SXX V1 sound
 

What is that sound that comes out of the controller? It's the only esc that I've heard makes that noise. It only goes silent on full throttle. Does the same on my Nosram Pearl.

Never heard 'electronics' make noise before. I actually find it quit comforting:)

Please tell me it's not only me who has heard it:)

I've got a V1 in my 2 and 4 and neither make a noise, though they are the TC's if that makes a difference