I'll start off by saying I'm new to the forum and I'm looking for some help with a tweeter problem. My problem involves distortion with the PG RSD 6.5 Comp. tweeters. I've got them in the front of a 2008 GMC Sierra Crew Cab, running passive on a JL A4300 (which has been re-rated at 500 watts in the new G-Series) in conjunction with a set of the PG RSD 6.5 coaxials in the rear. I'm running these off the factory radio (wanted to keep stock look) with an AudioControl LC6. I had it installed at a reputable local car audio shop. When I turn the volume up to about halfway, the tweeters are distorting. I'm just wondering what could be causing this and how it can be fixed??? The equalization of the factory head unit is still active and I've alleviated some of the problem by turning down the BASS, MID, and TREBLE controls on that, but it's still not exactly right. Any help anyone could provide would be greatly appreciated. Thanks.