Boss Katana-50 MkII Guitar Combo Amplifier (50 Watts, 1x12")

Great for modelers or as a pedal platform, the Katana-50 MkII combo is versatile for any setting. With a small footprint, it doesn't take up too much space.

The Katana-50 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, updated editor software, and many other enhancements.

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, read more 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. (USB cable not included.)

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 (USB cable not included)
- Rear-panel connections for up to two footswitches or an expression pedal
- Pro setups available at BOSS Tone Central
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Dimensions and Weight in Packaging
Base Item
Shipping Weight: 28.75 lbs
Shipping Dimensions: 22 x 18 x 13 in
Manufacturer Part Number (MPN): KTN-50 2

For support or warranty questions, please contact the manufacturer:
Phone: 323-890-3700

Reviewers gave this product an overall rating of 5 out of 5 stars. (25 ratings)
Submitted March 21, 2021 by a customer from

"Nuthin' Overrated About This Big 12" Katana Amp"

Overall: 5 out of 5 stars
(see rating details)
Verified Customer zZounds has verified that this reviewer made a purchase from us.
I purchased a Katana V.1 head when they first hit the market and quickly found it was a beast on stage and in the studio. I can duplicate 9/10's of the way classic SRV's strat cleans w quack on a Bassman 50w all the way to our Bro Dimebag's nutcrsuhin' face melt humbucker tone "name any heavy amp"),all with one SS amp. Man...what to say about the unfair reviews regarding the BTS software? It's as easy as any other,so go figure. Thing is, those heads are kinda heavy! All good, but I needed a smaller combo to lug about. To be fair, I tried out some other brands but wasn't overly impressed,so went with a 50MkII 12". Wow, this is truly a guitarslinger's delight. I was doubtful about placing pedals in front of it but that was a no-worry. But what the heck! The onboard FX are plenty for any gig (if you have the pedal controller or not) and I really like the knob set-up for good old-fashioned tweaking by feel at loud volumes. Which,btw, this little monster will'll do loud. Better yet, it'll do soft and still retain the tube mojo. I like mine so much, I am buying another one from zZounds, ASAP. I have a little carry around Boss GT-1 multi-effect's pedal that is a keeper for direct-to-interface recordings,too;it's also a mini-beast,easpecially tapping into BTS. I'll get back to you and let you know how it all sounds in stereo with two of them. May be better to just duplicate the same setting one each amp w small variations? Ha, gonna be fun finding out! *Cheers* Regarding zZounds, read more I KNOW they'll get it right.

Robustly perfect. This amp ain't shy about busting yer cajones or a bit hesitant to take it down to blues n jazz heaven tones,all in a split second. There is no other solid state amp that compares. If there was, I'd buy it.

updating firmware..hate it,but a great amp

Ease of Use
Easy as dialing a knob to create tones that'll make The God's cry!

Superior construction.

Worth twice the price,no hype there

The Wow Factor
A true jack of all trades that is an expert in all. That's a Katan amp.

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