So I was playing a gig with my Ergo EUB and my GK MB 212 ii using the amp at low volume for stage monitoring and what was supposed to be the DI out from the amp going to the board and mains. Turns out the soundguy plugged his xlr into the chain out instead of the DI out. I did not notice this until the end of the set as the amp was performing fine the whole set and my bass sounded great in the mains. I figured the soundguy just got a really hot or really low signal when I saw he used the wrong output. About 2-3 days later I plug in the amp to practice at home. Lots of speaker distortion. The headphone out is clean. Only the top speaker is getting bass sound and its very distorted. Bottom speaker has white noise coming out of it but nothing else. Did using the chain output improperly kill the speakers or something? Anyone assistance is greatly appreciated.