Audio Systems: 12 subwoffer, jl audio, vented enclosure

Question
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Followup To
Question -
My 12' JL Audio  has a little scratch to the way it sounds, and it's comming from the coil. it's not blown, becaues it's still sounds good while playing low an when im blasting it.  I have been trying to look online on how to lube the coil, and i cant finde any info. so my question is will lube/oil help if so what type, and how would you do that there is no way  i can see my coil.
         thanks plaeas help
Answer -
Of course, you cannot find any info. There is no money in repairing JL to the reconing industry.
The VC HAS been damaged from overpowering it or boosting lower freq's than it can perform (if it is in a vented enclosure).
All you can do now is replace it or keep it at low volume.

If it were an Altec or a JBL professional series (not car audio, I am talking about the ones they use at concerts), you could damage it easily have it repaired at a local professional reconing shop. They might repair a JL if offered enough money, but without training and special materials, you will not.

"still sounds good while playing low an when im blasting it"
Then what is the problem.
Im kinda confused. Can you hear the problem or not?

If you cannot hear it, do not worry about it unitl it blows or the scratching gets so loud you cannot stand it.




sory but i was just wanted to know if ther was a way to oil the coil. when i play music on my speaker it has a little scratch you cant hear it if you dont stick your ear right up to the holes on the top os my subbox, and it's not constant you only here it on some frequency's. i can live with it but my friend told my something about oilling the coil, so can you help me out

Answer
No problem, sir.

No..you cannot fix it by adding oil (of any type).
The voice coil is physically (and irrepairably) damaged.
Preventing it from happening again to a new woofer is the only resolve. Let a local professional (or me) help you set up the amp levels next time.


He may be confusing 'oil' with ferro-fluid (a non-conductive cooling agent used in tweeters), but at any rate, he is 100% off the mark on this damaged Voice Coil issue.
That would be like presuming that adding oil to an engine (with damaged rings) would fix them. You know better than that!
There are many imitation audio technicians out there. His idea could very well lead to a damaged amplifier as well since the woofer would be shorted by the oil..

So now you know the real deal.


Sincerely,
J. Mael