i was watching the clapton crossroads festival on tv the other day, and i noticed that, when the guitarist was the only one onstage, you could hear the lead really clearly, but when he played rhythm, all you could hear was the drums and bass. i don't think they were using footswitches to go from overdrive to clean, because the sound from the guitar totally stopped.

i may be wrong, does anyone know what was going on?
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