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dented dustcap

Printed From: the12volt.com
Forum Name: Car Audio
Forum Discription: Car Stereos, Amplifiers, Crossovers, Processors, Speakers, Subwoofers, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=39516
Printed Date: May 29, 2024 at 6:54 AM


Topic: dented dustcap

Posted By: leroy185
Subject: dented dustcap
Date Posted: September 21, 2004 at 10:43 PM

hey i was putting a a pair of 15 w3's in my car and while i was building the box they were down in my room anyway to make a short story shorter my little brother somehow dropped a screwdriver on one of em and put a nice dent in the dustcap anyone have any ideas onhow to get it out?



Replies:

Posted By: boxmaker85
Date Posted: September 21, 2004 at 11:22 PM
uh send it back to JL and make up some freak story about how you live at sea level and put them in a sealed box.  You then took a road trip with your best friends to the mountains and were playing the subs when the stress of the sub playing combine with the lower pressure that you were in while in the mountains caused the speaker/box to try and equalize pressure.  The subs being the weakes part of the system, failed to hold rigid and colapsed under the pressure.  Throw some numbers in the story to make it even more realistic.  Other than that no.  A sub should play with a dent but might not (actually probably won't) sound right.  But yeah as long as it's only a dent. 




Posted By: xtreamcc
Date Posted: September 22, 2004 at 1:10 AM
ur wack boxmaker, u've been up in the thin air too long. Besides, the dust cap is vented out the rear so the pressure would equalize and ur theory holds no ground. Anyway, I'll quit throwing a wrench in ur story hehe. But yeah, it will play w/o any noticable difference. I've actually played an old sony sub w/o a dust cap at all.... it kinda fell off lol. But if u wanna pop it out and make it look normal the only way to do that is to first try pressing other areas around it to see if it will pop out, and if all else fails and ur despirate get a little pin and poke a hole in the dust cap, then use a paper clip and bend it out to where u can slip it into the whole and pull the dent out (same technique body shops use to pull out collision dents).

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"Shiny chrome when used in conjunction with bikini models is particularly effective in inducing brain deficit disorder"

02 Jeep Grand Cherokee

Monster System on its way.




Posted By: dxav
Date Posted: September 22, 2004 at 8:19 AM
Nice plan boxmaker85!

DXAV




Posted By: Wiseguy
Date Posted: September 22, 2004 at 10:59 AM
try a piece of scotch tape and pull it outposted_image     works for me with paper and plasic caps just try and not pull the whole thing off, lol




Posted By: boxmaker85
Date Posted: September 22, 2004 at 12:50 PM

xtreamcc  What?  A sealed box is exactly that it's sealed yes there will be two different pressures on the box.  No matter where the vent for the sub (unless it's inverted but even then the sub can still colapse... more on that later)  as lon as the box is sealed (hince the word sealed, aka no air leeks)  there will be two differnet pressures.  Now, actually the first story I told was wrong for a regular mounted sub.  The sub should actually go out more (a baloon blown up at sea level will expand the higher in elevation you go)  and the surround will rip.  But then you can say that you have your sub mounted inverted w/ the magnet out and the story will hold correct then.  But honestly i would just stick it in the box and play it.  Nothing you can do w/out damaging the speaker any more.  i think.





Posted By: forbidden
Date Posted: September 22, 2004 at 1:45 PM
Personally if you are in the industry dude, you would not ever be working for me. You are talking about a deliberate act of fraud. Have some common sense. That said though, nice idea, it would never pan out. Take a vacuum cleaner like a shop vac or other and see if you can get it to seal to the dustcap and suck it out. By the same token if the pole piece is vented, gentle (very gentle) air pressure into the back of the pole piece should "pop" it out. Another thing to try would be to superglue a small item like a paperclip end to the sub and "pop" it out. You may have to attach a couple of paperclips to the cone. The idea with the tape is good as long as the tape does not remove the paint off of the dustcap. (some dustcaps this has happened with). After all other things are exhausted, the hole in the dustcap with the paperclip through it like a dentpuller is the next best bet or send it in for service, at your expense of course.

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Top Secret, I can tell you but then my wife will kill me.




Posted By: boxmaker85
Date Posted: September 22, 2004 at 3:02 PM
foridden it's what most of us call a "joke".  I was not seriously recomending that.  If you do send it in with that story though I am under no legal obligations for the consequences.




Posted By: Steven Kephart
Date Posted: September 22, 2004 at 6:14 PM

I'd recomend calling JL and explaining the problem.  I woudln't be surprised if they send you out a new dustcap.  then you just glue a new one over the old one.

Steven Kephart

Adire Audio



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Posted By: forbidden
Date Posted: September 22, 2004 at 6:18 PM

Oh sure......., now it's a joke! Sorry dude, as you are fairly new here I do not know how to take your comments as legitimate or humourus. In the future I'll read your comments a little closer and look for the punch line. That said though, even I joke around and while I may say things that are blatently obvious for all to see, it is easy for someone to take what I say seriously as well, as I did with you. No harm done though.



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Top Secret, I can tell you but then my wife will kill me.




