Full frontal view of a BOSS Katana 50 MKII Guitar Amplifier
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BOSS Katana 50 MKII Guitar Amplifier

by Boss
The BOSS Katana 50 MKII takes the core platform of one of the world's most popular modern combo amps, and boosts it up a notch or three with..

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The BOSS Katana 50 MKII takes the core platform of one of the world's most popular modern combo amps, and boosts it up a notch or three with a bunch of new features and voices.

A Versatile, 50 Watt Guitar Combo

Featuring more sounds, more effects, and more features than ever before, the new BOSS Katana MKII Guitar Amplifier is a powerful and versatile combo that can now be yours for a fantastic price!

BOSS Katana 50 MKII Highlights

  • Stage-ready 50-watt combo amp with a custom 12-inch speaker
  • Tube Logic design approach produces class-defying power, authoritative punch, and cutting presence
  • Five unique amp characters (Clean, Crunch, Lead, Brown, and Acoustic), plus newly voiced variations for each
  • Five independent effects sections (Booster, Mod, FX, Delay, and Reverb), with three selectable variations in each
  • Dedicated Pedal FX for foot-controlled wah and pedal bend
  • Updated BOSS Tone Studio software for customizing your sound with over 60 different BOSS effects, channel and global EQs, adjustable routing, and much more
  • Power Amp In for preamps, modelers, and multi-effects
  • Four Tone Setting memories for storing and recalling all amp and effect settings
  • Power Control for achieving cranked-amp tone and response at low volumes
  • Three Cab Resonance options (Vintage, Modern, and Deep), selectable in BOSS Tone Studio
  • Mic’d cabinet emulation on the USB and phones/recording outputs, with three Air Feel settings available in BOSS Tone Studio
  • Rear-panel connections for up to two footswitches or an expression pedal
  • Pro setups available at BOSS Tone Central

More Versatile Than Ever

Since their initial release a few short years ago, the BOSS Katana lineup has established itself as the go-to modeling amplifier for aspiring pro's, hobbyists, and relative beginners the world over.

The Katana MKII builds upon the core tones of its predecessor to deliver a combo amp that truly soars far beyond its price class.

Five Amps, Ten Tones!

Whether you want to hear organic-sounding, vintage tube tones, something a little more modern and high-gain, or even a dedicated voice optimised for acoustics, the five primary amp characters on the Katana can take you there.

These characters have now been extended with all-new voice variations, giving you an even wider palette of tones with which to paint your sonic landscape.

Five EFfects At Once

Another upgrade for the Katana MKII is the ability to now run a massive FIVE (yes, 5) effects categories at the same time, essentially giving you a decent-sized on-board pedalboard to play with.

With 15 ready-to-play effects to choose from, and the ability to connect up to the BOSS Tone Studio for even more options, this amp is ready-made to help you customise your perfect sound, for any situation.

BOSS Tube Logic

For that full-throttle, authentic tube-amp sound, BOSS have included their incredible Tube Logic technology in the Katana MKII.

This technology delivers the kind of authentic tube overdrive and distortion tones and characteristics we all know and love, but thanks to the amp's variable Power Control it can deliver those sweet spots even and bedroom volume levels!

Amplify Your External Gear

Whilst the Katana 50 MKII is superb as a standalone, practice-ready amp, you can also use it as a powered cabinet for your favourite preamp, modeler or multi-fx unit!

Simply connect to the rear-panel Power Amp In jack, and the MKII's preamp is bypassed, allowing you to tap straight into the Tube Logic power section, complete with Power Control function!

Custom Setup One-Touch Recall

Thanks to the inclusion of Tone Setting memories on the Katana MKII, you can recall your favourite amp and effects setups with ease.

Simply dial in your preferred sound with the panel controls, then save it to the desired memory with a quick button hold, and away you go!

The Katana MKII allows you to save 4 Tone Settings (two banks of 2), and you can quickly recall them again via the panel, or through using external foot controllers.

Ready-To-Mix Direct Tones

With Line, USB, and phone/recording outputs at your disposal, the Katana MKII can be directly connected up to any PA System, DAW, or headphones.

This sound can be shaped with three different Air Feel settings via the BOSS Tone Studio, and as two-channel USB operation is supported, you can track in true stero with many of Katana's on-board effects.

BOSS Tone Studio Enhancements

The release of the Katana MKII also sees the evolution of BOSS Tone Studio.

With an updated interface, faster workflow, and dedicated Pedal FX category, editing, storing, sharing, and downloading new setups for your Katana has never been easier.

If you already own a BOSS Katana, it's worth noting that Tone Studio will allow you to import your custom patches into the MKII with ease!

BOSS KATANA-50 MkII Guitar Amplifier Specs

  • Rated Power Output: 50 W

    Nominal Input Level

  • INPUT: -10 dBu (1 M ohm)
  • AUX IN: -10 dBu (20 k ohms)
  • Speaker: 30 cm (12 inches) x 1


  • POWER switch
  • MASTER knob
  • POWER CONTROL switch (STANDBY, 0.5 W, 25 W, 50 W)


  • VARIATION button
  • GAIN knob
  • VOLUME knob


  • BASS knob
  • MIDDLE knob
  • TREBLE knob


  • BOOSTER button
  • MOD button
  • FX button
  • DELAY button
  • REVERB button
  • TAP button
  • BOOSTER knob
  • MOD knob
  • FX knob
  • DELAY knob
  • REVERB knob


  • CH1 button
  • CH2 button
  • PANEL button


  • MOD
  • FX
  • TAP
  • CH1
  • CH2


  • INPUT jack: 1/4-inch phone type
  • POWER AMP IN jack: 1/4-inch phone type
  • REC OUT/PHONES jack: Stereo 1/4-inch phone type
  • EXP PEDAL/CTL CH1/CH2 jack: 1/4-inch TRS phone type
  • AUX IN jack: Stereo miniature phone type
  • USB port: USB B type
  • AC IN jack
  • Power Consumption: 47 W
  • Dimensions: 470 (W) x 238 (D) x 398 (H) mm / 18-9/16 (W) x 9-3/8 (D) x 15-11/16 (H) inches
  • Weight: 11.6 kg / 25 lbs 10 oz
  • Accessories: Owner's manual, Power cord
  • Specification

    Weight (kg)13.0000
    Effectsbooster, mod, fx, delay, and reverb
    Power Supplyiec
    MPNKTN-50 MK2
    Warranty2 years
    SeriesKatana Series
    Woofer Size12" woofer
    Power50 watts
    Amp Typemodelling / digital amplifier

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