The BOSS KATANA-50 is a 50 watt single speaker guitar amplifier combo. Ideal for gigging, rehearsal, practicing at home and recording. The KATANA-50 gives you an outstanding tone right out the box, via its 5 x guitar-amp characters. You also get access to over 50 FX, that include BOSS classics such as the SDE-3000 delay. Other key new features on v2 include refined tone shaping with additional resonance and EQ settings, and USB output for recording.