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Great Replacement To Repair Our JBL Speakers - Good Quality and a Great Price We have at Queens Christian Alliance Church about (4) JBL speakers that use this part for the tweeter that are installed in them. Unfortunately due to use and some abuse the tweeter diaphragms were damaged and no longer functioned. I check online regarding to the repair of the speakers on YouTube and it outlined how to diagnose if it was a faulty tweeter diaphragm. After testing I discovered that (3) of the (4) JBL speakers did in fact have this issue and we need to repair all of them. Additional investigation and discussion with a speaker specialist fleshed out that these diaphragms were designed to use Ferro Fluid to cool the voice coils to prevent damage when driven too hard. This may occur when feedback happens unexpectedly and the tweeters are overdriven.
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Purchase of the ferro fluid was make on Amazon also to properly repair the speakers. Depending on the model JBL speakers you have the take apart may differ from my repair. Basically we took off the front grill and the securing screws. Loosened the handle mount which also includes the connection panel. Removed the tweeter unit and then disconnected the +/- leads.
After removing the tweeter unit we removed the plastic horn unit from the tweeter main body. Then removed the tweeter diaphragm.
Looking carefully at the tweeter base magnet where the coil slides into we did notice a dark brownish residue which are telltale signs of the tweeter being over driven. We cleaned the brown residue off and then replace a few drops of ferro fluid into the cavity carefully. Reinstalled the new replacement tweeter diaphragm and secured it with the original screws and reversed the take apart to put back the speaker. We ran a test signal through the speaker and were happy to hear that it was back up and running. The sound was crisp and clear as it was when the tweeter was functioning when we first purchased the JBL speakers.
I have to say that we could have purchased more expensive replacement diaphragms or complete tweeter units, but for the price and a 30 - 45 minutes of work on each speaker we were able to repair all (3) defective speakers and get them back online. As always I purchase most if not all my items on Amazon through Smile to support our church and through vendors who offer Prime. The price was great and the shipment was timely. Great Replacement To Repair Our JBL Speakers - Good Quality and a Great Price We have at Queens Christian Alliance Church about (4) JBL speakers that use this part for the tweeter that are installed in them. Unfortunately due to use and some abuse the tweeter diaphragms were damaged and no longer functioned. I check online regarding to the repair of the speakers on YouTube and it outlined how to diagnose if it was a faulty tweeter diaphragm. After testing I discovered that (3) of the (4) JBL speakers did in fact have this issue and we need to repair all of them.
Additional investigation and discussion with a speaker specialist fleshed out that these diaphragms were designed to use Ferro Fluid to cool the voice coils to prevent damage when driven too hard. This may occur when feedback happens unexpectedly and the tweeters are overdriven.
Purchase of the ferro fluid was make on Amazon also to properly repair the speakers. Depending on the model JBL speakers you have the take apart may differ from my repair. Basically we took off the front grill and the securing screws. Loosened the handle mount which also includes the connection panel. Removed the tweeter unit and then disconnected the +/- leads. After removing the tweeter unit we removed the plastic horn unit from the tweeter main body. Then removed the tweeter diaphragm.
Looking carefully at the tweeter base magnet where the coil slides into we did notice a dark brownish residue which are telltale signs of the tweeter being over driven. We cleaned the brown residue off and then replace a few drops of ferro fluid into the cavity carefully.
Jbl 2412h 1 Diaphragm
Reinstalled the new replacement tweeter diaphragm and secured it with the original screws and reversed the take apart to put back the speaker. We ran a test signal through the speaker and were happy to hear that it was back up and running. The sound was crisp and clear as it was when the tweeter was functioning when we first purchased the JBL speakers. I have to say that we could have purchased more expensive replacement diaphragms or complete tweeter units, but for the price and a 30 - 45 minutes of work on each speaker we were able to repair all (3) defective speakers and get them back online.
Jbl 2412h Driver For Mac Windows 10
As always I purchase most if not all my items on Amazon through Smile to support our church and through vendors who offer Prime. The price was great and the shipment was timely.