Boss Katana KTN50 Guitar Amplifier

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    Product Description

    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 55 Boss effects, which are customizable using the free Boss Tone Studio editor software. Up to 15 different effects can be configured in the amp at one time, enabling you to bring fully prepared tones to the stage in one amp.

    Boss Katana KTN50 Guitar Amplifier 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 55 customizable effects with Boss Tone Studio editor software
    • • Store 15 different effects on board, with three effects available simultaneously
    • • Dedicated gain, EQ, and effects controls for adjusting sounds quickly
    • • Two 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
    Crafted Tones, Forged for Rock
    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.

    Inspiring rock amp born of Waza DNA.

    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. The custom 12-inch speaker is driven by a special method developed for the flagship Waza amp that optimizes the speaker and cabinet character. This gives you authoritative punch and cutting presence previously attainable only with high-end amp designs. In combination with the five selectable amp characters, the Katana-50 produces class-defying power and expressiveness to meet 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 and recallable Tone Settings, the Katana-50 lets you perform anywhere with just a guitar and amp. Connecting to Boss Tone Studio via USB provides access to 55 effects that are fully customizable for your needs. Going beyond standard distortion, delay, and reverb, the selection also includes powerful tone-shapers like pitch shifting, ring mod, slicer, and more. You can load 15 different effects in the amp at one time and use up to three simultaneously. Two tone Settings let you store custom amp and effects setups for instant recall, and you can always jump to the current panel settings at the touch of a button. It’s also possible to connect optional footswitches and expression pedals 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. Dedicated knobs for multiple gain stages and three-band EQ allow you to quickly dial in your tone by ear, just as you would with a standard tube amp. Essential effects parameters are adjusted with a simple knob twist, and memories can be stored with a brief button hold. The Power Control is great for throttling back the volume for small stages and home playing, and also includes a Standby setting that mutes the sound for switching guitars or taking breaks. And by flipping out the integrated tilt stand, you can easily angle the amp back for better sound projection.

    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.

