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

MEINL 17BYZANCE MEDIUM THIN CRASH
PROSS KÕLAPLAAT BB2
YAMAHA DS840
FENDER LOCKING TUNERS LEFT HAND
ROLAND JC-22 JAZZ CHORUS
MOOER CRUNCHER DISTORTION
STAGG KIDS CAJON BLUE
EVANS 22 RETRO SCREEN BLACK
ADAMS UNIVERSAL TIMPANI 29 COPPER WITH FINE TUNER
VIC FIRTH 2BN AMERICAN CLASSIC NYLON TIP
EVANS 26 EQ3 RESONANT BLACK
BOSS MD2 MEGA DISTORTION
YAMAHA ARIUS YDP-145 DIGITAL PIANO BLACK
EVANS MIN-EMAD SINGLE-MEDIUM
EVANS 12 J1 ETCHED
YAMAHA C1X POLISHED WHITE GRAND PIANO 161CM
PROTECTION RACKET CAJ1 CAJON BAG
IBANEZ GRG121DX-BKF
EVANS 12 GENERA G1 COATED TOM HEAD
EVANS 22 GENERA G2 CLEAR BASS DRUM HEAD
MEINL MCS1BK MOUNTABLE CAJON SNARE
GIBRALTAR SC-4244 DRUM KEY
TAMA CB90R IRON COBRA RUBBER BEATER
GIBRALTAR SC-3261 FELT BEATER
KORG VOLCAKICK BASS PERCUSSION SYNTHESIZER
MEINL PADJ1MF 10 INCH DJEMBE PHARAOHS FIBER SKIN HEAD
EVANS ARF7GM APPRENTICE PRACTICE PAD
ELECTRO-HARMONIX 720 STEREO LOOPER PEDAL
PROTECTION RACKET 5129-10 TOM PADDED DRUM CASE GIG BAG
KEELEY MAGNETIC ECHO DELAY MODULATED TAPE DELAY
GRAPHTECH TUSQ PQ-1204-00 F- STYLE P-STYLE BASS NUT CURVED BOTTOM SLOTTED 4-STRING
BOSS OS2 OVERDRIVE DISTORTION
HOHNER SILVER STAR E-MAJOR
FOCUSRITE SCARLETT SOLO STUDIO PACK 4TH GEN
YAMAHA RYDEEN STUDIO BURGUNDY GLITTER WITH CYMBALS
DADDARIO EJ16 PHOSPHOR BRONZE
YAMAHA SE122 PE
GÖLDO SPRING FOR HUMBUCKERS 31MM
HOHNER MARINE BAND 1896 A-MAJOR
GIBRALTAR SC-4C TENSION RODS
TAYLOR 312CE-N NYLON STRING ELECTRO ACOUSTIC NATURAL
K&M 210/2 MICROPHONE STAND NICKEL
MEINL A-GO-GO STEEL REALPLAYER
K&M 15290 SOPRANO SAX STAND BLACK
KLOTZ KIK 1,5M INSTRUMENT CABLE BLACK
EVANS 10 UNO58 1000 COATED TOM HEAD
ERNIE BALL SUPER SLINKY 09-42
HOHNER MARINE BAND 1896 BB-NATURAL MINOR
VIC FIRTH F1 WOOD TIP
GIBRALTAR GEMS SPECIAL STANDS MOUNTING STATION
YAMAHA GL1 GUITALELE BL
DADDARIO ACCESSORIES 50A07 WOVEN GUITAR STRAP CELTIC
DADDARIO ECG25 CHROMES
SCHALLER MACHINE HEAD ORIGINAL G-SERIES KEYSTONE SR 3 LEFT/ 3 RIGHT
VOX PATHFINDER 10 