2 pairs of surrounds for different styles...one of them has a flat set and a more angled set, from the looks of the basket and driver, I think the angled one will be the one you want, but whatever test fits better is the one to use. http://www.parts-express.com/pe/showdetl.cfm?Partnumber=260-930 Quote Link to comment Share on other sites More sharing options...
BuyOtherSoundEquipment Posted July 20, 2009 Author Share Posted July 20, 2009 Yeah, it's looking like I'm going to have to bite the bullet and replace the surround. That kit is not a bad price at all. Thanks for the link, Ace. Quote Link to comment Share on other sites More sharing options...
Professor Thump Posted July 20, 2009 Share Posted July 20, 2009 Naw... You can repair that surround. Scrap the foam off the cone if it will come. I wouldn't use alcohol since it might dissolve the foam surround. Use a cotton swab to spread the glue or a small flat brush. Press the halves together. Where it is torn you can use some thin foam backed with adhesive to cover the hole this will keep it from tearing. If you try to use a new off the shelf foam surround chances are the replacement won't fit properly, so you might want to go to the companies warranty center and get a replacement. Good luck! Quote Link to comment Share on other sites More sharing options...
djk Posted July 20, 2009 Share Posted July 20, 2009 Just buy some Weldbond and fix the original. Quote Link to comment Share on other sites More sharing options...
BuyOtherSoundEquipment Posted July 20, 2009 Author Share Posted July 20, 2009 Thanks for the tips guys, I'll give a go at repairing the original before attempting to replace it. I've went ahead and removed the driver from its enclosure. Is weldbond the only thing I should use or would something like gorilla glue or loctite be appropriate as well? Sorry for all the annoying questions, this is my first attempt at DIY speaker repair. Quote Link to comment Share on other sites More sharing options...
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