Posted By: forbidden
Date Posted: September 22, 2004 at 6:21 PM
Steven, you just screwed up the balance of the sub, now one is going to be heavier than the other and will lag behind because of the increase in mass due to the glue and the second dustcap. posted_image Maybe it will make that dustcap even stronger and can take a head on collision with a screwdriver much better next time.posted_image

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Top Secret, I can tell you but then my wife will kill me.




Posted By: Steven Kephart
Date Posted: September 22, 2004 at 8:06 PM

The mass difference will be so small that I highly doubt it will be audible.  The tolerances between the two drivers will probably be more significant than this.

But I'm guessing by the "wink" that you are kidding.

Steven Kephart

Adire Audio



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Posted By: 2ndiinone
Date Posted: September 22, 2004 at 8:14 PM
2 words "Duct Tape". If that doesnt work try some 3M interior/exterior double sided foam tape found at home depot heat the tape up a little so it sticks well with a hairdryer. Use the hairdryer to  heat up the dust cap just a little and it should pull right out




Posted By: forbidden
Date Posted: September 22, 2004 at 8:21 PM
Pffff, I never kid, so how's that W7 in your vehicle doing.

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Top Secret, I can tell you but then my wife will kill me.




Posted By: Ravendarat
Date Posted: September 22, 2004 at 8:35 PM
Thats damn funny Rob, to bad the newbies wont catch that one.

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double-secret reverse-osmosis speaker-cone-induced high-level interference distortion, Its a killer




Posted By: Steven Kephart
Date Posted: September 22, 2004 at 10:37 PM

forbidden wrote:

Pffff, I never kid, so how's that W7 in your vehicle doing.

I've put in my signature on other forums that I run dual isobaric Brahma 10's as a joke.  But I don't think anyone got it yet (I'll explain if you need me to). 

Steven Kephart

Adire Audio



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Posted By: heavilymedicate
Date Posted: September 23, 2004 at 1:15 AM

I dont get it, please explain.





Posted By: Steven Kephart
Date Posted: September 23, 2004 at 2:07 AM

Well the Brahma 10 requires a tiny enclosure.  In fact, I run mine in a .36 cube enclosure.  The only point of running subs isobaric is because you halve the enclosure size that is required.  I'll let you figure the rest out. posted_image

Steven Kephart

Adire Audio



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Posted By: stevdart
Date Posted: September 23, 2004 at 7:29 AM
..................Highbrow entertainment.                                    posted_image

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Build the box so that it performs well in the worst case scenario and, in return, it will reward you at all times.




Posted By: jeremyjerm
Date Posted: September 27, 2004 at 11:28 AM
forbidden u need to calm down buddy.    i guess some of us were born witha good sense of humor. then others werent.     and all ur bieng a "gold member" tells me is that u have way to much time on ur hands spent in front of a computer.   shouldnt you be workin of cars or maybe sellin somethin?




Posted By: Ravendarat
Date Posted: September 27, 2004 at 12:15 PM
WOW I dont believe you are giving it to Forbidden. I would watch you step my friend. The man is super knowledgable and very rarly wrong. Just because he has a high number of posts doesnt mean he doesnt do any thing. For what its worth I believe he owns at least on store called forbidden audio and possibly a second. To say he should spend less time on the computer and more time working on cars, to me, shows a total lack of respect as well as a good dose of ignorance being you dont know the mans background. As well as I dont think you need to tell him to calm down because he continuously kids around on here and if he is truly worked up you will know and it will be for a good purpose.

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double-secret reverse-osmosis speaker-cone-induced high-level interference distortion, Its a killer




Posted By: haemphyst
Date Posted: September 27, 2004 at 12:42 PM
Steven, there are other benefits to TRUE isobaric, besides the smaller enclosure... I would have HOPED you already knew that...

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It all reminds me of something that Molière once said to Guy de Maupassant at a café in Vienna: "That's nice. You should write it down."




Posted By: stevdart
Date Posted: September 27, 2004 at 8:28 PM

jeremyjerm wrote:

forbidden u need to calm down buddy.    i guess some of us were born witha good sense of humor.

...but lacking in some more important elements of gray matter!



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Build the box so that it performs well in the worst case scenario and, in return, it will reward you at all times.




Posted By: boxmaker85
Date Posted: September 27, 2004 at 9:22 PM

don't be knockin forbidden.  The guy's good, knows his stuff and will probably show you're a$$ up.  at this place a group of people agreeing is not always happaning.  actually it oftentimes doesn't  but that doesn't mean that all of us are wrong. 

btw forbidden: none taken  posted_image





Posted By: Steven Kephart
Date Posted: October 04, 2004 at 3:52 PM

haemphyst wrote:

Steven, there are other benefits to TRUE isobaric, besides the smaller enclosure... I would have HOPED you already knew that...

Are you speaking of the lowered second order harmonic distortion?  Remember that the Brahma has a flat BL curve, so those distortions are already greatly reduced.  Just look at the THD measurements on our Sadhara compared to the rest of the subs reviewed in the last Stereophile's Ultimate AV magazine to see what I mean.

Steven Kephart

Adire Audio



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