Here is my setup. Stingray V Line 6 G50 Boss Tuner Sonic Stomp VT Bass Deluxe Radial DI out to IEM's. Ampeg PF 500 Ampeg 410 I get a buzz in the IEM's, but only when I turn slightly, I dont get it when my back is facing the amp straight. If that makes sense. There is no buzz through the cabinet, only in the IEM's. ANd it goes away in certain positions. Any thoughts? I have changed power supplies, DI's, bypassed pedals. It is odd and has me stumped.