Hello.
I have a pair of JBL 4612OKs.
They took a pretty good shot of high volume amplifier wattage for brief second.
After the sudden burst, the 2404H-1 Ultra-High Frequency Transducers sound a little less crisp, less fidelity.
The pair of JBL 4612OKs just sound a little more bassy.
The woofers seem to be working fine.
The amp wattage is 35 wattage into 8 ohms.
Volume control was set at half when the speakers took the burst.
How do you test the tweeters to see if diaphragms are damaged ?
Thanks,
Mr Wizard