I am having an bit of an issue with noise/buzz in my home studio, but it is only when a guitar is plugged in. It also seems to be the worst when the AC or Heat is on in the house. It happens with all my guitars, both passive and active pickups. I bought a new Mogami Gold cable to make sure it wasn't my cables but the issue continues. Here is my current set up: Guitar > Line 6 Helix > Yamaha HS8's (Helix and HS8's are plugged into Livewire PC1100 Power Conditioner) Everything is