Always clean out the voice coil gap before installing the replacement kit. This is very important since any part of the old coil left behind or any flaking of the magnet coating could damage or shorten the life of the new recone kit. Doulbe sided tape or tape folded so that the sticky side is out on both sides should be sliped in the maganet gap and then drug around the gap. Do this with how ever many pieces of tape needed until the tape comes out clean. Blowing the gap out will not clean it .
I never had the guts to attempt this...had a pair of Yamaha S4115H speakers and one needed a recone real badly but the working unit sounded incredible. More power I could ever want.
I always just use an angle grinder with a thin wire wheel to grind away anything resembling a remnant of the spider or surround or glue. Makes QUICK work of any speaker frame, and this way you have clean bare metal for the spider glue and surround glue to adhere to.
I think you've left out the most important part... Cleaning the voice coil gap making sure you've got nothing to foul your new coil. You must do this. Also I'd not turn the driver while in the gap. This could cause the voice coil do damage and possibly create a short. Also once you've glued the surround and gaskets down, turn the complete driver upside down to let dry so the weight of the unit can pin the glue together. Also ver important.... Wash your hands! Happy Reconing!
It centres the speaker so that it doesn't rub. If the speaker isn't centred when you glue it, it might be slightly out and it'll rub against the magnet. It has to be perfectly centre. If the kit doesn't come with it, you could just use card or anything else that will slide down there tight!
I have so many questions... Was that the original cone on those speakers, and about how old/how much use had they seen? Also, what is the typical lifespan of them? Am I correct in assuming they don't use a foam surround because it can be a weak point of speakers which get driven as hard as those? This reminded me of the time I almost bought a pair of original Bose 901's on stands from a thrift shop for like $75, then noticed all the foam surrounds had completely deteriorated. There was no way I was gonna try to repair 16 4-1/2" speakers by myself, and the only speaker shop I know of won't do anything smaller than 5". I'm still kicking myself for passing on those, after seeing a few how-to's on it now.
reconing is that much cheaper that it actually worth the energy and time put into the process? And if that is the case how could it be that much cheaper if you get every part of the speaker excluding only the frame and the magnet?
actually that's a common misconception. A more powerful amp will blow speakers more easily, period. A 500wrms amp driven into clipping probably makes like 750wrms, which is no harder on the driver than a 750wrms amp playing cleanly. Just use an amp that has the same rating as the speakers and don't clip it!
You have to remove all of the old spider, not just glue over it. JBL recone protocol is to clean the gap to clean out all the bits of old VC, and check the gap with a gauge. You can't buy OEM recone kits from JBL unless you've been through their certification class.
+oldbob1951 I would have never guessed such a thing as a protocol for fixing busted speakers existed. I am curious on how to clean the gap, since I usually come across speakers that are rubbing pretty badly on the dust, or the coil is downright stuck inside and doesn't move a bit. Sometimes whatever crap gets in there is ferromagnetic, and the magnet holds it in. There was one rubbing Wigo from around '55 that was full of metal filings. I tried many methods, but the only one I found that worked well was using sticky tape, slide a piece into the gap and move it around, repeat several times. Got the Wigo working flawlessly.
Tell me what it means by clipping??? does that sound like clicking sounds from the subwoofer??? only had this happen a couple of time but mainly due to uneducated connections. My 2240H playing at a full 600w of amplified power bridged 8-16ohms. No problems whatsoever....so Clipping just to clarify?
Hold up, bro...you just glued to the old ratty spider. Not impressive. You say the glue is 'hard core'....does that mean you got it at an adult shop ? LOL.... anyway, I'm hoping that speaker still works, cause your recone experience was a bit 'iffy'.
Dude, YOU should NOT be reconing speakers!!! Your lack of cleaning the spider web off completely has rendered the voice coil out of dead center calibration creating a weak forward throw bias. That speaker will NEVER stand up to its rated power now.
+Keith Steele Never argue with continued success, that is just foolish. I compared your speaker recone video to shango066 and, wait a minute, you never did a video, before you condemn, lets see what ya have?
Always clean out the voice coil gap before installing the replacement kit. This is very important since any part of the old coil left behind or any flaking of the magnet coating could damage or shorten the life of the new recone kit. Doulbe sided tape or tape folded so that the sticky side is out on both sides should be sliped in the maganet gap and then drug around the gap. Do this with how ever many pieces of tape needed until the tape comes out clean. Blowing the gap out will not clean it .
I never had the guts to attempt this...had a pair of Yamaha S4115H speakers and one needed a recone real badly but the working unit sounded incredible. More power I could ever want.
I don't care what everyone else says, your methods worked & the end result shows it. 'Nuff said!
I always just use an angle grinder with a thin wire wheel to grind away anything resembling a remnant of the spider or surround or glue. Makes QUICK work of any speaker frame, and this way you have clean bare metal for the spider glue and surround glue to adhere to.
I always wondered about why the surround was shiney on the commercial paper cones.
Fantastic! I didn't know you could restore blown speakers!!
Oh, and I got to see the face behind the voice finally. :)
have seen Uncle Doug do this as well :)
I think you've left out the most important part... Cleaning the voice coil gap making sure you've got nothing to foul your new coil. You must do this. Also I'd not turn the driver while in the gap. This could cause the voice coil do damage and possibly create a short. Also once you've glued the surround and gaskets down, turn the complete driver upside down to let dry so the weight of the unit can pin the glue together. Also ver important.... Wash your hands! Happy Reconing!
