Phono stage hum at midpoint on volume control.

It’s a Clearaudio tracer tonearm. 
 

Wi-Fi router nearby?

@hiendmmoe 

-You list two different turntables in your components list. Which one is giving you the hum problem (or are both)?

-Does the hum increase in volume as you increase the volume level?

-I'm assuming you're not playing any vinyl when hearing the hum, correct?

-Is this something you're just noticing, or have you made some recent changes (cables, phono stage, etc.), and are now hearing hum?

Have you checked and confirmed that the tonearm ground cable is connected to the phono stage ground screw/terminal?

@nonoise asked a good question as well.

Sorry, but I haven't commented on this thread. Maybe someone with a similar sounding name like noromance?