I have an Ibanez Turbo TubeScreamer, and whenever Im on the dirty channel it gets insane feedback, or screeching when I engage it. Could there be something wrong with the pedal? This happens also whenever Im not using any pedals and its straight to the amp, and I go past 5. Opinions? I did buy the pedal used from GC
-Peavey Classic 30
-Silverburst Epiphone Les Paul Custom
-Squier Stratocaster
-Ibanez TS9DX Turbo Tube Screamer
-Fender PT-100
-MXR Phase 90
-Fuzz Face Clone
-MXR Carbon Copy
How much gain do you use?

Epiphone Les Paul Standard w/ SD Alnico Pro II's
Fender Aerodyne Telecaster & Stratocaster
Marshall JCM 800 4104 combo

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