Hi , I have a question for all you JBL affectionados . I have a very clean pair of 4312A’s . I’ve paired them with numerous SS and Tube amps . No vinyl , just a Schiit Yiggy . I’m not recapturing my youth , like I was hoping . They sound harsh in the mids. Has anyone experienced an improvement rebuilding/ replacing the crossovers ? Also being secured into the baffle , I’m hesitant to tear into a virgin speaker . Please share from actual personal experience. I have already done the “ Well typically when you “ stuff . Respectfully, Mike B. And yes I was born in 57’ and I have a Buell .