Hello. I encountered an annoying problem. I use a pair of Eris E5 XT's in my home studio. Occasionally i notice that one speaker loses a big chunk of high end. I'm not sure what could be the reason for this problem. But when i restart the speaker via it's power button on the back everything comes back to normal. I recently thought that only my left speaker has this issue, but today the other one also had this problem. This might not happen a day, or it might happen 5+ times a day, which is extremely annoying. What might be the problem? What should i do about it?

Audio goes though my mixer (which is also an audio interface, so my pc audio also goes throug it) then to monitors via XLR.