Boss Katana Artist MkII | NAMM 2020 Jason ShadrickJanuary 18, 2020VideoThe latest iteration of the company's flagship amp line features expanded effects, a 3-way contour switch, and global EQ with three customizable curves.whats-newvideosgear-show-demonamm-2020special-featured-storiesampsbossgearGearEffectsAmpsNAMMVideosReviews