Overview & Innovations
BOSS upgrades the acclaimed Katana range with the MKII, adding fresh features and enhanced performance. Firstly, a new editor gives you full control over all amp settings and effects. Moreover, the Variation button adds five new amp voices—all based on classic tube designs. Additionally, new concentric knobs let you control each effect separately, including on/off buttons.
Expanded Effects & Power Amp Input
Now you can access up to 65 effects, including poly-octave and pedal-bend whammy. Plus, the improved FX matches the MKII’s increased horsepower. Another key addition is the Power Amp In, which lets you plug in high-end multi-effects directly into the power section for even deeper tone shaping.
Heritage & Performance
Named after the samurai’s honored sword, the Katana continues BOSS’s tradition of precision and power. The MKII builds on decades of experience, combining proven circuitry and meticulous tuning to deliver new-generation rock tones. In addition, its lineage traces back to the development of the revered Waza amps.
Stage-Ready 100 W Configuration
This 100 W combo features two 12″ speakers (30 cm each), delivering powerful projection and rich dynamic response. With Power Control, you can preserve that full tone at low volumes—perfect for home or studio use. Plus, it ships with 55 onboard BOSS effects, all editable using Tone Studio software. You can even chain up to 15 effects in parallel for complex setups.
Easy Tweakability
The Boss Katana-100/212 mkii guitar amplifier includes five amp characters—Clean, Crunch, Lead, Brown, and Acoustic—plus five Variation options for fresh tones. Furthermore, you get five effects slots and fast-access controls for Gain, EQ, Presence, and dedicated FX. There are also three cabinet resonance types and a Pedal FX input for wah, volume, or pedal-bend control.
Recording & Connectivity
The Boss Katana-100/212 mkii guitar amplifier supports pro workflows with USB audio, headphone/recording outputs, and mic’d cab simulation featuring three Air Feel parameters. Also, Power Amp In and USB make it easy to integrate external multi-effects or computers. Lastly, you can save tones to two memory banks and assign up to three expression pedals via the GA-FC foot controller.
- Power: 100 watts
- Speakers: 2 x 12″ custom speakers
- Amp Types: Clean, Crunch, Lead, Brown, Acoustic
- Variation Button: Adds 5 additional amp voicings (total of 10 tones)
- Effects: 65 customizable BOSS effects (5 simultaneous)
- Effects Sections: Booster, Mod, FX, Delay, Reverb (independent control)
- Power Control: Adjustable for 0.5W, 50W, and 100W output
- EQ: 3-band EQ (Bass, Middle, Treble)
- Presence Control: Yes
- Power Amp In: Dedicated input for use with modelers/multi-FX
- USB: For direct recording and patch editing
- Headphones/Recording Out: With mic’d cab emulation and Air Feel options
- Line Out: For direct connection to PA systems
- MIDI: No
- Channels/Memory: 8 Tone Setting memories
- Footswitch Compatibility: GA-FC Foot Controller (sold separately)
- Software: Boss Tone Studio (free, for in-depth patch editing)
- Cabinet Resonance: 3 selectable types
- Dimensions (W x D x H): 670 x 248 x 484 mm / 26.4″ x 9.8″ x 19.1″
- Weight: Approx. 22.8 kg / 50.3 lbs

GIBRALTAR SC-19B CYMBAL SLEEVE
BOSS KATANA AIR GUITAR AMPLIFIER
LINE6 HELIX LT GUITAR PROCESSOR
TAMA RB8P PLASTIC BOTTOM (2PCS)
GIBRALTAR SC-DTK DRUMMERS TECH KIT
GIBRALTAR 5 IN. BLACK PORT HOLE RING
GIBRALTAR SC13P3 WING NUTS
GIBRALTAR 4 IN. CHROME PORT HOLE RINGS
GIBRALTAR DRILL BIT DRUM KEY
TAMA TW100 TENSION WATCH
ERNIE BALL EARTHWOOD PHOSPHOR BRONZE ACOUSTIC 11-52
NINO BONGO STAND
GIBRALTAR SC-19A CYMBAL SLEEVE
BOSS KATANA MINI
GIBRALTAR SC-GLL LUG LOCKS
BOSS eBAND JS10 AUDIO PLAYER W/GUITAR EFFECTS
ROLAND JC-120 JAZZ CHORUS
ALESIS PERCUSSION PAD
YAMAHA GENOS 2 ARRANGER WORKSTATION
BOSS GT1 MULTI EFFECT
BOSS KTN100 AMP COVER
GIBRALTAR 6 IN. WHITE PORT HOLE RINGS
GIBRALTAR SC-GPR24C CURVED TUBE
YAMAHA FC5 SUSTAIN PEDAL
ORANGE CRUSH PIX CR20RT
BOSS DM2W DELAY WAZA CRAFT
DEATH BY AUDIO REVERBERATION MACHINE
GIBRALTAR SC-DSAB BEATER
ORANGE BASS BUTLER BI-AMP BASS PREAMP PEDAL
PEARL DB-100 DOUBLE BEATER
LINE6 POD GO
DUNLOP 5430 GUITAR FINISH CLOTH
MOOER SHIMVERB DIGITAL REVERB PEDAL
VOX VT 20X GUITAR COMBO
MXR M89 BASS OVERDRIVE
GIBRALTAR SC-CFS4 SHORT CYMBAL FELTS
BOSS GEB7 BASS GRAPHIC EQUALIZER
BOSS POCKET-GT POCKET EFFECTS PROCESSOR
FENDER FOOTSWITCH MGT-4 MUSTANG GT
GIBRALTAR RATCHET DRUM KEY
ZOOM B1X FOUR BASS MULTI EFFECTS
GIBRALTAR 5 IN. CHROME PORT HOLE RING
YAMAHA FC4A SUSTAIN PEDAL
GIBRALTAR 6 IN. CHROME PORT HOLE RINGS
GIBRALTAR 6 IN. BLACK PORT HOLE RINGS
STAGG SUS-PED5 SUSTAIN PEDAL
LINE6 HELIX RACK GUITAR PROCESSOR
STAGG SUSPED10 SUSTAIN PEDAL
FENDER MIRROR IMAGE DELAY PEDAL
FENDER MARINE LAYER REVERB PEDAL
ORANGE ONE WAY FOOTSWITCH FS1
LINE 6 LFS2 FOOTSWITCH FOR CATALYST AMPS
ROLAND JC-40 JAZZ CHORUS 