Mike16w Posted February 15, 2003 Share Posted February 15, 2003 I have seen pictures on this forum where people have lines the inside of their Klipsch speakers with 1/2" fiberglass (?) batting. I can not find any of this material. I have checked the speaker building websights but no luck. Where do you get this material and does it help? I have a pair of Chorus II that I am trying to tweek. Thanks Quote Link to comment Share on other sites More sharing options...
jnorv Posted February 15, 2003 Share Posted February 15, 2003 Try an HVAC contractor. They use a rigid fiberglass in****ation on duct work. Also, try suspended ceiling installers. I bought several bundles of 1/2 inch compressed fiberglass ceiling panels at my local HD. Must have been a fluke since I have not seen it there since. http://www.jm.com/insulation/products/whispertone/OEM_WWallboard_MEO131.pdf JIm N Quote Link to comment Share on other sites More sharing options...
Mike16w Posted February 16, 2003 Author Share Posted February 16, 2003 Jim: Thanks. I have also seen those pictures but have not been able to find it. I tried Home Depot but the thinnest insulation they had was 3 1/2". Hopefully, someone on this forum knows where to get it and how well it worked. Mike Quote Link to comment Share on other sites More sharing options...
Mike16w Posted February 16, 2003 Author Share Posted February 16, 2003 Another thought...What about going to a fabric store and buying some of the quilted material they have. I image it comes with a cotton bating with a covering on both sides. Anyone try this? Mike Quote Link to comment Share on other sites More sharing options...
Clipped and Shorn Posted February 16, 2003 Share Posted February 16, 2003 At Home Depot all the fiberglass insulation is encased in plastic and is thicker than R-11. I found the old style R-11 at Yardbirds in Santa Rosa, CA. It is made for certain remodelling situations where only this old style will fit. Fortunately there still is a company making this older style insulation. I stapled it paper side down on the inside of the cabinets. C&S Quote Link to comment Share on other sites More sharing options...
Mike16w Posted February 16, 2003 Author Share Posted February 16, 2003 Thanks for the advise. Did you hear any difference once you installed the insulation? Did you have any foam or insullation in there before installing the new sheets? Did you remove it? Also, do you remember who made the insulation? I may be able to hunt down a distributer in my area. Thanks Quote Link to comment Share on other sites More sharing options...
Dave in Nashville Posted February 18, 2003 Share Posted February 18, 2003 Mike: You might try Parts Express for the insulation / foam you are looking for. They sell all sorts of interesting stuff to put inside speakers. http://www.partsexpress.com/pe/showprod.cfm?&DID=7&CATID=48&ObjectGroup_ID=137 Hope this helps, Dave in Nashville Quote Link to comment Share on other sites More sharing options...
Frzninvt Posted February 18, 2003 Share Posted February 18, 2003 You aren't really going to gain anything from applying a thin layer of insulation to the interior of your Chorus II cabinets. The Chorus II uses a passive radiator (drone) to extend the low end bass. Adding fiberglass, dacron, or cotton batting to the interior of the cabinet will cause the internal sound waves to reflect slower fooling the woofer into thinking it is in a larger cabinet which is not a good thing when it was acoustically design to be coupled to the passive radiator with a specific set of internal dimensions (acoustic tuning). Your idea would work in a sealed enclosure with no passive radiator (drone). You might just end up muffling the bass response. If your objective is to dampen the internal cabinet walls to deaden them I would use Dynamat or other similar material. However the Chorus II enclosure is pretty solid an does not really require extra dampening. However, anything you add to the internal walls of the cabinet is robbing you of the original internal volume required for optimal performance. If you are dead set on improving something look to internal wiring or binding post or capacitor and coil upgrades. Even these changes could possibly lead to negative results. You must understand the R&D, testing, and evaluating that go into a product before it is introduced to the market. Your best bet is to sit back, toss in a CD, DVD, or record album have a cold beverage in hand and just enjoy. If the Klipsch engineers thought the cabinet would have benefitted from additional batting they would have done it. Quote Link to comment Share on other sites More sharing options...
Mike16w Posted February 18, 2003 Author Share Posted February 18, 2003 Thanks for the information and you are probably right. I had also read that installing a round rod between the side panels would help stiffin up the case and improve the sound. I did that this last weekend and it did help. I may leave well enough alone regarding the fiberglass. Thanks again. Quote Link to comment Share on other sites More sharing options...
Clipped and Shorn Posted February 19, 2003 Share Posted February 19, 2003 For future reference: R-11 Kraft Fiberglass Wall Insulation GP-114 {9 pre cut batts 3 1/2" X 15" X 94"} Georgia-Pacific Corporation (404) 652-5119 C&S Quote Link to comment Share on other sites More sharing options...
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