last night, my brother and i were playing a rather loud and bass heavy classical passage when we noticed two red lights coming from about the center of my Vandersteen 2ce's. we immediately turned the volume down (i'm guessing we were hitting about 102dB peaks in my medium-sized room), but noticed that all the bass was gone from the mix. i've never had anything like this happen to the speakers, regardless of playback volume, and i've always taken good care of them. i've since turned off the amp and left the speakers idle for about 24 hours. should we be concerned? for reference, the amp is a Classe CA-150.