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I have a set of JBL JRX125 (s) and the high end won't work on them. Not sure if I blew a fuse or the cone or what. The only audio I can get to come through them is low end.

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Hi hoit

They will have either blown high frequency compression driver, or the lamp mounted to the crossover board has failed. Best way to check is pull the horn flare out of the speaker box, and check the voice coil of the HF driver(JBL2412). I think they are 8 ohms from memory. If they are shorted, or more likely open circuit then this is you problem. If they appear ok, then check the lamps. The lamps are there to protect the horns from being overdriven, odd lucks means I have seen it work the other way.
If the JBL part is too pricey for you (they are for me), you can get aftermarket replacements from many places for about $40 each. It is a replacement diaphragm that you need for each HF driver.

I am more than happy to answer any other questions you may have about it, please get back to me here, or use the ASK function to go straight to me :) If you are still unsure, have problems, or we need to look at the situation more deeply, then before you give a rating for this advice, hit the ASK button Thanks for using FixYa, If you consider the advice I have given you as sound, a FixYa rating is a great reward for my efforts to help you. Cheers.

regards
robotek

Posted on Jul 07, 2008

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Posted on Jan 02, 2017

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