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WAH/FEEDBACK PROB...

6/23/2000 2:34 AM
Johnathan Foy
WAH/FEEDBACK PROB...
i am having a "slight" prob...ok...here goes...  
 
when i run direct into the pa system at church, having my epi lp custom running into a ts9 tubescreamer, then the muff booster signal booster i made, then my dunlop crybaby wah which is like about 3 or so years old...then into a switcbox...but when i turn the wah on, when in the heel (bass) position i get this squealing/oscillating sound that is constant...even with all overdrive/distortion pedals off... it doesn't do it when in any other position...  
 
now when i run all of this into my peavey delta blues tube amp, and mic it, i get no squealing...could it be the signal from the pickups in my guitar is overloading in the bass frequencies of the wah pedal?! but i'm wondering why it works fine with my amp but not when running direct...  
 
also, for what it's worth, i'm not using a direct box  
 
thanx!  
 
Johnathan Foy