Katana—the traditional sword carried by the historic samurai of Japan—is a symbol of honor, precision, and artistry in Japanese culture. Adopting the majestic sword’s name with pride, the Katana series presents guitar amplifiers with smooth, cutting tones honed by generations of dedication and expertise. Born of the development process behind the acclaimed Waza amplifier, these innovative amps embody BOSS’s determined pursuit of the ultimate rock sound. Featuring proprietary circuit designs and meticulous tuning, the Katana series combines traditional craftsmanship and breakthrough functions to produce true next-generation rock amplifiers.

With 50 watts of power and a custom 12-inch speaker, the Katana-50 delivers a commanding range of gig-worthy tones that gracefully slice through any band scenario. The amp also excels for home playing, with a uniquely efficient design and innovative Power Control that provides inspiring sound and response at low volumes. In addition, the Katana-50 includes integrated access to 55 BOSS effects, which are customizable using the free BOSS Tone Studio editor software. Up to 15 different effects can be configured in the amp at one time, enabling you to bring fully prepared tones to the stage in one amp.

Boss Katana 50

SKU: K50
$399.00 Regular Price
$379.05Sale Price
    • Stage-ready 50-watt combo amp with a custom 12-inch speaker
    • Five unique amp characters: Clean, Crunch, Lead, Brown (derived from the Waza amp), and Acoustic (for acoustic-electric guitars)
    • Choose from 55 customizable effects with BOSS Tone Studio editor software
    • Store 15 different effects on board, with three effects available simultaneously
    • Dedicated gain, EQ, and effects controls for adjusting sounds quickly
    • Two memories for storing and recalling all amp and effect settings
    • Power Control for achieving cranked-amp tone and dynamic response at low volumes
    • Built-in tilt stand for optimal monitoring and sound projection
    • Pro setups available at BOSS Tone Central


    Rated Power Output: 50 W

    Nominal Input Level:

    INPUT: -10 dBu (1 M ohm)

    AUX IN: -10 dBu

    Speaker: 30 cm (12 inches) x 1


    POWER switch

    MASTER knob

    POWER CONTROL switch (STANDBY, 0.5 W, 25 W, 50 W)




    GAIN knob

    VOLUME knob



    BASS knob

    MIDDLE knob

    TREBLE knob



    BOOSTER/MOD button

    DELAY/FX button

    REVERB button

    TAP button

    BOOSTER/MOD knob

    DELAY/FX knob

    REVERB knob



    CH1 button

    CH2 button

    PANEL button












    INPUT jack: 1/4-inch phone type

    AUX IN jack: Stereo miniature phone type

    REC OUT/PHONES jack: Stereo 1/4-inch phone type

    EXP PEDAL/CTL CH1/CH2 jack: 1/4-inch TRS phone type

    USB port: USB B type

    AC IN jack

    Power Consumption: 47 W

    Accessories: Owner's manual, Power cord

    Options (sold separately): Footswitch: BOSS FS-5L

    Expression pedal: Roland EV-5, BOSS FV-500L, BOSS FV-500HSIZE AND WEIGHT

    Width: 470 mm 18-9/16 inches

    Depth: 238 mm 9-3/8 inches

    Height: 398 mm 15-11/16 inches

    Weight: 11.6 kg 25 lbs 10 oz

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