I don't know much about speakers, but this can't be good… (broken magnet content)

[ex-250]

I don't know much about speakers, but this can't be good… (broken magnet content)

I've owned this 412 for a few years now. One speaker never sounded quite right, quieter than the rest but I got a good deal on it and it sounded nice altogether so I never looked into it too far. Over time its only got worse, to the point where lately I was pretty sure there was nothing coming out of the speaker at all.
So I pulled it open and did the 9v test, which is a lot more difficult than advertised when you'd got a nosey cat…




Anyhow, I couldn't tell whether I was getting anything from the 9v due to the speaker's pair so I unhooked the problem speaker. Problem speaker did make a noise, albeit much much quieter. So I took it out to look at it and…






That looks pretty damn awful. Never seen anything like it really. All 3 other speakers work perfectly, zero magnet damage. What the hell happened here?

 

[Nostalgic Distortion]

Re: I don't know much about speakers, but this can't be good… (broken magnet content)

Re: I don't know much about speakers, but this can't be good… (broken magnet content)

My guess, the speaker got dropped or experienced some kind of trauma at some point that gave it a hairline fracture (perhaps the reason you got the deal on it) & overtime the vibrations within the cabinet broke it more??? Ferrite is extremely hard which makes it pretty brittle, even if that particular speaker wasn't pushing air it could be ripped apart just by sitting inside the same cabinet & picking up the other speaker vibrations.... In any case I'd say it's dead! I don't think there's any paper patch method out there that's gonna fix that??? How many ohms was it just out of curiosity???

 

[ex-250]

Re: I don't know much about speakers, but this can't be good… (broken magnet content)

Re: I don't know much about speakers, but this can't be good… (broken magnet content)

8 ohm.

Yeah I'm quite sure its dead for good. Need to grab a replacement asap as I hope to sell this beast and go smaller.

 

[Nostalgic Distortion]

Re: I don't know much about speakers, but this can't be good… (broken magnet content)

Re: I don't know much about speakers, but this can't be good… (broken magnet content)

The reason I asked was I've got a brand new 16ohm Seventy/80 that I pulled out of my DSL that I have absolutely no plans for, I would have been happy to give it to you as long as you paid for its shipping???

I knew 16 ohms in a 4X12 was a long shot but I figured it was worth asking...

 

[ex-250]

Re: I don't know much about speakers, but this can't be good… (broken magnet content)

Re: I don't know much about speakers, but this can't be good… (broken magnet content)

Thanks for the offer at least. I keep seeing a bunch of deals on 16 ohm'ers, including V30s (and if I'm selling I want to use a V30) but really nothing in an 8 so far. Funny how that works.

However I'm still gonna bring it to practice Weds, I have a G12H30 (8 ohm) in my home setup that I'll put in here temporarily. Should sound pretty nice.

 

[GuitarDoc]

Re: I don't know much about speakers, but this can't be good… (broken magnet content)

Re: I don't know much about speakers, but this can't be good… (broken magnet content)

I think the cat did it.

 

[ehdwuld]

Re: I don't know much about speakers, but this can't be good… (broken magnet content)

Re: I don't know much about speakers, but this can't be good… (broken magnet content)

Frigging cats