Mags

Hi There, I have 3 month old Klipsch R-15PM with a R-10SW sub attached. The set worked fine up until last week when the right (powered) speaker started cutting out after about 5-10 min of play time. It happens with Bluetooth and AUX every time I play music. Both the sub and left speaker continue to work, but the right volume goes down to almost nothing. I've tried unplugging and plugging back in - does nothing. I live in an apartment, so I never play them loud so they shouldn't be damaged. Has anyone else experienced this? Any thoughts on how to fix?? Thanks