Pre Recto days. Boogie modified Fenders, Mark I-IV, Dual Calibers, etc
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Ok so I’m the new owner of a black dot Mark III. The only issue that I’ve found is that when I engage the GEQ, the 80hz slider will emit a loud droning hum if it’s placed near the top line or the bottom line. It has a range in the middle where it works perfectly and sounds great, but moving it up or down too far will cause the issue. Like I said before, it’s a loud hum, and when I strum the guitar, no noise comes from the speakers other than the humming. Does this sound familiar? Any help or advice would be appreciated greatly.