Repairing Rip in Subwoofer edge?
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=31385
Printed Date: May 15, 2025 at 9:40 PM
Topic: Repairing Rip in Subwoofer edge?
Posted By: RTDopp
Subject: Repairing Rip in Subwoofer edge?
Date Posted: May 01, 2004 at 11:06 AM
Ok guys, I am really in need of some help here, so hopefully someone out here can. Here is the deal. I have a MMATS Juggernaut 12", brand new. As I was screwing it into the box, the drill slipped off the screw and poked into the foam surrounding. It is not very big at all, and it's not an actual hole, but if you pull back on the rip you can feel from the back you can tell that it punctured all the way through. What I'm thinking is maybe using epoxy to just seal it up so there is no air leaks and so in the future it wont get bigger. I have some 2 TON Epoxy (the kind where you mix the hardner and resin), but am afraid that the epoxy may eat through the foam. Does anyone know what else I can do to fix this, or know if the epoxy will really eat at the foam or not? Any and all help will be greatly appreciated. Thanks in advance! Ricky
Replies:
Posted By: kickerstang
Date Posted: May 01, 2004 at 11:11 AM
there's not to much you can do and i don't think that's gonna be covered in your warranty so i'd just throw it in and go, i don't think it's gonna cause a huge difference in sound
-------------
what!?!?! you want some??
Posted By: DYohn
Date Posted: May 01, 2004 at 12:02 PM
No no no, actually it will indeed cause a huge problem in the sound. A ripped surround will not only affect the movement of the cone it will also create an air flow path and your enclosure is no longer effective. It will not only sound like crap, you can blow a speaker operating it this way. Get the surround repaired. DO NOT just glue it up yourself. And yes, epoxy will eat the foam and just make it worse. Do a web search for "Speaker reconing" in your area and see if there is a shop that can replace the surround. If you do want to try and fix it yurself, go to Parts Express and order one of their generic foam surround replacement kits. It will not be as good as original but it will allow the speaker to work properly. ------------- Support the12volt.com
Posted By: dudek38
Date Posted: May 01, 2004 at 1:29 PM
thats kind of funny that you did that. thats my biggest fear when mounting speakers. i always put my hand in the way(over the speaker) if the screwgun were to slip. if i were you i would send it to mmats and get it fixed right. you are going to put that speaker through hell and it needs to be at its best. if you had to repair it right away, i would use silicon to patch up the hole (front and back) and get replacement surround and silicon a 1" piece over the wound. do the best you can do. for piece of mind.
-------------
owner of
Motion Marine & Car Audio
the florida keys
Posted By: speedwayaudio1
Date Posted: May 01, 2004 at 9:06 PM
Once again DYohn has words of wisdom. Do just what he said and you can salvage that sub. I know that sucked when you did that. When you mount a sub, if you will put the sub in the hole. Then move it till it's where you want it. Then mark your screw holes with a fine point marker. Then drill small pilot holes. That will make it so you can start your screws by hand, and when they are started good you can use the screw gun. ------------- Big Dave
Posted By: flatulatta
Date Posted: May 02, 2004 at 12:05 AM
i did that with some infinity kappas..by accident...didnt tell my friend bout it and it still sounds crystal clear...but thats a 6.5
Posted By: stevdart
Date Posted: May 02, 2004 at 12:43 AM
...........umm, I think your friend knows about it now!  ------------- 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: alex75
Date Posted: May 02, 2004 at 9:08 AM
All it takes is one slight false move to stab a speaker sending it to an early grave. I've done this twice(D'oah!), once to a Pyle(who cares!) sub and once to a Kove 10 that I loved. In both cases, I used black silicon glue to carefully repair the tear. The Kove continued to beat my trunk for 2 years before finally succoming to it's wound. The Pyle sounded horrible with the repair. I could plainly see that it was not moving properly and distorted very easily. Now when mounting a sub I place a round wooden template over the sub leaving only the screws exposed, kinda like a bullet-proof vest for the sub. My best advice, be more careful!
Posted By: NINsane18
Date Posted: May 02, 2004 at 4:23 PM
I hate that sinking feeling you get after doing that :( I am with dudek38, I position my hand to take the brunt if the screwdriver slips. Thank goodness it was on one of my first subs, a Legacy 12" sub, and the repair would be more than the sub. I lucked out on using silicone as well, but thank goodness thats been the only time I have done that.
-------------
Tim-May!
Posted By: eeh1025
Date Posted: May 02, 2004 at 8:30 PM
hey there i did that to an infinty kappa 6x9 but i put a hole in the cone, Will that bake a difference in the way it preforms and what can i do about it.