Cool I got to see your cute face again. Hehe 😍
Wow, you can fix anything & the finished result looks good.
hey seXXXy....wannna........
shango066 Sure, anytime for you babe.
shango066
I wish someone liked me ... Oh well ...
m31570 - You can be my friend if you want. :)
fantastic job mate. love your videos
I had no idea... I would have tossed them without thinking twice. Now I know better, thank YOU. :O)
It centres the speaker so that it doesn't rub.
If the speaker isn't centred when you glue it, it might be slightly out and it'll rub against the magnet. It has to be perfectly centre.
If the kit doesn't come with it, you could just use card or anything else that will slide down there tight!
I wish i had one of these beauties. Nice work
Reconing in the style of Shango066, i like it!
I have so many questions... Was that the original cone on those speakers, and
about how old/how much use had they seen? Also, what is the typical
lifespan of them? Am I correct in assuming they don't use a foam
surround because it can be a weak point of speakers which get driven as
hard as those?
This reminded me of the time I almost bought a pair of original Bose 901's on stands from a thrift shop for like $75, then noticed all the foam surrounds had completely deteriorated. There was no way I was gonna try to repair 16 4-1/2" speakers by myself, and the only speaker shop I know of won't do anything smaller than 5". I'm still kicking myself for passing on those, after seeing a few how-to's on it now.
Great job. I look forward to seeing more.
Beautiful. :)
imagine the state of your ear drums, sir!~
reconing is that much cheaper that it actually worth the energy and time put into the process? And if that is the case how could it be that much cheaper if you get every part of the speaker excluding only the frame and the magnet?
Boomtastic! 18's! now pump some Sir Mix a Lot thru them! Seminar.. Beepers!
these different than 12 inch woofers ? I press down on the cone on mine and feel no rub but they seem stiff?
I don't understand, can't you just use heat to remove the entire cone without cutting it? Then you could just remove the voice coil and keep the cone.
SO.... were they ready to go Saturday night?
I had a dream about re-coning a 2240H, serious
where do you work now then?
could you link the kit used ??
What does the voice coil shim do ? does it come with most recone kits ?
It wont matter when his got them pumping out some tunes for the masses will it... no.
actually that's a common misconception. A more powerful amp will blow speakers more easily, period. A 500wrms amp driven into clipping probably makes like 750wrms, which is no harder on the driver than a 750wrms amp playing cleanly. Just use an amp that has the same rating as the speakers and don't clip it!
how much do u charge to recone these subs..i see there 800 ea so reconing is a cheaper way to go about it.cool vid
I see now why I bought replacements for my JBL 125 tower lol. Just looking at all the comments I think I did the right thing.
8:30 "If that comes loose all your work is fine just glue it back down"
it would have been easier to put the shim in with the cone at the same time, I know this because I reconed a set of speakers before
They need more power!!
You have to remove all of the old spider, not just glue over it. JBL recone protocol is to clean the gap to clean out all the bits of old VC, and check the gap with a gauge. You can't buy OEM recone kits from JBL unless you've been through their certification class.
+oldbob1951 I would have never guessed such a thing as a protocol for fixing busted speakers existed.
I am curious on how to clean the gap, since I usually come across speakers that are rubbing pretty badly on the dust, or the coil is downright stuck inside and doesn't move a bit.
Sometimes whatever crap gets in there is ferromagnetic, and the magnet holds it in. There was one rubbing Wigo from around '55 that was full of metal filings. I tried many methods, but the only one I found that worked well was using sticky tape, slide a piece into the gap and move it around, repeat several times. Got the Wigo working flawlessly.
if it works, dont knock it
beh ma si sentono?
Turn down the volume just before 04:42. Save your hearing.
too late.
nice job dident here if thay are 4 or 8 ohm
Tell me what it means by clipping??? does that sound like clicking sounds from the subwoofer??? only had this happen a couple of time but mainly due to uneducated connections. My 2240H playing at a full 600w of amplified power bridged 8-16ohms. No problems whatsoever....so Clipping just to clarify?
voice coil looked burned as well
Glue marks and drops on the new cones, if you hadn't said otherwise I would say this was your first time
You missed several steps on cleaning and you did not clean the old spider from the frame! Best tool to use for that is a heat gun.....
Also he did not clean inside the coil magnet either.
DJ I agree...
If it works, dont knock it.
low frequency driver. the end.
I could see your head
no one shango makes natural fibre/coated bass cones?
Hold up, bro...you just glued to the old ratty spider. Not impressive. You say the glue is 'hard core'....does that mean you got it at an adult shop ? LOL.... anyway, I'm hoping that speaker still works, cause your recone experience was a bit 'iffy'.
Kamikaze
Dude, YOU should NOT be reconing speakers!!! Your lack of cleaning the spider web off completely has rendered the voice coil out of dead center calibration creating a weak forward throw bias. That speaker will NEVER stand up to its rated power now.
You cut it off the hook amateur!
if it works, dont knock it.
ugly work :(
u work verry durty
Sloppiest recone in The world
small magnet
This is why reconing is best left to PROFESSIONALS !!! You missed several steps and did not even remove the old spider.
+Keith Steele Never argue with continued success, that is just foolish. I compared your speaker recone video to shango066 and, wait a minute, you never did a video, before you condemn, lets see what ya have?
if it works, dont knock it.
not to nice to those speaks bruh
Sloopy
Sloopy you mean sloppy ... And it wasnt ...
The worst recone ever
could you link the kit used ?
please and thank you