BOSS Katana-50 MkII EX 50W 1x12 Combo Amplifier

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THE EVOLUTION OF A MODERN CLASSIC

Main Features

Stage-class 50-watt combo amp with GA-FC/GA-FC EX Foot Controller support, Stereo Expand, and line output with cabinet emulation
Tube Logic design approach produces class-defying power, authoritative punch, and cutting presence
Five unique amp characters (Clean, Crunch, Lead, Brown, and Acoustic) and five 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
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
Stereo Expand out to link with a second Katana MkII
Three Cab Resonance options (Vintage, Modern, and Deep) selectable in BOSS Tone Studio
Line, USB, and phones/recording outputs with mic’d cabinet emulation and three Air Feel settings (configurable in BOSS Tone Studio)
Optional GA-FC and GA-FC EX foot controllers provide complete amp control, including expanded Tone Setting selection, effects on/off, expression pedal control, and more
Connections for up to two footswitches or an expression pedal
Download and share Livesets at BOSS Tone Exchange
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 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. Each character also includes a selectable variation, providing a broad palette of tone options to craft your personal sound.

Five Effects At Once

All Katana MkII models feature 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 EX 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 the onboard 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 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 controls, simply save it to the desired memory with a quick button hold. Four Tone Settings are available for fast selection from the panel or optional FS-series footswitches. The GA-FC and GA-FC EX offer expanded foot control, giving you access to eight Tone Setting memories (four panel settings plus four configurable in BOSS Tone Studio), individual effects on/off, and more.

Stereo Made Easy

One Katana MkII sounds great—but playing two at once is even better. The Stereo Expand feature makes linking two amps simple, with just one regular cable needed. You can control everything from the main 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 Katana MkII models except the Katana-50 MkII.

Ready-To-Mix Direct Tones

The Katana-50 MkII EX 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 and GA-FC EX foot controllers are the perfect partners for the Katana-50 MkII EX. They connect with a single cable, require no external power, and take up minimal space. With six footswitches, you can directly recall Tone Settings and independently turn the five effects sections on/off. They also support external footswitches and expression pedals, with customization via BOSS Tone Studio. The GA-FC offers standard control, while the expanded GA-FC EX provides the ability to control two amps together, connect another unit for additional foot control, and more.

Go Deeper With BOSS Tone Studio

BOSS Tone Studio takes the Katana MkII experience even further, allowing you to customize the amp for your style and touch. Change up the factory-loaded effects, adjust effect order, shape the overall tone with global EQs, tweak the cab resonance, and much more. And with Livesets, you can save favorite setups and instantly reconfigure your Katana MkII for different playing situations.

SPECIFICATIONSRated Power Output50 WNominal Input LevelINPUT: -10 dBu (1 M ohm)
AUX IN: -10 dBu (20 k ohms)Speaker30 cm (12 inches) x 1ControlsPOWER 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 buttonIndicatorsVARIATION
BOOSTER
MOD
FX
DELAY
REVERB
TAP
CH1
CH2
PANELConnectorsINPUT jack: 1/4-inch phone type
POWER AMP IN jack: 1/4-inch phone type
LINE OUT 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
GA-FC/CTL SOLO jack: 1/4-inch TRS phone type
AUX IN jack: Stereo miniature phone type
USB port: USB B type
AC IN jackPower Consumption47 WAccessoriesOwner's Manual
Power cord
GA-FC stickerOptions (sold separately)Footswitch: FS-5L, FS-6, FS-7
Expression pedal: Roland EV-5, BOSS EV-30, FV-500L, FV-500H
Foot Controller: GA-FC, GA-FC EX
Amplifier Stand: BAS-1
Amplifier Cover: BAC-KTN50SIZE AND WEIGHT (INCLUDE HANDLE AND RUBBER FEETS)Width470 mm
18-9/16 inchesDepth238 mm
9-3/8 inchesHeight398 mm
15-11/16 inchesWeight11.7 kg
25 lbs 13 oz