leave it be. To get more bass response I would tighten the radio audio limiter(limit more) and then incrase gain on the D104, that way the peak highs get limited while the bass(weaker response) gets compressed towards the limiter level. This will prevent overmodulation while increasing the weaker bass response of the D104. This is a big trick when using power mics such as D104, a way to alter freq response by a form of compression by use of the radios own limiter circuit. My first power mic back in the 80's was the Minuteman 2. the battery case is weak so take care of it, repair as necessary. As handmade as the internals look, that mic is one durable piece, down to the chrome finish. Mine was sold to another happy owner eventually, not because I didn't like it, but because I was simply walking away from the hobby. BR