[VJP5]

I am an absolute beginner to the electric guitar space. I am researching and learning about amps. I am mostly looking to play “clean” - blues/jazz/60s rock (think Beatles). Distortion is not my thing. In my research of amps, there is one area that comes up almost every time with respect to a clean tone. That is the presence of a Mid control knob (always a pro) or the lack of one (always a con).

What is the *magic* of this knob that is so crucial to getting a wide range of good clean tone?

Thanks
Vince