Check the listing for details. Boss Katana 50 Guitar Amplifier Gen 3. Condition: Open box. Listed at 297.89 USD. #html-body [data-pb-style=CQ9HL59],#html-body [data-pb-style=HK95SHD],#html-body [data-pb-style=ME9NW0N],#html-body [data-pb-style=SRKOS0X]{justify-content:flex-start;display:flex;flex-direction:column;background-position:left top;background-size:cover;background-repeat:no-repeat;background-attachment:scroll}Refined Tube Logic Tones Tube Logic recreates tube circuitry and all its complex interactions at a component level, putting the coveted tone and feel of classic tube amp designs under your fingers. The approach continues to evolve with refinements to the five amp characters available in previous Katana models, including the iconic high-gain Brown type. The new Pushed character spotlights internal dynamic enhancements with the pleasing touch-responsive gain of a clean combo driven into.