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Bronze Member Username: StridergtAthensGreec e Post Number: 17 Registered: Feb-06 | I have a pair of 1970s Philips 30W 3-way speakers. Inside one of them a metal round cap (around 3 cm diameter) was detached from the center of the woofer front surface. How can I glue the metal cap back on to the woofer? Can I use instant glue or will it destroy the woofer's membrane? Is there a special glue for this job? How does the metal cap affect the sound of the speaker, what is its purpose? |
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Gold Member Username: NuckParkhill, Ontario Canada Post Number: 1511 Registered: Dec-04 | It is a dust cover. Glue it back on. Oh, and 1970 called. They want their speakers back. And the van. |
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Gold Member Username: NuckParkhill, Ontario Canada Post Number: 1512 Registered: Dec-04 | In jest George, good luck. |
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Gold Member Username: Jan_b_vigneDallas, TX Post Number: 7733 Registered: May-04 | The dust cap probably isn't needed on these speakers; it only does what the name implies. But, this could be the speakers trying to tell you something. If you must, place it back on the speaker with some contact cement. |
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Silver Member Username: DavidpaPortland, Oregon US Post Number: 138 Registered: Nov-05 | Jan, is this similar to the elmers glue trick? To stiffen woofers back up after years of abuse? Or am I that far off base? |
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Bronze Member Username: StridergtAthensGreec e Post Number: 18 Registered: Feb-06 | How can it be a dust cover since its so small (1.5 inches diameter) and inside the speaker cabinet?!?!?! I had to unscrew the backplate of the speaker cabinet and the low freq speaker itself to find what was loose inside it. I have no access from the front side of the speaker cabinet which is covered with some kind of cloth. I know that it is glued with the low freq speaker membrane (centerspot), because I opened the other -intact- speaker too. It may add some weight or rigidness to the membrane but I do not know what type of glue to use?? |
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Gold Member Username: Jan_b_vigneDallas, TX Post Number: 7734 Registered: May-04 | So far off, one of the Harlem Globetrotters Southpaws could pick off first. |
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Gold Member Username: NuckParkhill, Ontario Canada Post Number: 1538 Registered: Dec-04 | Jan translated says WTF was the first post!? |
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Bronze Member Username: StridergtAthensGreec e Post Number: 19 Registered: Feb-06 | I guess I should not have mentioned the age of the speakers (anyway I love their sound)... But instead of nba trotters jokes I do not get, I could use some help by someone who knows what that thing is... |
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Gold Member Username: NuckParkhill, Ontario Canada Post Number: 1542 Registered: Dec-04 | Sorry, George, I have the idea now. Yes you can reattach the retainer ring with ordinary adhesive. |
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Silver Member Username: Timn8terSeattle, WA USA Post Number: 803 Registered: Dec-03 | http://electronics.howstuffworks.com/speaker3.htm |
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Bronze Member Username: StridergtAthensGreec e Post Number: 20 Registered: Feb-06 | Ok thanx everybody, you were right Nuck, according to Timn8ter's link, it is a dust cap! Since it is not playing any role sonically I won't bother puting it back. The thing is that one of the pair plays a bit louder-brighter than the other (tried with different amps too), and I thought the metallic cap was to blame, but I guess they got tired playing so/for many different genres/generations... |
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Bronze Member Username: StridergtAthensGreec e Post Number: 21 Registered: Feb-06 | nuck it was not the retainer ring your initial thought -dust cap- was the correct one. |
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Bronze Member Username: LoceLilburn, GA Post Number: 36 Registered: Jul-05 | George, for more information about reparing these older speakers, you might consider visiting www. audiokarma.org. |