A few words on the MT 15 or the suggested EvH 50 Watter. Both these, and the whole EVH amp range, basically most modern higain amps (resp. their higain channels) are over-gained imo (SLO, Recto, 5150, JVM, ....). No one should ever need so much gain, even using low output PAF type pickups.
I also find, that many YouTubers present these amps or channels using too much gain.
In fact many many professional (modern) metal players don't use that much gain.
Ok had to get rid of that, sorry.
With the MT 15 I agree that this is a quite big and mature sounding amp considering it's price. Its flaws could be solved with a few mods. Should be an easy job for an experienced tech. However, having to pay for the tech, equalizes the cheap price ..