The Evolution of a Modern Classic

Katana MkII takes the acclaimed Katana guitar amp series to the next level, turbocharging the core platform with more sounds, more effects, and more features. Newly voiced variations are now available for all five amp characters, doubling the tonal options. And the onboard effects categories have been expanded from three to five, providing even more real-time processing to choose from. The usability has been ramped up too, with a power amp input for modelers and multi-FX, easy stereo expansion for dual amp setups, updated editor software, and many other enhancements.

Katana-Head MkII Main Features

• Light and portable 100-watt guitar amp head with powerful, gig-ready sound

• Integrated five-inch monitor speaker for practice without an external cab

• 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

• Stereo Expand out to link with a second Katana MkII (available on 100-watt models only)

• Eight 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 from the panel or BOSS Tone Studio

• Mic’d cabinet emulation on the line, USB, and phones/recording outputs, with three Air Feel settings available in BOSS Tone Studio

• Optional GA-FC foot controller provides complete amp control, including Tone Setting selection, effects on/off, expression pedal control, and more

• Connections for up to two footswitches or an expression pedal, plus MIDI input for Tone Setting selection and effects on/off from a MIDI foot controller

• Effect loop, with selectable series/parallel operation and adjustable level in BOSS Tone Studio

• Pro setups available at BOSS Tone Central

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 versatile Katana-Head MkII can also be used as a dedicated amplifier 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.

Connect and Control

The speaker out on the Katana-Head MkII supports connection to your preferred 8-ohm or 16-ohm cabinet. And with the handy built-in monitor speaker, you’re able to check tones and practice anywhere without having to hook up a cab at all. Advanced players will appreciate the MIDI input, which provides easy integration with MIDI controllers and switching devices.

Stereo Made Easy

One Katana MkII sounds great, but playing two at once is even better. The new Stereo Expand feature makes linking two amps simple, with just one regular cable needed. You’re able to control everything from the master Katana MkII, with stereo-compatible effects like chorus, delay, reverb, and others distributed across both amps for a wide, immersive sound field. Stereo Expand is supported on all 100-watt Katana MkII models.

Ready-to-Mix Direct Tones

The Katana-Head MkII features line, USB, and phones/recording outputs with mic’d cabinet emulation, letting you send mix-ready amp tones to a PA system, 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.

Compact Gig Commander

The optional GA-FC foot controller is the perfect partner for the Katana-Head MkII. It connects with a single cable, requires no external power, and features a slim, rugged profile that takes up minimal space. With six footswitches, you can directly recall Tone Settings and independently turn the five effects sections on/off. The GA-FC also supports external footswitches and expression pedals, with default assignments that include tap tempo, bank selection, foot volume, and Pedal FX. A large variety of custom assignments are available via BOSS Tone Studio, including expression pedal control of up to three parameters at once.

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.

- Rated Power Output

30 W (Using internal speaker)

100 W (Using external speaker)

- Nominal Input Level

INPUT: -10 dBu (1 M ohm)

AUX IN: -10 dBu (20 k ohms)

RETURN IN: -10 dBu (100 k ohm)

- Speaker

12 cm (5 inches) x 1

- Controls

POWER switch

MASTER knob

PRESENCE knob

POWER CONTROL switch (STANDBY, 0.5 W, 50 W, 100 W)

CAB RESONANCE switch (VINTAGE¤MODERN¤DEEP)

[AMPLIFIER]

VARIATION button

AMP TYPE knob (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

CH3 button

CH4 button

PANEL button

[STEREO EXPAND]

STEREO EXPAND switch

- Indicators

VARIATION

ACOUSTIC

CLEAN

CRUNCH

LEAD

BROWN

BOOSTER

MOD

FX

DELAY

REVERB

TAP

CH1

CH2

CH3

CH4

PANEL

- Connectors

INPUT jack: 1/4-inch phone type

POWER AMP IN jack: 1/4-inch phone type

LINE OUT jack: 1/4-inch phone type

SEND jack: 1/4-inch phone type

RETURN jack: 1/4-inch phone type

SPEAKER OUT jack: 1/4-inch phone type (Minimum 8 ohm)

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

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

GA-FC jack: 1/4-inch TRS phone type

AUX IN jack: Stereo miniature phone type

USB port: USB B type

MIDI IN connector

AC IN jack

- Power Consumption

77 W

- Dimensions (Include handle and rubber feets)

470 (W) x 228 (D) x 215 (H) mm

18-9/16 (W) x 9 (D) x 8-1/2 (H) inches

- Weight

8.8 kg

19 lbs 7 oz

- Accessories

Owner's manual

Power cord

GA-FC sticker

- Options (sold separately)

Footswitch: BOSS FS-5L, BOSS FS-6, BOSS FS-7

Expression pedal: Roland EV-5, BOSS EV-30, BOSS FV-500L, BOSS FV-500H

GA FOOT CONTROLLER (GA-FC)

* 0dBu=0.775 Vrms