PanamaScoot wrote:
I have a Furman power conditioner that I plug the wall warts/bank into and I assumed that would handle any power issues coming from the wall, but I’ll try it elsewhere also just to be safe. I also just purchased a voodoo labs power brick (waiting for shipping now)because it’s properly isolated, after some research my current brick isn’t actually isolated output so that may be an issue as well.
I do have a multimeter but I’m still very much a noob so I’m not sure how to measure the voltage at the jack
I would think the power conditioner would take care of any problems from the wall power. And since all your different adapters are giving you the same result with clean power, I doubt that a measurement is going to tell us much. That being said, it's easy to test, so we might as well do it:
To measure the voltage, set your multimeter to the DC voltage mode, indicated by a solid line above a dotted one. Use the 20VDC range setting if it's not an auto-ranging meter. Connect your power adapter and then place the black pin on the sleeve of the DC jack (the larger one) and the red pin on… uh… one of the other ones.
I can't think of how to describe which one to you, so just try them both.