Yeah, maybe best not to open it. There’s another thread about this hum. No solution specified but a suggestion that using a power conditioner or regenerator might cause an issue. Try straight into wall.
Jays audio cd transport
Hi, just received my jays audio cd2 mk3 transport. First impressions are amazing. Built like a battle ship. Plays wonderfully even tho it's not burnt in yet. My only concern is that there is a definite and noticeable hum from the chassis . It does not come from the amp,or headphones. Just wondering if anyone has experienced the same