getting dents out of dust caps!

Amplifiers, effects, pickups, electronic components, wiring, etc.

Moderator: Dave Mudgett

Post Reply
User avatar
Dave Stagner
Posts: 291
Joined: 31 Oct 2007 9:05 am
Location: Minnesota, USA

getting dents out of dust caps!

Post by Dave Stagner »

Last night, while setting up for a gig, my bandmate managed to drop something on my JBL K120 dust cap while loading in,, putting a second dent in it. Does anybody have a way of getting dents out, short of replacing the dust cap or reconing? I still have the original cone and am loathe to recone it, and changing the dust cap seems scary. I have it in a Jerry-style 1x12 cab, so the dents are visible.

It's not the end of the world and I can live with the dents, but it'd be nice to fix them if I can without major surgery to my favorite speaker!
I don’t believe in pixie dust, but I believe in magic.

2019 Excel Superb S-11
1967 ZB D-10
1990 OMI Dobro
Recording King lap steel with Certano benders
User avatar
Larry Dering
Posts: 5847
Joined: 17 May 2013 11:20 am
Location: Missouri, USA

Post by Larry Dering »

I don't know if your's is vented in the back of the magnet but if so I have done it. There are some who just use tape to stick on the center and slowly lift it. I seen others use a shop vac with a rubber end and suction. Gotta be careful with that. I used the blower side and a hose carefully blowing on the hole through the magnet. No need to get a tight fit or you may blow it out too far.
User avatar
Larry Dering
Posts: 5847
Joined: 17 May 2013 11:20 am
Location: Missouri, USA

Here's a couple ideas

Post by Larry Dering »

User avatar
Dave Stagner
Posts: 291
Joined: 31 Oct 2007 9:05 am
Location: Minnesota, USA

Re: Here's a couple ideas

Post by Dave Stagner »

Thanks! I might try that paper towel tube method. I’ve tried tape already and it didn’t work, and I’m afraid of using the vacuum trick.
I don’t believe in pixie dust, but I believe in magic.

2019 Excel Superb S-11
1967 ZB D-10
1990 OMI Dobro
Recording King lap steel with Certano benders
User avatar
Larry Dering
Posts: 5847
Joined: 17 May 2013 11:20 am
Location: Missouri, USA

Post by Larry Dering »

Dave, there was several YouTube videos of different methods available. You will have to do a search. Good luck and post your results.
Steve Hinson
Posts: 3971
Joined: 4 Aug 1998 11:00 pm
Location: Hendersonville Tn USA

Post by Steve Hinson »

I hate that! Happened to me many times-I just lived with it.

SH
Pete Burak
Posts: 6556
Joined: 2 Oct 1998 12:01 am
Location: Portland, OR USA

Post by Pete Burak »

Sorry Man I hate when that happens.
I have some Jerry-style cabs also but had to put a speaker cover on the ones I gig with.
They don't look as cool, but no dust-cover dents.
How exactly did this one happen?
User avatar
Ken Jameson
Posts: 21
Joined: 29 Jul 2012 6:34 pm
Location: Alaska, USA

Dents

Post by Ken Jameson »

I have had good luck with
Using tape.put it over the dent
and slowly pull it upward.
I have fixed my own D 130 that way.
sho bud double neck 8,carter starter rouge 6 string
Fender stringmaster.
User avatar
Stuart Tindall
Posts: 53
Joined: 23 Sep 2008 7:02 am
Location: England, UK

Post by Stuart Tindall »

I've heard of folks using a vacuum cleaner.
Donny Hinson
Posts: 21650
Joined: 16 Feb 1999 1:01 am
Location: Glen Burnie, Md. U.S.A.

Post by Donny Hinson »

The simplest and best fix?

Since almost nobody's really impressed with aluminum dust caps anymore (they're kinda like those fake portholes and little air diverters people stick on their cars), mask the cone and spray the dust cap with flat-black spray paint. That way, nobody will be able to see that it's dented. :mrgreen:
User avatar
Jerry Overstreet
Posts: 14114
Joined: 11 Jul 2000 12:01 am
Location: Louisville Ky

Post by Jerry Overstreet »

Pretty thin stuff. If it's just a mild dimple, masking tape, frog tape, painter's tape usually does a fair job. If there's a crease, it's nearly impossible to get it back to perfect.

I've not had much luck with the vacuum and just fair with tape.

Mine have all been BWs where the magnet can be removed and just gently push the dent out from behind with your finger, but I believe that's not practical with JBLs.

FWIW, www.simplyspeakers.com or perhaps others, sells a replacement dust cap. It's pretty easy to replace if you're careful and handy with a hobby knife as it's not necessary to recone the entire speaker just to replace the dust cap... They also have the adhesive and offer a youtube video tute on the installation

That's probably what I'd do if it were of great distraction, annoyance to me.
User avatar
Dave Grafe
Posts: 4995
Joined: 29 Oct 2004 12:01 am
Location: Hudson River Valley NY
Contact:

Post by Dave Grafe »

Quality gaff tape carefully pressed into the dent and then quickly pulled back has fixed many a dust cover. It's nondestructive so can be repeated to get a complete fix unless the aluminum is badly creased. If the tape method doesn't work the dome can be carefully cut out and a new one glued in place.
User avatar
Kevin Mincke
Posts: 3100
Joined: 27 Dec 1998 1:01 am
Location: Farmington, MN (Twin Cities-South Metro) USA
Contact:

Post by Kevin Mincke »

I've had success with a vacuum and the wand with a layer of towel over it. You have to have good control of the wand and ease in to the area needing to be popped, immediately remove wand when it pops. If already creased, it may not remove that damage.
User avatar
Brian Lenherr
Posts: 152
Joined: 15 Aug 2009 6:04 pm
Location: Colorado, USA

Dent

Post by Brian Lenherr »

I’ve had luck with a toothpick and hot glue. Break the toothpick clean so one tip is flat (not sharp) but you have plenty of length. Put some hot glue on that flat part - a decent little glob. Put that in the middle of the dent. Let it dry and cool. Pull gently.

Works for me every time.

I wouldn’t do this on a paper cone - just aluminum.

Best of luck!
Dale Foreman
Posts: 1002
Joined: 8 Nov 2015 3:46 pm
Location: Crowley Louisiana, USA

Dust Cover

Post by Dale Foreman »

I used my shop vac to suck the dent out of one of my speakers! works well!
Rittenberry Prestige(2)
Post Reply