| audiothings |
my clumsy self has dented my beloved fostex fx120. what can i do? sleepless nights here...
thanks, |
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| Iain McNeill |
I fear you will have to remove the dust cap and glue a new one in.
Here in California, there's a company called Dent-Pro that has done wonderful things for door panel dings on friends cars. (me I collect them like trophies) They might have some tricks to pull that dome out.
The worry is overstressing the compliant surround & spider which is why surgery with a sharp blade may be kinder. |
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| Iain McNeill |
actually, I should have said:
if you can live with the hideous sight of your deeds then do nothing. I doubt this has much effect of the speaker performance. |
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| es44 |
| quote: | Originally posted by audiothings
my clumsy self has dented my beloved fostex fx120. what can i do? sleepless nights here...
thanks, |
If you can find a piece of rubber hose, you can try to suck the dent out carefully by mouth.
I've even heard people claim that a vacuumcleaner can be used, as long as you are able to reduce it's power.
Good luck.
Ebbe |
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| ianc13 |
The other option if you are really careful is to use some sticky tape to stick onto the dome and try to pull the dust cap out that way.
Need to be careful though and hold the cone with the other hand, if it feels like you are putting too much pressure on the cone/dome then try something else.
Just had to do the same after my little boy put a dint in one of my brand spanking new FE138ES-R's :( - time for me to make a removable grill to keep little fingers away!
Again good luck.
Ian |
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| rjbond3rd |
| quote: | | Originally posted by es44 I've even heard people claim that a vacuumcleaner can be used, as long as you are able to reduce it's power.[/B] |
Here's my cautionary vacuum cleaner tale. A few weeks ago, I cut a port hole in an existing box, and when I put the vacuum hose inside the port hole (to get out the sawdust), whoosh! The paper cone on the nearby tweeter disappeared in an instant. I was left staring at the tweeter's naked basket and magnet. Oops. |
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| David Whistance |
My sons have done this to some FF165's I have in our living room. I have found that a vacuum cleaner works really well taking out the worst of the damage, however you are left with small telltale creases afterwards. I always use the vacuum on low power.
David Whistance |
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| Nelson Pass |
| Sticky tape does work with Aluminum dust caps. |
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| SY |
| In cases of Extreme Unction, a thin bare wire with a tiny drop of cyanoacrylate at the end can work, though possibly leaving a small scar. |
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| moray james |
| that the CA adhesive can be easily cleaned up after with a Q=Tip and some Acetone. Good luck what have you got to loose? |
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| SY |
| Depends on the dome material; acetone can do Bad Things to many of them. In those cases, I use a VERY thin wire (like wire-wrap wire) and once the dome is pulled out, trim it as close as possible. |
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| badman |
| quote: | Originally posted by Iain McNeill
actually, I should have said:
if you can live with the hideous sight of your deeds then do nothing. I doubt this has much effect of the speaker performance. |
Unfortunately, this type of driver generally relies upon a slightly decoupled dustcap as a dome radiator to extend the frequency response. Suggestions are good, but make sure you give it a good listen, and if you can hear the difference between damaged and undamaged units....
you may have to pony up. OR damage your other unit similarly) |
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| audiothings |
| quote: | | OR damage your other unit similarly |
:D :bawling:
thanks a ton for the ideas guys. much appreciated.
any more suggestions are welcome. meanwhile, i'll get into whats on offer at this time. (not near my speakers right now). will report back, |
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| loninappleton |
Since this is a dustcap thing I would ask Scottmoose or Planet 10 Dave
what options there are for a phase plug. Installing one of their custom phase plugs would restore the aesthetics (no reynolds wrap look on
the front) and possibly turn a lemon into lemonade.
The best of the suggestions is to listen in a/b test mode of both your units and if no audible difference is noticeable, leave well enough alone. |
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| moray james |
that thin metal dust cap is where your high end is comming from on that driver. Take it off and buy a tweeter. That would probably be a good option just so long as you know that you will need the tweeter.
Twisted man with a deformed hand says "oh god please make one hand like the other" poof both his hands are now deformed! Be careful what you wish for like they say. Break em both, I had to laugh at that suggestion. |
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| Nihilist |
Try the tape trick , been there done that. It works.
Personally, I'd be scared to vacuum the dustcap on that small of a driver.
...........................Blake |
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| audiothings |
| quote: | | Since this is a dustcap thing |
ok. since i am down many drinks i will ask one stupid question which will reveal exactly where i am... please forgive me you guys who know what the scene really is.
what exactly is (was) the shiny thing i just screwed up? was it a mere dustcap? somehow i thought it would make a difference to the high frequency dispersion within the room... please correct me! or tell me it makes no difference :) |
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| Cal Weldon |
| That shiny aluminum thingy is the dust cap to prevent things from entering the motor. If it attached to the cone, that's about all it does with the exception of a little more high end extension. If it is coupled to the coil, it will extend the high frequencies like a pseudo tweeter. I don't know that driver and the pic is so small as to not help identify, especially with these old eyes. |
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| robertvalk |
One of my friends 'accidentally' dented one of my paper cones. I put a bit of instant glue on my finger and put it onto the driver. Then i gently pulled the dent out. Since you have contact with your finger, you can accurately pull the dent out.
I don;t know the english word fot the glue, but the translation from dutch would be "seconds glue" |
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| moray james |
Oh no Mr. Bill quick go get some acetone to free my finger. Oh no Mr. Bill's not home. I'll be right here til you get back.
That is not a bad idea as you now have tactile control of what you are pulling.... I will stop there. |
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| SY |
| Robert, that's the cyanoacrylate I mentioned earlier. Although strictly speaking, it's just one particular brand, most Americans will refer to any instant glue like that as "Krazy Glue." |
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| Cal Weldon |
| quote: | Originally posted by SY
"Krazy Glue." |
AKA Super glue. |
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| Scottmoose |
| Ah yes, but the question that springs to mind is how do the drivers sound with your finger welded to them? :D |
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| moray james |
| you know finger ...point ... ya the music is now so precise I can hear every instrument and put my..... |
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| gurley123 |
Whatever method you use, don't let that driver intimidate you. If you go into the job thinking "oh man, Please don't let me screw this up any more!" Your hands will shake and your mind will not be on the task at hand. Sure you and that driver have had some good times together and it would be a shame to further damage it, but I find it best to approach the job with a certain amount of authority or confidence.
When I first assembled my DAC all I could think about how much I had spent on the board and how I didn't want to wreck it. Guess what? I wrecked it. So when they said how to fix it, I was able to do it much better because I had nothing to lose at that point. My hands were much steadier and things went smoothly.
So my advise is, Don't let that little driver boss you. Be the boss and you'll have a better chance at success. Although YMMV.
Good luck. |
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