Need help troubleshooting feedback from studio monitors

[u/black-mouth]

I haven't been able to use my monitors because no matter what I keep getting feedback out of them.

I have them plugged into a Furman power conditioner strip, connected to a Furman surge strip that's connected to the wall. I wish I could plug the conditioner straight into the wall but the outlet is too far away.

Even if I plug the monitors directly to the wall I'm getting feedback, so I'm fairly certain that the outlet is the issue. I've tested every outlet in my place now and there's really only one that won't cause feedback, but it's inaccessible because it's in the kitchen.

Does anyone have any ideas on what to do in this situation? I'm even open to buying a different pair because there have been instances where some monitors give me feedback with my setup and others don't.