Step on it …

[nnnnnn]

Flats instead of rounds.

Seriously? Not exactly a quick change going back and forth between tones.

2 channel amp. Quite a few ways to do this without going down the pedal rabbit hole.

An EQ pedal is a simple and inexpensive solution, no rabbit hole involved and certainly way cheaper and easier than buying a two-channel amp.

 

[nnnnnn]

Not quick. Some things we must sacrifice so we can remain authentic.

The whole point of the question is how to change tones back and forth quickly,. I'm not a moderator, but in my opinion replying to a post in the Effects forum to say that using effects is not authentic is violating the rules of the forum.

 

[MotorCityMinion]

That is correct. I agree 100%. You are not a moderator.