Source Audio SA 270 - One Series EQ2

Works wonders for me and my Midi switchable pedalboard.
Switching between guitars with different output levels, just switch preset and it's even.

Takes a while to setup the presets directly on the pedal as there is only one knob to control, but once they're set you don't need to think about it again.

There's so many options in this pedal, it's everything and so much more that you would need from an EQ pedal and I can't see myself switching this one out for anything else for the foreseeable future.