Are these speakers damaged? (1 Viewer)

Might be a silly question but your replies are appreciated.
Are the third speakers in the picture totally damaged or they still produce sound?

Thanks

Those are the dust caps.You can buy replacements at Radio Shack.I've always bought inverted, when I've had to replace them.

im talking about the dent in the speakers

here is an image

Wash, rinse...repeat...THOSE ARE THE DUST CAPS.YOU CAN BUY REPLACEMENTS AT RADIO SHACK.I'VE ALWAYS BOUGHT INVERTED, WHEN I'VE HAD TO REPLACE THEM.

Dust caps serve three purposes...1. Keep out dust.2, dust protection. 3. Barrier against dust incursion. They do not...1. Produce sound (what material are they? Paper? Plastic? Foam?)2. Need to be perfect.It takes about 5 minutes of effort and 24 hours of glue drying.If they are not plastic...If you have a shop vac, stick the hose on there and flip the switch on and off real quick. If your shop vac has a large enough tube.

Thanks Sam,
When you talked about the dust caps i thought u meant the big cover that usually covers the entire speaker.
If it won't affect the sound then i don't mind keeping them in peace, i would hate to damage them during the replacement.

I added above...try a shop vac.Basically...If the material responds to your fingers, a vacuum will suck them back out.

Also, if you're worried about the vacuum suction being too powerful, you can use a cardboard tube with some holes poked in the sides between the dust cap and the vacuum hose to lessen the suction.

Alternatively, put the grills back on and try to forget that they look all ugly underneath.

Anybody know why DCs are "out" in the first place?Some companies inverted them to begin with (Mission)...(And yes I know all about Paradigm and their bullet dust cap which creates greater dispersion...supposedly)

Not dispersion, it is to minimize localized distortion caused by the soundwaves reflecting inside the cone itself. The dust cap acts as sort of a "wave guide" helping smooth response. You are more likely to see it on smaller diameter drivers as opposed to larger ones, and different companies may use them or not. Those look to be about 7" or 8" drivers, so it was just a design choice in their driver.

I find that a little maksing tape that you "tack" to something a few times to make it a little less stick and a gentle pull will usually get these out - I use the vaccum as a last resort.

Based on those images, I actually would not expect there to even be much of a difference with them pulled out, but I would still do it because that's how I am

For a sub, the dust cap also provides cooling in the motor. With a solid pole piece, air will rush through the magnetic gap and around the coil as the cone moves in and out.

And then there's these (no dust cover)

http://www.parts-express.com/hivi-m6n-6-aluminum-magnesium-midbass--297-441

And these (phase plug)

http://www.parts-express.com/hivi-f6-6-bass-midrange--297-440

Both type's look cool but I'm not sure what the good/bad is of either design.