make sure you download the secret amps and pedal board: http://haveguitar.com/wp/2017/11/10/boss-katana-sneaky-amps-original-amp/
https://github.com/katana-dev/docs/blob/master/how-to/use-28-amp-types.md
So the gain goes to 13? ;-)
If I didn't already have more amps than I can justify having, I'd consider getting one. But I still haven't even scratched the surface of my old Spidervalve.
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