crushed dust cap

[moe32274]

My "friend" accidentally crushed in the dust cap on the woofer of one of her speakers so that it is now concave rather than convex. How do I go about popping it back out?

Thanks in advance.

 

[jeffsg4mac]

My "friend" accidentally crushed in the dust cap on the woofer of one of her speakers so that it is now concave rather than convex. How do I go about popping it back out?

Thanks in advance.

Well if that woofer has a vented pole piece you might be able to do from the back. That is one way.

 

[jaxvon]

You can also try using a vacuum with a hose on low power. I've seen that one work before too.

 

[moe32274]

No such luck

Nope - it's entirely closed. I do not want to open the damn thing unless I know what I am doing.

 

[jeffsg4mac]

Nope - it's entirely closed. I do not want to open the damn thing unless I know what I am doing.

A vented pole piece you wont see unless you take the woofer out. Most are not but there are some that are. usually higher-end stuff.

 

[moe32274]

I don't know if it has a vented pole piece - but again, I'm afraid to open it up unless I know what I'm doing. Anyone care to hold my hand here? Or are there any other neat ideas?

 

[chikoo]

push that dust cap in nice and smooth and make it look as if the concave is from the factory.

 

[Cygnus]

I also hear that you can use a needle from a sewing kit (you know, the small kind) and poke it in at the lowest point on the cap, point it upwards and pull out. I havent tried this myself but its supposed to work.

Also, apparently duct tape is supposed to work: put it on the cap, let it set for a while and gently pull outwards....i havent tried that either but i need to since i have concave dust caps too

 

[scenaria]

it wont hurt anything... just push the other one in to match you can do more damage trying to get it out than if you just leave it alone.

the other thing is a shopvac hose (NOT a shopvac) and use your mouth for suction... that way you can control it..

 

[annunaki]

OK, I have seen this and fixed this multiple times. Do not poke holes with pins and the like. Is the dustcap polypropylene? Is it cloth? What size is the speaker?

In most cases, with a poly dust cap, duct tape works great. You will need a few things, a hair dryer (one that blows hot air), duct tape, and a scissors. Cut a length of duct tape 6" or so. Make sure the dustcap is free from dust and dirt. Warm the dust cap of the speaker and the tape with the hair dryer. Once warm to the touch, apply the tape over most of the dust cap. Press down gently so as to make sure the tape is sticking well. Let it sit for a couple minutes. Then, abrubtly and quickly remove the tape, with some force, in the opposite direction of the dent. It should pop it out. It has not failed me yet.

 

[majorloser]

Been there done that many times.

Use low tack tape or roll tape up and stick to you arm or pants first to get rid of some tack. Duct tape is too tacky to start with. Work your way up in tack. Be careful since the caps can be ripped off, more so with paper. Suction works. Use your mouth and suck lightly.

If it's a small dome, I've super glued the tip if a toothpick on it and just as is dries pull it out. The toothpick will usually pull off without further removal. If you let it dry too far, a small pair of side cutters will clip it off smooth.

A dented dome looks worse than it really is. Mostly cosmetics.