I've been hitting my SR-6500's with a steady diet of bass-heavy music, running them at full-range for about a week and a half now, and they definitely sound different. They seem to go lower in freq. response, but they also are sounding a bit looser and sloppier! Is this normal, and what adjustments should I make? If the drivers are loosening as you break them in, should you be feeding them more signal (increase input levels on amp?)? Do they now need to be high-passed since they are now extending down to frequencies that they are not comfortable handling? (I plan to do this ultimately when paired with my SR124 of course)? Or do I continue to play them at full range for a few more weeks to further the breaking in? It is weird how they actually sounded tighter and punchier when I first put them in than now!