Here we go again. Same bass, different problem. It has been some time already that my Cort gb74 (fully active bass) makes an annoying buzz (I am sure that is the bass and not the amp because I tried it with another instrument and there was no noise), but whenever I touch the bridge, the strings, (some) knobs and basically every other metal part the noise reduces. I have also noticed that if I turn off the eq (in this bass there is a switch for the eqalizer) the noise completely disappears, so I thought that maybe there is some grounding issue inside the eq circuit. But I am most ignorant in this topic. So what do you think it could be?