Question about JBL PRX515 Speaker

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How do i tell if my problem if the high freq diaphram or the cross over

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The crossovers in professional speakers don't fail that easily. It could be a blown tweeter. To confirm remove the metal grille-- remove the screws of the Horn Tweeter -- remove the cable connectors on the tweeter terminals ( Red and Black wire ). Now if you have a multimeter put it in Ohms range and touch the probes on the tweeter terminals-- It should show a reading betwwen 4 to 8 Ohms depending what is written on the back of the tweeter magnet. If you do not have a Multimeter you can take an ordinary cell/battery ( 1.5v ) from a TV remote and touch the terminals of the Horn Tweeter with the battery. + to the tweeter + ( a small red dot or mark will be there on the tweeter ) and -- to the tweeter -- . When you touch the terminals or give 1.5 volt supply the tweeter will make a scratching noise.
If you do not hear the scratching noise - it indicates a blown tweeter coil and will need replacement.See link below for spares:-
http://legacysoundservice.com/catalog1/product_info.php?products_id=1417
But if it does, you are in trouble and will need professional help from a electronic technician.
Could be blown HF Amplifier, suspect the crossover last. They seldom fail.
Revert back for more help

Posted on Apr 02, 2011

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The only way to do it is to remove the tweeters from both speakers and exchange (reverse) them between the speakers. If the problem remains in the same speaker enclosure, the problem is the crossover. If the problem moves over to the other enclosure the tweeter is the problem and needs to be replaced. If you are not confident that you have the tools and skills to easily remove and reinstall the tweeters, do not attempt this but bring the speakers to a specialty audio dealer that has a service department. It will cost money but probably less than replacing speakers you destroyed in an effort to repair them.

Posted on Apr 02, 2011

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Posted on Jan 02, 2017

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