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Speakers with questionable "upgrades"... post your findings here.

I don't know - the one with the original woofer shows careful work with the OP art (auto correct hits art history there), and the replacement woofers seems to have been used long enough that even its surrounds decomposed. Meanwhile, they didn't replace the tweeters, which suggests enough control no to blow them out over a long period of use. And the cabinets and replacement grills look very nice. Doesn't look druggie to me, though I certainly am no expert.
 
Peoria, IL area, just listed FBM. "Free Porch Pickup, Pair of speakers with real woofer, tweeter, and horn. Rough enclosure but audio sound gem."
Speaker free porch pickup in Germantown Hills, IL
 
Not a port - that's the tweeter cut out. Though it looks like it was engaged to fit the horn. Don't know how a hole impacts the low bass, but it must affect power handling.
 
Not a port - that's the tweeter cut out. Though it looks like it was engaged to fit the horn. Don't know how a hole impacts the low bass, but it must affect power handling.

A hole like that is an improperly tuned port. Especially improper in a speaker that was not designed to have a port, in the first place.

Regards,
Gordon.
 
I was identifying the original purpose of the hole. Certainly you are right that any hole in a speaker enclosure acts as a port. And an improperly designed one, too, hence my comment about the effects on frequency response and power handling.
 
No so much "upgraded" but trashed - but rest assured, they "Still sound fantastic. Tested and working...."

Only $400 NZ pesos.....
 

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Oh my.
I don't know what KEF uses for cone material in that series but not even an attempt to patch from the inside ?
"stiffened metal alloy" - (interwebs say it is Lithium, Magnesium, Aluminum) and that can happen if over driven by too much power for too a long time which causes metal fatigue. It takes a while to do it (30 min+) ...you know: young idiots partying with the volume knob cranked all the way up...
Uni-Q 12th gen exploded-v2.1-en.png
 
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Quite the concentric 2 way....way above my pay grade.
Lol
Yet I'd be one to try some aluminum epoxy and some Coke can skin.

Yup....call me wacky
 
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