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WTF?

Really, have to be something of an idiot to use a hard setting glue (foam, etc) in place of what's supposed to be a thin and light, FLEXIBLE connection. (responding to pics teal'c just posted. What can I said, they made me mad.) Even if you CAN remove it later.
 
HiFi in WYO said:
View attachment 1324425

This stuff is hard as a rock. There's no getting it off. Now that I look closer, it may be spray foam.
Click to expand...
Ouch. Well, still worth trying a solvent before throwing it away. A couple google results indicate acetone should soften the glue a little, but still won't loosen/dissolve it. You would need a urethane solvent to really get it off. No saying what any of those will do to the cone though until you try it.
Worst case, you could maybe find a replacement cone, but probably not be worth the effort on those no name speakers.
 
I'm not going to waste anymore time trying to repair the originals. I ordered new ones. However, the speakers are indeed worth it; they're well made and seemingly contain good components. I've seen named speakers constructed a lot more cheaply than these. They sounded very nice before all of this, nice enough that I had originally planned to put them into the rotation.

Interestingly I bought these at an estate sale with a bunch of albums, a turntable, cassette player and another pair of no-names. I opened those up and they were filled with early Jensens. These sounded better. Ended up selling those speakers for more than I paid for the whole grab. Not too bad.
 
HiFi in WYO said:
I'm not going to waste anymore time trying to repair the originals. I ordered new ones. However, the speakers are indeed worth it; they're well made and seemingly contain good components. I've seen named speakers constructed a lot more cheaply than these. They sounded very nice before all of this, nice enough that I had originally planned to put them into the rotation.

Interestingly I bought these at an estate sale with a bunch of albums, a turntable, cassette player and another pair of no-names. I opened those up and they were filled with early Jensens. These sounded better. Ended up selling those speakers for more than I paid for the whole grab. Not too bad.
Click to expand...

I wouldn't throw away the old ones though. I've gotten hard foam material like that off pretty easily with a grinder using a wire brush wheel, and/or using a wire wheel bit using a dremel tool. I just back off and I'm careful as I get close to the paper cone. Man that was a crazy repair attempt, that's got to be Gorilla Glue, it bubbles like that and expands.
 
I probably won't. I have some shelf room now so they'll go into storage. It would be hard to throw those Alnico magnets away.
 
I couldn’t find any indication on the woofers so I ordered two new ones 8 ohms. While testing tweeters for another project, I tested the one good woofer to make sure my meter was working and found these are 6 ohm speakers. I watched the video about mixing impedance but how about a plain English explanation. Will this work? They’ll be here tomorrow and I can just return them for some 6 ohms. Should have tested prior, freshman mistake.
 
just as a note, using a meter (DMM/VOM) measures the resistance of the woofer's
coils, the speaker's impedance is over the range of frequencies it's designed for
(averaged to yield, say, 8 ohms).
 
M.E.K. will remove nearly any glue, and as a bonus it will put you in a state of mind to make an even more creative repair. Seriously, just replace the woofers.
 
For what I started with these turned out good. Sound amazingly good too.

1542056409283269459678.jpg 1542056451371-37794415.jpg
 
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