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Old 25th January 2004, 06:23 PM   #1
Bider is offline Bider  United States
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Unhappy Pushed In Cones

Please tell me there is a way to pull a cone back out that's been pushed in (my 2 year old son). I have a pair of Infinity towers with 6" woofers. The cone appears to be made of a dense foam, not paper.
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Old 25th January 2004, 08:56 PM   #2
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You've probably got nothing to lose now... Try sucking them out by placing a vacuum cleaner in the middle/apex of the dome. I have done this on a few large dust caps.
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Old 25th January 2004, 09:26 PM   #3
Guss is offline Guss  Canada
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I use a flared port as a straw to suck out the dustcap.
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Old 26th January 2004, 12:48 AM   #4
kneadle is offline kneadle  United States
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Default Re: Pushed In Cones

Originally posted by Bider
Please tell me there is a way to pull a cone back out that's been pushed in (my 2 year old son). I have a pair of Infinity towers with 6" woofers. The cone appears to be made of a dense foam, not paper.

No sweat, it's just a mod!

If those two fail, consider poking a tiny hole in the center of it, then inserting a bent safety pin to pull it out.

If that doesn't work either, cut the cone off with a knife, and make a plug.

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Old 26th January 2004, 02:43 AM   #5
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Default wait 'til he hits puberty

let's see, I have survived, at least until now, 3 male youths -- the first set of pushed in cones was in some KEF B110's -- I used the glass globe from a hurricane lamp to suck out the cone!

2 years old, huh, do they still make zwieback cracker? -- the only substance known to man which can't be removed from parental clothing!

when he gets to college you can finally take the grills off your speakers.
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Old 26th January 2004, 09:34 AM   #6
protos is offline protos  Greece
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The best for me and my 1 .5 year old who enjoyed punching my dust caps is a plastic suction cup like the ones used to attach to glass.If you wet it a tiny bit it has great pulling power.
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Old 26th January 2004, 12:17 PM   #7
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for dust caps, I have used 3 methods

1- vacuum cleaner

2- sucked (yep!)

3- carefully placed the corner of a square piece of gaffa tape on the dust-cap, and pulled it back out, gently.
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Old 26th January 2004, 12:37 PM   #8
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I bought a pair of Boston Acoustics T-830s off the showroom floor of a local audio shop (that I was later employed at), and the dust cap for the midrange was pushed in. I tried the vacuum trick with no luck, so what I did was tore off a couple inches of duct tape. I pressed the duct tape firmly onto the dustcap without causing it to indent any further, then I simply tugged on the duct tape. The dustcap pulled right out, and I peeled the duct tape off.

Later on when I worked at the same store, I fixed MANY dustcaps the same way. It works great regardless of whether it's a soft dustcap like it was on my Boston, or a firm one like on larger woofers, because you can press as hard as you need to on the duct tape.
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Old 26th January 2004, 12:58 PM   #9
Bull is offline Bull  United Kingdom
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Default reply

Five methods of restoring dust cap to normal shape.

1. speakers with vented pole pieces are good because you take a thin paint brush and push it through the vented pole piece and stroke back the dustcap with the brush.

2. use a very powerful/powerful vaccum cleaner with a small attachment,hold it and switch on[do not do this on tweeters or delicate midrange drivers].

3. use some adhesive tape and stick to the dustcap and gently pull.

4. get a needle,make a small hole in the centre of the cone and push the dustcap back to normal position,then put a blob of glue on pin sized hole on dustcap to seal it up.

5. last resort,remove dustcap carefully and use old dustcap as a template to make new one out of 'sugar' paper or thin felt.
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Old 26th January 2004, 01:01 PM   #10
Vikash is offline Vikash  United Kingdom
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Yes, I have to vote for the tape method too. It's worked for me on many occasion (again caused by a 2-3 year old - why do they find it so appealing!?!)

If it's an uncoated paper dustcap then I would be inclined to try the vacuum first.
"The human mind is so constituted that it colours with its own previous conceptions any new notion that presents itself for acceptance." - J. Wilhelm. (But I still think mine sounds better than yours.)
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