seems like i remember the mids being at 5 is default, and that it is also setup to be like an old amplifier where mids set at 5 is kinda flat. i know mine is set factory default.

are you running your amp model or preset too loud causing distortion? maybe you just have a bad unit.

with any of my presets, you should be able to switch on the loop with the settings i gave and it should sound good with no distortion. if you try any of my presets and it doesn't sound right, you may have a defective Epsi.