Boss Katana MKI, MKII e Gen3 amplificatore combinato altoparlante esterno mod KatCab V2
Boss Katana MKI & MKII Combo Amp KatCab V2 External Speaker Mod Kit. The KatCab V2 External Speaker Mod will allow your Katana combo amp to have an option to use the internal speaker and connect external speaker cabinet(s).