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Old 24th January 2003, 12:56 PM   #1
kneadle is offline kneadle  United States
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Default damaged cone usage (push push?)

Hi all,

I have 4 MCM 55-1855 drivers, two of which had their cones mashed in by my poor little brother (he's poor 'cos now he owes me his very soul). At any rate, that's a whole lot of speaker just going to waste.

I wanted to challenge myself with my next DIY project, and I was wondering if there was any use for those things in some kind of configuration.

In summary, I have 2 "working" speakers and 2 "ruined" speakers, but it seems like the ruined ones could be useful for something in tandem with the working ones.

Any ideas?

Dave
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Old 24th January 2003, 12:59 PM   #2
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Pictures please, I like pictures
If you post doesn't contain pictures, chances are I won't read it..
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Old 24th January 2003, 01:02 PM   #3
kneadle is offline kneadle  United States
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no big loss. You're like most Aussies I know.

heh heh heh
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Old 24th January 2003, 01:16 PM   #4
Bose(o) is offline Bose(o)  Canada
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If there aren't any wholes maybe you could use the "ruined" MCMs for a passive radiator. Iso box?

If there are wholes in the cone then maybe you could seal them up with saran wrap or duct tape...then use the above suggestions.
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Old 24th January 2003, 01:20 PM   #5
kneadle is offline kneadle  United States
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here.
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File Type: jpg mcm.jpg (63.6 KB, 327 views)
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Old 24th January 2003, 01:22 PM   #6
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Is that all the damage? that can easily be fixed... its just teh dut cap isn't it? maybe slight cone damage.. can't see teh pics very well..
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Old 24th January 2003, 01:26 PM   #7
kneadle is offline kneadle  United States
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OK. I know the cones are damaged because there's the tell-tale buzzing sound. It MIGHT be slight, but I don't know how to fix that.

What are you viewing these pics on skinny? A 4" monitor?

Dave
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Old 24th January 2003, 01:44 PM   #8
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Quote:
Originally posted by kneadle
OK. I know the cones are damaged because there's the tell-tale buzzing sound. It MIGHT be slight, but I don't know how to fix that.

What are you viewing these pics on skinny? A 4" monitor?

Dave
Is there any damage to teh cones that you can see? I couldn't see any in the pics.. MY MONITOR IS FINE!! If we can see thedamage we can fix it.. lol
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Old 24th January 2003, 01:50 PM   #9
kneadle is offline kneadle  United States
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hmm. I may be using the wrong vocabulary.

So, anyway, the little thingy that kids like to mash in, that's what I call a "dustcap." The voice cone is under that, isn't it?

At any rate, the top speaker in the pic is the one that's mashed in. I tried to set the lighting so you could see the shadows, clearly showing how the one goes in and the other goes out.

That's what I can see. I can hear buzzing.

How do I fix that?

Dave
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Old 24th January 2003, 01:55 PM   #10
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AHH!! your talking about the voice coil... I thought this... Well This can be replaced, but requires some work.... You could go with the passive radiator idea... but that might be harder... Remove the dust cap, and take the best picture you can of the inside... Don't get dust in there.. lol buzzing sound? can you record it? lol
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