I have DAC Problem/issue

Wonder if anyone has encountered the problem i am having while i wait for a repair from JDS Labs. My OL Dac is not working right. When i turn the volume up on my preamp my speakers make fuzzy popping sounds and eventually my power amp goes into protection mode and shuts off. I have tried different cable,sources, etc…i even have another dac and it works fine with everything, and when i put the OL Dac to my desktop setup it does the same thing and i noticed my Micca RB42 woofer act very strange, like slow in and out motions, very weird movement. Anyone have this problem before? I know JDS Labs will fix it and they are great, i have other stuff from them. I just hope i didnt cause it to happen in anyway so i can avoid it in the future. Here my set up: IPAD/LAPTOP > OL DAC>ATOM AMP>EMOTIVA A150>ELAC UNI’s

If it moves slow and you cannot hear it then it’s some subsonic noise. You’ll need to send it for repair, that shouldn’t happen.

Thanks, I’m waiting on a return slip