VecGS

Interestingly, mine did the same thing on the same LED. Mine is just under two years old and still under warrantee so it's at the local shop getting fixed. In my case it was flickering on and off randomly so it was drawing attention to itself. My guess is it's a bad solder joint on my unit since the LED was obviously working some of the time. If it wasn't under warrantee there's a good chance I would have taken things apart to get a good look myself. (But I also have the tools in my shop to work on surface mount electronics)

Even with nothing connected at all there's still a lot of noise. I tried both with a computer and/or iPad connected to the Helix, but other than checking for firmware updates I've not connected anything USB to the PC+. The funny thing in my case is that regardless of where I have the volume knob, the noise is exactly the same. It's just a background noise that always exists when it's on.

I have purchased a Powercab 212+ and it just seems noisy/hissy. In the quiet room I'm practicing in, I can hear noise from 6-10 feet away. With the volume turned to zero. Connected to a Helix via the digital AES connection, with the Helix's volume also turned to zero. (Verified that I have the latest firmware, etc.) My expectation with a $1400 FRFR speaker is that when I turn it on with no signal and the volume pegged at zero I should have a quiet piece of gear. This seems to be getting worse over time as well. Is this the experience that others are getting or do I have a dud?