I have 2 humidifiers I run 24 /7 in my house. They are really to protect the hardwood floors.
Having audio equipment on ungrounded circuits is not a good idea. pay an electrician to get one 10awg circuit from your panel to your listening room. You will be wowed at the change. While you are at it, get a whole house tvss installed at your panel. A basic unit by Square D will save your gear and does not cost much. $300 or $400 for the unit. It plugs directly into a 2 pull CB in your panel. Easy to install.
Having audio equipment on ungrounded circuits is not a good idea. pay an electrician to get one 10awg circuit from your panel to your listening room. You will be wowed at the change. While you are at it, get a whole house tvss installed at your panel. A basic unit by Square D will save your gear and does not cost much. $300 or $400 for the unit. It plugs directly into a 2 pull CB in your panel. Easy to install.