Weak sound from M5's

dan152

Hi. I have a pair of M5 Series2 Polks. One day both sounded normal, the next day both have no sound coming from the 6 1/2" drivers and sound VERY weak. Tweeters I here sound from. It is not the Integrated amp, speaker cables or interconnects. I have tested those 3 components on another system and all ok. I pulled one of the 6 1/2" drivers and put pos/neg leads to it from an amp and I here sound through the driver. Could I have blown both cross-over networks at the same time?

Thanks.