Is my Alpair 10.3 damaged?

Hi All,

Just finished glueing my small MLTL enclosures for the 10.3! While breaking them in (about 20 hrs now) noticed a crackling in the "right" driver. When I lightly press on the dust cap, there is a small crackle. The other driver is smooth as silk. Is one driver damaged or out of spec?

Thanks,