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Boss Katana-50 50-Watt 1x12" Guitar Combo Amplifier


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Crafted Tones, Forged for Rock: the Boss Katana-50 50-Watt 1x12" Guitar Combo Amplifier.

Katana—the traditional sword carried by the historic samurai of Japan—is a symbol of honor, precision, and artistry in Japanese culture. Adopting the majestic sword's name with pride, the Katana series presents guitar amplifiers with smooth, cutting tones honed by generations of dedication and expertise. Born of the development process behind the acclaimed Waza amplifier, these innovative amps embody BOSS's determined pursuit of the ultimate rock sound. Featuring proprietary circuit designs and meticulous tuning, the Katana series combines traditional craftsmanship and breakthrough functions to produce true next-generation rock amplifiers.

With 50 watts of power and a custom 12-inch speaker, the Katana-50 delivers a commanding range of gig-worthy tones that gracefully slice through any band scenario. The amp also excels for home playing, with a uniquely efficient design and innovative Power Control that provides inspiring sound and response at low volumes. In addition, the Katana-50 includes integrated access to a huge range of BOSS effects, which are customizable using the free BOSS Tone Studio editor software. And with the amp's powerful Tone Setting memories, you can store your favorite amp channel setups and effects combinations for instant recall.

Katana Version 2: Expanded Effects, More Tone Settings, and Increased Performance Versatility
Available starting in October 2017, the feature-packed Katana Version 2 update adds many user-requested additions and enhancements to the Katana stage amp lineup. SDE-3000 delay, Phaser 90E, and Flanger 117E effects bring the total number to 58, and the Tone Setting memories have been doubled for even greater versatility while performing. The update also includes newly added channel and global EQs for refined tone-shaping, powerful Cabinet Resonance and Air Feel direct out functions derived from the Waza amp series, and many other great features. Katana Version 2 is a free, user-installable update for all Katana owners.

Katana-50 Features:

  • Stage-ready 50-watt combo amp with a custom 12-inch speaker
  • Five unique amp characters: Clean, Crunch, Lead, Brown (derived from the Waza amp), and Acoustic (for acoustic-electric guitars)
  • Choose from a huge selection of customizable effects and effect routing configurations with the BOSS Tone Studio editor software
  • Dedicated gain, EQ, and effects controls for adjusting sounds quickly
  • Tone Setting memories for storing and recalling all amp and effect settings
  • Power Control for achieving cranked-amp tone and dynamic response at low volumes
  • Built-in tilt stand for optimal monitoring and sound projection
  • Pro setups available at BOSS Tone Central

Katana Version 2 Additional Features:

  • Tone Setting memories increased from two to four (two banks of two)
  • Access to 58 total effects (SDE-3000 delay, Phaser 90E, and Flanger 117E types added)
  • Full-time channel and global parametric EQs for refined tone shaping
  • Three Cabinet Resonance types adjust the interaction between the amp's output section and speaker, enabling you to fine-tune the feel and tone of the amp
  • Cabinet simulation on the line, USB, and phones/recording outputs enhanced with three Air Feel settings for adding depth and dimension to direct tones
  • Reverb section now supports delay and delay-plus-reverb in addition to reverb only

A Refined Amp with Inspiring Tone
Designed for guitarists who are serious about their sound, the Katana-50 offers exceptional tone and touch response for stage playing, recording, and simply practicing at home. A standout characteristic of every Katana amp is the dynamic interaction between its output section and the speaker, which provides the ultra-responsive musical experience that players crave. The Version 2 update adds an expressive Cabinet Resonance function derived from the flagship Waza amps, which allows you to customize this interaction for your touch with three resonance types. Delivering class-defying power, authoritative punch, and cutting presence that stands shoulder-to-shoulder with high-end amp designs, the Katana-50 is ready to meet the needs of any playing situation.

Five Original Amp Characters, Honed for Rock Playing
Sharpened to perfection by the BOSS engineering team, the Katana-50’s five amp characters offer everything from organic vintage tones to modern high-gain sounds. Clean is natural and transparent, while Crunch offers satisfying grit and response. Lead has a wide gain range to suit many styles, from fat, stinging blues solos to fluid legato shredding. With DNA inherited from the Waza amp, Brown delivers refined high-gain tone sought after by the world’s greatest rock players. The Acoustic character further enhances the Katana’s versatility, providing optimized tone that makes acoustic-electric guitars sound stunningly natural.

