It is because of the air being so dry in your home. I use a ultrasonic humidifier in the winter when it is really dry. Get one without the replaceable filter if possible. I also touch the side of the stand before I touch one of my components, just to make sure there is no static charge in my hand. A number of years ago I sent my preamp into protection mode and it would not come out. I had to send it in for repair. Since then I have been far more careful.
Help me solve static electricity problem
Lately I keep sending my Classe Amp and/or conrad-johnson preamp into protection mode simply by touching anything in my system. A loud pop goes through my speakers and it's very, very disconcerting. I'm smart enough to try to touch something metal before touching my rack, but this does not always work. Apparently I'm not smart enough to solve this condundrum, though. Any ideas????