Been spending time with the katana mk2 head and I have to say, if you're really picky about tone and sculpting your sound then you need to use the boss tone studio on your computer. That's how you truly unlock this amps potential. I've been a tube amp player for 20 years now, and I'm selling off my old amps to keep this katana head. It's extremely versatile and I have nothing bad to say about it! From blues to gospel, and from classic rock to heavy metal this amp has you covered. Nothing like it on the market right now.