Thank
Posted By: DREAMWEAVER01
Date Posted: May 02, 2004 at 9:07 PM
RTDopp wrote:
Ok guys, I am really in need of some help here, so hopefully someone out here can. Here is the deal. I have a MMATS Juggernaut 12", brand new. As I was screwing it into the box, the drill slipped off the screw and poked into the foam surrounding. It is not very big at all, and it's not an actual hole, but if you pull back on the rip you can feel from the back you can tell that it punctured all the way through. What I'm thinking is maybe using epoxy to just seal it up so there is no air leaks and so in the future it wont get bigger. I have some 2 TON Epoxy (the kind where you mix the hardner and resin), but am afraid that the epoxy may eat through the foam. Does anyone know what else I can do to fix this, or know if the epoxy will really eat at the foam or not? Any and all help will be greatly appreciated. Thanks in advance! Ricky
Why not just get a surround repair kit. they are around 10-20 bucks ------------- I remain.
Dreamweaver.
M.E.C.P. Master Installer
A+ Certifacation
F.C.C. Technician
C.E.T.
Roku-Dan @ Part time Ninjutsu Instructor.
Posted By: osokrayzay
Date Posted: May 02, 2004 at 9:11 PM
My nephew took a screwdriver into my 13w7 cone, while i was placing my wire. It crakacked and left a 1 inch cross shaped crack. Took some jb weld and slapped it on there and all is good.
Posted By: flatulatta
Date Posted: May 02, 2004 at 9:26 PM
to answer the Q about the infinity i did the exact same thing and it played just as well as the other one... so its all kool
Posted By: RTDopp
Date Posted: May 03, 2004 at 8:35 AM
To you peoples that said you use your hand kinda as a guard and to guide it, I did that to, it went into the sub asfter drilling a 1/8" hole into the skin between my thumb and pointing finger. The goudge is approxamantly at the most a 1/4 of an inch long. Like I said, it's NOT BIG AT ALL. I will try to get a picture of it to pst, untill then , thank for everybodys input, and I welcome everymuch more. Thanks guys/gals!!!
Posted By: DYohn
Date Posted: May 03, 2004 at 10:31 AM
Dude, don't be a fool. An MMATS Juggernaut is a $700 SPL monster woofer. Get the surround repaired for crissakes, or you will be hating life soon. This speaker can pound out dbs and the cone moves a LOT of air, which means lots of pressure and lots of flexing on the surround. The hole you punched will only get bigger and the speaker will eventually fail. It will also not perform anywhere near its capabilities with a damaged surround. Don't use RTV or any other glue, get it fixed by an authorized service center. Spend $200 now to fix it rather than another $700 in a few months after the speaker fails. This to me is a no-brainer!! ------------- Support the12volt.com
Posted By: RTDopp
Date Posted: May 04, 2004 at 8:18 AM
OK, so i guess I'm not explaining it that well. I have hooked up the sub and there is no difference with that little goudge being in there. Actually, it doesnt leak even the slightest amount of air out of it. It's almost like it punctured half of it, but at the back end, it just made a "flap" that if you pull you can then tell that it went all the way through. When playing, no air leaks what so ever. I just want to seal it so it doesnt rip in the future. I just looked at it again, and the size is almost the size of a normal size screw that you would use to mount your sub. I will get a pic and post on my next message, proboly wont be till tomarrow morning though, being that I work nights. Thanks for the input!! Ricky
Posted By: f150on22s
Date Posted: May 04, 2004 at 10:59 AM
Ok....I just want to know why it is so hard to put some screws in a box? I'm only 18 and I have never messed up. Just listen to what dyohn says. He knows what he is talkin about.l
Posted By: casedeez
Date Posted: May 04, 2004 at 11:59 AM
I am only 21 and I have not done it either. Thing is some of these guys in here are older and have installed more speakers/ subs than myself. A lot of the guys in here do that most of there days. I would have to say that the more you do something the more likely it is your going to jack it up at some point. Another thing I want to bring up. Regarding "Just listen to what dyohn says." I want to make sure that everyone understands that whenever getting information from other people, make sure you are getting the correct information. Now, by all means Dyohn is pretty damn smart, however a lot of people post on here that are new and dont know or have not read his posts. In my head this forum is a great place to bounce ideas off other people. Dyohn and Rob at Forbidden are two of the best on this forum. Regardless be careful some of the stuff you read because that little hole could possibly lose you a couple bucks. Me being in college and not having mad cash to spend on equipment makes it important I dont break something. Now in no way am I trying to diss on Dyohn, in fact he is probably the most correct in the way to go about your problem. All I am saying is filter the information you get in these forums. All it takes to get access to posting is a email address and username and pass. I would encourage you to get information from several different resources.
Posted By: gumby_55
Date Posted: May 09, 2004 at 5:29 PM
I had the same problem when I was 16 and installing my first system into my truck. I actually used hot glue on the nside and outside edges of the tear and it worked absolutely GREAT! That was 3 years ago and the sub is still going strong except it is now in my little brother car. It was a 10" fosgate HE2. Nowhere near a juggernaut and handles a lot less pressure levels but it might be worth a try. Let us know how it works out. GOOD LUCK!!!
|