red1302 Posted March 28, 2020 Share Posted March 28, 2020 For those of us with CF-3 speakers, is it appropriate to secure the rear baffle with wood screws along with an adhesive? I ask because one of the rear baffles has separated from the cabinet. Quote Link to comment Share on other sites More sharing options...
dtr20 Posted March 31, 2020 Share Posted March 31, 2020 If its anything like the KLF series (which I believe it is), remove the rear baffle using a heat gun to loosen the glue if need be. Scrape all of the all glue off, again use a heat gun if necessary. Use liquid nail in the seam for adhesive. Try to get some excess adhesive to ooze out into the cabinet so you can run your finger along the edges of the seam from the inside to get a nice seal. There should be no need for screws, just make sure the panel is clamped down well. I used kettle bell weights across the panel. I suggest doing the front and rear at the same time. If the back is loose, the front probably is or will be. When letting the liquid nail set, I used 2x4s that were shorter than the cabinet and laid the cabinet on it to put even pressure across the rear baffle, and laid 2x4s across the motorboard in a similar manner, then stacked the kettle bell weights on the 2x4s. Let the liquid nail set for 7 days (that is the proper cure time). Quote Link to comment Share on other sites More sharing options...
avguytx Posted April 2, 2020 Share Posted April 2, 2020 I took the backs of mine completely apart and reattached them and also did some extra bracing. Made them much more solid. I've sold them since but they are great speakers. Quote Link to comment Share on other sites More sharing options...
001 Posted April 2, 2020 Share Posted April 2, 2020 i would say no to wood screws, will look tacky & probably ruin resale value. do as explained above & reglue them. if they aret really loose you can just put a big bead of liquid nails or i like gorilla glue & thats should hold them for good. i did that to a set of KG 5.5's that rattled on heavy bass beats, fixed them for good & still going strong 15+ years after selling to a friend. if there is a black coating called mellamine (sp) you want to remove it if possible or sand it with very coarse 50-80 grit paper to give the new glue something to bite into. think they sell a special glue for that too. Quote Link to comment Share on other sites More sharing options...
avguytx Posted April 3, 2020 Share Posted April 3, 2020 (edited) I used wood screws BUT they were on the inside as I made 3/4" glue blocks all around the inside of the back so I could glue & screw the back panel on from the inside. I think I have pictures somewhere and I'll post if I can find them. I did the same mounting on the back panels of the KLF-30's I had that suffered the same issues. Edit...found the pics. The original glue job inside on mine was awful. It looked like it was done on Margarita Friday at 4:45pm. Original glue job... Redone... Edited April 3, 2020 by avguytx Quote Link to comment Share on other sites More sharing options...
red1302 Posted April 8, 2020 Author Share Posted April 8, 2020 The baffle fell completely away from the rest of the cabinet. Thanks for the recommendations. I'll probably do a combination the the suggested procedures. Quote Link to comment Share on other sites More sharing options...
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