Leave Your Pedalboard at Home
With its built-in BOSS effects, the Katana-50 lets you perform anywhere with just a guitar and amp. Connecting to BOSS Tone Studio via USB provides access to 58 fully-customizable effects, and you can load your favorites into the amp’s various effects sections. Going beyond standard distortion, delay, and reverb, the selection includes powerful tone-shapers like pitch shifting, ring mod, slicer, and many more. Newly added in Version 2, the SDE-3000 delay, Phaser 90E, and Flanger 117E effects provide classic sounds that are a perfect match for the Katana’s Brown channel tones. Another new feature is the enhanced Reverb section, which now supports delay and delay-plus-reverb in addition to reverb alone.  

Tone Settings: One-Touch Recall of Custom Amp and Effects Setups
One of the Katana-50’s most powerful features is the ability to store favorite amp channel and effects setups in Tone Setting memories for instant recall. The Version 2 update adds a second bank of Tone Settings, doubling the number of available memories from two to four. Combined with the newly added channel and global parametric EQs (configurable in BOSS Tone Studio), this elevates the Katana-50’s performance versatility to even higher levels. It’s easy to select Tone Settings and switch between the two banks from a panel button, or via an optional external footswitch for hands-free control on the gig.

Grab-and-Go Operation
While the Katana-50 includes many advanced features, it’s amazingly simple to operate. Familiar knobs for gain and three-band EQ let you quickly dial in your tone, just as you would with any standard amp. Essential effects parameters are adjusted with a simple knob twist, and Tone Settings can be stored with a brief button hold. And with the convenient Power Control, you can roll back the volume for small stages and home playing while retaining the expressive tone and feel of a cranked-up amp. The Katana-50 also features USB and phones/recording outputs with cabinet simulation, allowing you to send mic’d up amp tones to a computer DAW, recorder, or headphones for quiet practice. Version 2 further enhances this capability with three Air Feel settings derived from the flagship Waza amps.

BOSS Tone Central
At the BOSS TONE CENTRAL website, you’ll find numerous free amp and effects setups for the Katana series. Created by pro guitarists, these setups provide ready-to-play sounds for various music styles, and also make great starting points for building your own sounds. They load into the memories in a Katana amp via the BOSS Tone Studio editor software, which is also available at the site. In addition to Katana effects selection and customization, BOSS Tone Studio gives you a convenient way to organize all your Katana setups for different gigs, recordings, and practice sessions.

Get your Boss Katana-50 50-Watt 1x12" Guitar Combo Amplifier today at the guaranteed lowest price from Sam Ash Direct with our 45-day return and 60-day price protection policy.

Great little amp


This is not my only amp but it fills a nice niche. Overall sound and feel are very much like a tube amp and I have 2 tube amps sitting beside me. However, if volume is a concern the Katana will actually turn down to a level that makes tube amps sound iffy. The volume at 50 watts is more than adequate. Coupled with the software any sound is possible using the 50+ built in effects. I tried some Boss stomp boxes with it and it's difficult to tell the difference between the amp built in effects. 4 presets is great and the footswitch to toggle between them is only $60 so it's very giggable. If you want an amp that yu can tweak to eternity this is it. I love playing around with it and the overall EQ allows you to dial out any boxiness from the relatively small box. The USB out does a good job for recording and even this is tweakable, if such a word exists. That is this amp, tweakable and it sounds way better than the $200 price tag would have you believe.


Murfreesboro, TN




I have had this amp for about two weeks now. I own some great tube amps but I wanted something lighter and more dependable. I swung back and forth betwen thinking this is an amazingly good amp or a piece of transistor junk. Finally my mind is made up. This thing is astounding. To get the sounds you really want will sometimes take a little tweaking. A few dregrees on the knobs and you have a whole different amp but all the tones are in there. The stock speaker looks cheesey but it flat out booms and gets plenty of chime and low end. This thing is loud enough to play anywhere. It is totally a gigable amp. I do wish there was a way to tap time the effects with a foot pedal but this thing costs less than one good pedal and has a ton of good fx built into it so I guess I can live with that minor inconvenience. Bang for the buck nothing comes close. One might buy it for a cheap backup amp but it will rise to the top of the list of your weapons of choice.




