I just got 9 months old, hardly being used, mint condition GK 212MBE and GK 1001RB II. Before I buy, I tried it with more than bedroom volume levels to make sure everything works fine. It did sound great. I took to my band practice all excited, but within 30 seconds of playing (I'm not lying, didn't even finish the intro of song.) with rock band practice level of volume, however, it wasn't even turned half way up, cabinet started smelling burnt rubber. One of the speakers was burnt out. Very embarrassing. I called the GK customer service next day, and he kept telling me "I overpowered the cabinet" as if I cranked the amp all the way up to kill it. But like I mentioned before, it wasn't even turned half way up, and didn't even lasted a minute. He was only defensive about his product, and responsibility was all on end-users. I think that was a defective speaker to begin with, and attitude of GK's customer rep really made me mad. I even started assuming that they are hiding some known issues about their speakers that they don't want to disclose (or recall) to the public. Only one thing I'm for sure is I'll NEVER ever buy any products from GK ever again!!!! Horrible product and horrible after-care. Definitely WORTHLESS!!! Did anyone have the similar experience with GK's cabinet?