More Sounds, More Versatility
Five Amp Characters, Ten Overall Tones
Katana MkII’s five primary amp characters offer everything from organic vintage tones to modern high-gain sounds, plus a dedicated voice optimized for acoustic-electric guitar
More Sounds, More Versatility
The stage-class Katana MkII lineup picks up where the first generation left off, building on the same core tones and features that have made the series such a worldwide smash. If you loved the original Katana amps, you’ll love Katana MkII even more. And if you’re new to the party, get ready for sound, feel, and versatility that soars far beyond its price class.

Five Amp Characters, Ten Overall Tones
Katana MkII’s five primary amp characters offer everything from organic vintage tones to modern high-gain sounds, plus a dedicated voice optimized for acoustic-electric guitar. The characters have now been extended with newly voiced variations, providing a wider palette of tone options to craft your personal sound.

Five Effects at Once
Katana MkII now includes five simultaneous effects categories, putting the tone-shaping power of a massive pedalboard right inside your amp. Independent Booster, Mod, FX, Delay, and Reverb sections come loaded from the factory with three variations in each, providing 15 ready-to-play effects to choose from. Connecting to BOSS Tone Studio lets you dive much deeper if you want—customize the sections with over 60 different effect types, change the order with four different chains, and much more.

Full-Throttle Sound Every Time You Plug In
Backed by BOSS’s Tube Logic approach, Katana MkII delivers the authentic output distortion characteristics of genuine tube amplifiers, with the sound and feel becoming richer and more responsive as you turn up the volume. But unlike that classic tube amp, Katana MkII’s variable Power Control makes it easy to fly in the sweet spot without getting fired from the gig or kicked out of the house. Just throttle back the overall volume as needed to enjoy inspiring, cranked-amp sound anywhere you play, from bedroom to stage.

Amplify Your External Gear
The Katana-50 MkII rocks as a standalone amp, but it also excels as a powered cabinet for a favorite preamp, modeler, or multi-effects unit. Connecting to the rear-panel Power Amp In jack bypasses Katana MkII’s preamp and effects, letting you tap straight into the Tube Logic power section, complete with grab-and-go Power Control. And with BOSS Tone Studio, the input can be easily optimized for your particular gear with a high-pass filter and adjustable gain.

One-Touch Recall of Custom Setups
One of the Katana-50 MkII’s most powerful features is the ability to store favorite amp character and effects setups in Tone Setting memories for instant recall. After you’ve dialed in a sound with the panel controls, simply save it to the desired memory with a quick button hold. Four Tone Settings (two banks of two) are available, with fast selection right from the panel. It’s also possible to connect external footswitches for hands-free control on the gig.

Ready-to-Mix Direct Tones
The Katana-50 MkII features USB and phones/recording outputs with mic’d cabinet emulation, letting you send mix-ready amp tones to a computer DAW or headphones. The direct sound can be shaped with three different Air Feel settings, which are accessible from BOSS Tone Studio. Two-channel USB operation is supported, allowing you to track in true stereo with many of Katana’s modulation, EQ, delay, and reverb effects.

BOSS Tone Studio Enhancements
BOSS Tone Studio has also evolved alongside the Katana MkII amplifiers. The interface has been updated with a refreshed look, and a number of parameters have been consolidated into the main screen for faster workflow. There’s also a dedicated Pedal FX category, making it easier to assign wah and pedal bend effects to a connected expression pedal. And if you’re a first-gen Katana owner, it’s possible to import your custom patches and use them all with Katana MkII.
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
- 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

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

[AMPLIFIER]
VARIATION button
AMP TYPE switch (ACOUSTIC, CLEAN, CRUNCH, LEAD, BROWN)
GAIN knob
VOLUME knob

[EQUALIZER]
BASS knob
MIDDLE knob
TREBLE knob

[MULTI EFFECT]
BOOSTER button
MOD button
FX button
DELAY button
REVERB button
TAP button
BOOSTER knob
MOD knob
FX knob
DELAY knob
REVERB knob

[TONE SETTING]
CH1 button
CH2 button
PANEL button

- Indicators
VARIATION
BOOSTER
MOD
FX
DELAY
REVERB
TAP
CH1
CH2
PANEL

- Connectors
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 (Include handle and rubber feet)
470 (W) x 238 (D) x 398 (H) mm
18-9/16 (W) x 9-3/8 (D) x 15-11/16 (H) inches

* 0dBu=0.775 Vrms