How to attach the cone back to the voice coil what type of glue

Figure out if its a blown coil or damaged cone

1. Blown Coil:

The voice coil is the component, which amplifies the current run through the speakers. If you doubt that the coil is damaged, connect the terminals of the coil to a multimeter, and if there is no resistance detected, it could be because the coil is damaged.

2. Damaged Speaker Cone:

If there are no issues with the coil, the next possibility can be a damaged speaker cone, which can be detected easily. In normal condition, since the subwoofer is built on a suspension system, the cone is easy to move. Look for the following signs to understand that your speaker cone is damaged:

• If you could gently take the cover of the subwoofer off and check for the movement of the cone by gently pushing along the sides
• If the cone is rigid and does not move its indicator

Once you make sure that you have a blown subwoofer, the next step will be deciding on how to replace it. Imagine if your subwoofers can be fixed easily with minimal efforts within a set budget rather than buying a new one.



Then

1. Detaching the speakers:

Use a screwdriver to take the speakers from the place where it is mounted and take off the attached wires. After that, separate the surround and the frame by removing the glue on the frame edge by using a small knife or a sharp object like a tester edge. Be very careful when you do this because the frame edges can be damaged.

2. Separate the voice coil and speaker cone:

Using the same small knife or a tester edge, slowly take out the voice coil from the speaker cone. Cut all the terminal wires and keep the voice coil, speaker cone, and spider separately in place.

3. Fixing the new voice coil:

Clean the trapped dust particles in the voice coil gap carefully by using the compressed air. The voice coil is the piece of wire that is attached to the speaker cone, and that is responsible for amplifying the current, which is passed through the speakers. Remove the old voice coil and fix the new voice coil within the space if the problem is with the coil. Place the spider around the new voice coil, replace the spider and then the speaker cone in the middle. Don't forget to apply enough glue so that the cone doesn't come out. Let it dry for about 24 hours.

4. Fixing the speaker frame:

After it is dry, apply glue on the surround to fix the speaker frame and the cone in the right position. Now we are about to reassemble the components of the sub-woofer.

5. Fixing the wires:

Once all the components are put together in the right place, use a soldering iron to connect the old terminal wires with the new voice coil terminal wires, if the voice coil is replaced. If the new cone has no pre-attached wires, use small wires to the terminal wires, and then create small holes in the cone. Place the wires into the holes and connect them to the voice coil using the soldering iron.Now the connection is also reestablished.

Well actually you can repair it your self with geat ease i may add,,

actuall all that can go in the speaker is the coil.. Yep the coil thats all

You will need a coil for it, a dust cap and the cone.
1.) using a knife, cut the cone off
2.) ulsolder the coil from the speaker
3.) resolder the new coil
4.) firmly fit and glue the coil to the new cone
5.) glue the cone to the metal edges of the speaker
6.) glue on the dust cap..
7.) have a beer your done..

You can get the parts at any local electronisc shop, I'd recommend you cut the cone and the coil off and take it with you when buying parts.

Well if it buzzes only for a couple minutes after turn on then it could be when the woofer starts pumping it produces pressure in the cabinet which creates a bonding motion that then closes the cracks, kinda like glue. Like blowing a balloon up in a box. The balloon is the pressure, OR Yes it could be your woofer is going bad. All speakers have voice coils. Tiny wire wrapped around a thin layer of cardboard then attached to the cone. This cone could be getting loose. But when the woofer heats up after a couple minutes it probably bonds the tiny wires so then the vibration or buzzing disappears. Over time woofers can die especially if it produces a lot of distortion, In a speakers life distortion kills and it doesn't matter how much power it can handle or how much money you spent on it.
Not all sub-woofers are alike. Some can handle the really low lows, and some can not. Check your settings too. Over time the vibration of the woofer will start to undo the glue, nails, screws, and even burn through the tiny wires in the voice coil. Oh and make your china crawl across the table... Have you been watching a lot more action movies? Some of the older woofers can't handle the newer digital deep bass frequencies... You may have to reconfigure your setup.

if the cone is stuck, it is possible because the voice coil over-heated. There is really no way to disassemble the speaker without re-coning it. The thing you can do is manipulate the cone with your fingers gently, and it might release. Be careful. hope this helps.

Usually, if you have a wire on the cone that has burned up, (as in looks like it physically caught fire) your coil will have become burned as well. However, for the sake of argument, if the coils were still good, you could...
This is called repairing an open driver.
Start by scraping away the varnish that's used as insulation on the cone where your wires are. Then use a multi meter or ohmmeter to check for continuity. If you get a very low but, solid number reading then look for a lose soldered connection. If you get an infinite reading, you will have to look under the dome.Use a good sharp blade to carefully remove the dome. Use a shallow angle and cut as near the edge as you can. DO NOT PUNCTURE THE PAPER CONE! which may continue under the dome as the voice coil may be of a smaller diameter than the dome. The shallow cut has to be perfect, if the dome is to be reused. Carefully scrape away the enamel insulation as near to the voice coil as possible and test for continuity there. If the resistance is still infinite, the whole thing is trash. There is no way to replace just the voice coil unless the driver has a removable voice coil unit, and this is not one of those cases.
If you get a good reading, look for a
gap or break in the wire, and repair
it by soldering in a patch wire.
Or really, in your case rewiring the
burnt part, in the same manor. Replace
or remount the dome with some glue.
And you'd be good to go after it dries.

first is the voice coil hanging loose from the cone to the terminal because if it is I'd seen people just hot glue it back on the terminal, but if its ripped off or loose from the cone then I'm clueless too...still beginner hope this helps you if not its okay.

It may not be only wires loose; the speaker(or speakers) may be damaged.

The common 'dynamic' speaker has a centered magnet in an assembly that extends the field of the magnet around a coil of wire on a form called the 'voice coil' that is firmly attached to the cone which moves in and out to 'pump' air and produce sound.
The clearances (gap) between the magnet assembly and the voice coil that sits in a narrow space between the magnet and the outer field piece is very small and critical.

Once positioned in the factory, glue is used to keep the field assembly from slipping and rubbing against the voice coil.

A strong shock will break the glue bond and, if severe enough, clamp the voice coil so it cannot move freely any more.

Since the Bose is a quality product, the cabinet may be assembled with glue and screws that are concealed.

If you know someone with a simple multimeter, they may be able to check at the terminals to see if there is any continuity from the terminals to the speaker.
If it doesn't have any, then perhaps only a wire is broken between the terminals and the speakers.
There is with high probability also a filter inside that separates the frequency range and sends the signal to separate speakers that produce different ranges of sound.

http://www.simplyspeakers.com/speakerrepairinstructions.htm
go with the repair .those r good subs,very expensive. i repaired a pokl 12" sub cone and surround foam. never had a problem. save me 300 bucks.the cone you can fix by using the same material that it is made off.if paper use rubbeer glue. if plastic ,i used a 2 part epoxy,airplane glue.didn't look pretty but did the job.rating please

i have a problem, i dont think my speaker is blown, but , it just looks like the wiring broke on the coil at the end that connects to the cone, i think thats how i can best describe it..its a 10" pioneer IMPP w/ integrated voice coil cooling system 500w max and also it looks like where the wires broke, the coil cam unglued from the cone.. hope someone can help me..is this something i can repair on my own or is it garbage?

No. You would have to find a vendor of the wire used in voice coils and wind them yourself, which also means you have to pull the cone out without damaging the surround or spider , and be able to put is all back together too . Your best bet with an older sub is to find a good deal on ebay.