I have an old pair of Jenson speakers that I'm pretty sure were custom made by somebody. It's a three-way system. The x-over for the tweeter and mid it at 1500 hz and itit's relatively steep. I have the Dayton audio apa-150 amplifier. The problem only started after I changed amplfifiers and tweeters, but I don't believe that I've listened to these speakers quite as loud before replacing the tweeters and the amplifier due to the distortion my old amplifier brought at higher volumes. The x-overs look well built and are fairly large and complicated. Does anybody have any ideas as to what could cause this? Could it be the amplifier, or should I try to reproduce the old crossovers and get some better tweeters?