2. speakers
  3. 1092112743

The tweeter on my speaker has a crater...Help

Sorry for the long post, but I hope somebody can help:
I noticed today when I took the grills off from my Monitor Audio Silver 6 speakers, that the tweeter on the one on the right has a large crater, as if it's been pushed in by someone. Now I can't tell if my kids could have banged against it by accident. They are young but very mindful of my audio equipment.
So could it be something else that could have caused the tweeter to distort out of shape? I remember one thing probably about 6 weeks or so ago, listening to a Miles album, that it sounded quite horrible and the trumpet was screeching in my ears. After a few minutes I couldn't pretend to be enjoying myself and had to turn it off. I got busy and didn't think about it any more about it at that time. But today after I found out the problem, just out of curiosity I listend to a Dave Brubeck SACD, and I couldn't tell if anything was wrong (but then I am not very experienced on the listening side of things).

So anyone have any ideas what could cause something like that to happen? And what kind of problems warranty will cover? Money is pretty tight right now so this is very disappointing if warranty does not cover it. I listen at moderate levels, nothing very loud at all. I have the Rotel 1060 amp and the RCD-961 CD player and the Phillips 963SA dvd/sacd player.

Thanks for any help.
schugh
jdcrox
119 posts
 
Hammy, he is talking about a tweeter, there is no cone, only the dome! (At least in any dome tweeter I have seen).
John
bright_star_audio
179 posts
 
Hi All,

Whether the dome is able to be returned to the original shape will depend on the material from which it is constructed. Most Monitor Audio speaker use metal dome tweeters. Once a metal dome is damaged (pushed in or creased) it can never be reshaped to the original condition. A dome made of plastic or woven cloth can usually be returned to normal condition. As some have already suggested, a piece of tape can be adhered to the pushed in section of the dome and will allow you to gently pull it out. Other suggestions listed here that work are the vacuum cleaner (but be VERY careful!) or diassembling the dome from the magnet structure and reshaping it from the inside. Sucking it out with your mouth works most of the time as well but don't let your wife or girlfriend catch you!! Another method that works for a cloth diaphragm is to very carefully "catch" the center of the pushed in section with a very sharp needle and pull the dome back into shape (you should probably try some of the other methods first).

The dome of a tweeter IS the diaphragm. Its main purpose it to produce the acoustic output of the driver. It happens that it also keeps dust out of the magnet gap but that is not its main function. The rounded section in the center of most woofers and many cone midrange drivers is really just a dust cap. It is put in place to keep dust out of the magnet gap and motor assembly.

A pushed in dome is almost never covered by a manufacturer's warranty. You are lucky to have a good dealer that has taken care of you. When everyone here has the next discussion about the value of your local dealer, please remember this situation.

Best Regards,

Barry Kohan

Disclaimer: I am speaker manufacturer.
distortion
571 posts
 
No Mfkeleher, I posted something funny to this thread about that yesterday, but alas, the censors must have thought it was to racy. Or on second thought, maybe I was the only one who thought it was funny.

Janet Jackson has ruined all the fun and "it" wasnt all that anyway. I would have taken the bag of chips instead.
Ag insider logo xs@2x
hammy
176 posts
 
sorry jdcrox, you're right! Wasn't paying enough attention.
More to discover