Best Amp for the Best Price!


The Boss Katana is the best thing Boss has put out in my opinion. This amp is super easy to find literally any tone you want and save it directly to its presets. With 5 different settings (including an Acoustic and "Brown Note" setting) feel free to add Delay, Reverb, Chorus, Boost, Phase and whatever else to make this amp perfect for you. Plus it just sounds fantastic!!! Love this amp.


Indianapolis, IN


Very impressed


Went into my local Sam Ash looking for a very compact and lightweight practice amp for my living room. I've got plenty of larger tube amps in the studio but sometimes just want to run some riffs during commercials. I was thinking of something like a Champ 20 or a little Orange practice amp but then a brand new Katana 50 was brought out to be unboxed and put on display. Ok, a little larger than I'd wanted but as soon as I plugged in & kicked it on I was sold. Love the power management, drop it down to a quarter watt and get some sweet grind at living room levels but at the full 50 watts I'd have no hesitation at running a small bar gig with it. I'm VERY impressed with Roland's amp modeling - tremendous touch dynamics and grit if you really dig in. Most of my personal stuff is tube but I also own a Fender Mustang III 100 watt and have to say I think I like the Katana a little but more because of its simplicity. If you're looking for a reasonably priced amp that's more than just a beginners toy, you won't be disappointed with the new Boss Katana. THANKS NICK!

Jimmie Vaughn



Great Amp for Practice and Modeling


Great practice amp and modeling amp. Its hard to find a Solid state that can emulate tubes so well, and the Katana takes the cake. It is super versatile and all the sounds it makes sounds great. Although this is usually used for practice, it can handle loud volumes as well and can keep up with drums. I love this thing and it is super light weight. Cleans sound great and the Dirty is even better.


Tampa, FL


Fantastic amp


Boss has always been known for quality pedals and now they have entered the amp game with their Katana line up. These amps are incredibly versatile. The best part is the ability to get 55 of Boss's well known FXs through their tone editor software, making this amp useful in almost any situation.


Edison, NJ

Versatile combo


This is a great sounding combo. Boss has taken their popular effects and modeling and built them into a versatile combo amp. Although many other manufactures have similar amps out on the market, this is the only one to have the popular Boss tones built in. It's easy to dial in your favorite tones and program them for later use. The price makes this amp affordable for any player and doubles as a great practice amp as well as for live performance.

Maximus Bassimus

Lombard, IL


Great Amp!


These new Boss amps are awesome, great sound and easy to use. Try one out today!


sam ash nyc




At first I scratched my head when these arrived and maaaaan was I wrong! These have all the great tones as your favorite Boss pedals. Well worth the money, due to features and sounds. Wow! Its about time Boss

Lee @ Sam Ash Cincinnati

Cincinnati, Ohio


Easy to Use Amp


There are a lot of amps on the market now that have tons of sounds and effects built in, but many of there are really difficult to use. The Katana is easy to understand, and easy to dial in great tones. Also, nearly all the tones and effects are useful. There aren't a bunch of outliers that you'll never use. And... in this very compact box, you've got enough volume to jam with a live drummer, so it's not just a practice amp. It's a rehearsal amp, and even a gigging amp.

DJ Jazzy Josh

Canoga Park, CA


Katana-50 50-Watt 1x12" Guitar Combo Amplifier

5.0 10


Channels 4
Watts 50
Speaker Configuration 1 x 12"
Speaker(s) Custom
Digital FX Yes
Line Out Yes
Reverb Yes
Other Features See "More Info" Tab Above for Full Specifications
Weight 25.57 lbs.
Dimensions 18.56 x 15.69 x 9.38 inches (WxHxD)
Series Katana
Model Katana-50

BOSS Katana-50 Specifications

Warranty Info:

Effects pedals: 5 years parts, 3 years labor All other products: 1 year parts, 90 days labor