    Product Specifications
    Boss Katana KTN50 Guitar Amplifier Specifications
      Rated Power Output 50 Watts     
      Nominal Input Level
      • INPUT: -10 dBu (1 M ohm)
      • AUX IN: -10 dBu
      Speaker 30 cm (12 inches) x 1
      • POWER switch
      • MASTER knob
      • POWER CONTROL switch (STANDBY, 0.5 W, 25 W, 50 W) 
      • GAIN knob
      • VOLUME knob
      • BASS knob
      • MIDDLE knob
      • TREBLE knob
      • BOOSTER/MOD button
      • DELAY/FX button
      • REVERB button
      • TAP button
      • BOOSTER/MOD knob
      • DELAY/FX knob
      • REVERB knob
      • CH1 button
      • CH2 button
      • PANEL button
      • DELAY/FX
      • REVERB
      • TAP
      • CH1
      • CH2
      • PANEL
      • INPUT jack: 1/4-inch phone type
      • AUX IN jack: Stereo miniature phone type
      • REC OUT/PHONES jack: Stereo 1/4-inch phone type
      • EXP PEDAL/CTL CH1/CH2 jack: 1/4-inch TRS phone type
      • USB port: USB B type
      • AC IN jack
      Power Consumption 47 W
      Dimensions (WxDxH) 470 x 238 x 398 mm; 18-9/16 x 9-3/8 x 15-11/16 inches
      Weight 11.6 kg; 25 lbs 10 oz
      • Owner's manual
      • Power cord 
      Options (sold separately)
      • Footswitch: BOSS FS-5L
      • Expression pedal: Roland EV-5, BOSS FV-500L, BOSS FV-500H 
    * 0dBu=0.775 Vrms
    Helpful Info about the Manufacturer
    Phone:  323-890-3700 Warranty:  BOSS Compact and Twin Pedals: 5 years parts, 2 years labor; BOSS (other): 1 year parts, 90 days labor
    Product Rating brightstarbrightstarbrightstarbrightstarbrightstar
    Best amp ever
    Product Rating
    What is your opinion of this product?
    Finally a amp that performs as advertised ????????????
    Bob H
    Product Rating brightstarbrightstarbrightstarbrightstarbrightstar
    Greater than I expected
    What is your opinion of this product?
    This is now my go to amp. At home with earphones & out at playing gigs at 50 watt. The special effects built in and that can be downloaded are the best.
    Product Rating brightstarbrightstarbrightstarbrightstarbrightstar
    Holy crapola Batman!
    What is your opinion of this product?
    Purchased this from AMS a couple of weeks ago and after playing it for the past 2 weeks, to say I'm impressed is truly an understatement. I have several amps from a Fender HRD to a Roland cube 20 and enjoy the tonality of this amp 100%. It sounds great with my archtops,my semi-hollow bodies and my solid bodies I play mostly blues and jazz standards and rarely use effects with the exception of reverb and chorus on occasion. I didn't expect too much for $200 bucks and boy was I wrong! Play it and you too will be pleasantly surpeised.
    Ed H Norris
    Product Rating brightstarbrightstarbrightstarbrightstardullstar
    More than a bargain,
    What is your opinion of this product?
    This amp is just what I need right now to play electric acoustic & solid body.
    Old man Jimmy
    Product Rating brightstarbrightstarbrightstarbrightstarbrightstar
    Boss Katana 50 lives up to hype
    What is your opinion of this product?
    This little amp is very good right out of the box. The Boss Tone Studio software offers a lot of additional custom tone settings. It was easy to get a variety of mostly clean settings. My only complaint is the orientation of the controls on the back of the top. Very hard to see when the unit is on a stand while I am seated. Probably not an issue for those who play standing up.
    Product Rating brightstarbrightstarbrightstarbrightstarbrightstar
    Supreme tones !
    What is your opinion of this product?
    This amp is really awesome! I was pleasantly supprised when I put it on 50w and the brown sound. Then I also like the cleans and the way pedals work with this tone house! All settings sound killer! I haven't down loaded any effects yet. I like the way it cleans up with your volume knob and it feels very tube-like! I highly recommend this amp for the tones and the price point!
    Allen Green
    Product Rating brightstarbrightstarbrightstarbrightstarbrightstar
    Vast sound range with ONE ESPECIALLY GREAT TONE
    What is your opinion of this product?
    I got the BOSS for the array of EFX but found the ACOUSTIC SETTING to be the most wonderful of all. With the 12" speaker and this setting, my humble parlor guitar sounds like a portable planetarium of tone.
    Michael Gnapp
    Product Rating brightstarbrightstarbrightstarbrightstarbrightstar
    Simply incredible.
    What is your opinion of this product?
    I've used Roland JC series amps since 1977. I've also used quite a few other big name amps. I trust Roland. Boss pedals have never let me down. When the Katana line came out I bought the 100-212 combo from AMS, and can honestly say it's the most versatile and user-friendly amp I've ever owned, with enough power for any venue. I get a lot of small-venue gigs, so decided to add the KTN 50 to my arsenal. It's as tiny as it can get, and lightweight. Half the programmable channels, but enough for me. AMS got it to me quickly, and I received it a couple days ago. It's already been on two gigs, and lives up to its name. This little amp is amazingly deceptive... had to put it on the 25-watt setting last night to stay in the mix in a medium-large venue. The small size is just a front for big tone and volume! I'm going to order another KTN 50 and run them in stereo, one on each side of the stage, with the KTN 100-212 in the center! All for just over a grand!
    Product Rating brightstarbrightstarbrightstarbrightstarbrightstar
    The Hype Is True
    What is your opinion of this product?
    Forget LED screens, artist presets and other stupud tech overkill. The Katana is based on a good old tube driven EL34 amp with 50+ Boss pedals to pick from. Great tone and ease of use has made the Katana the most talked about amp on guitar forums since it's release. Been playing for decades and haven't seen an amp that has been this popular after release. There's plenty of great amps these days. Ive owned most modeling type amps over the years and Roland/Boss beat the pack with without unnecessary bells and whistles. It's a perfect blend of what's needed and what's not.
    Rod Tankerson
    Product Rating brightstarbrightstarbrightstarbrightstarbrightstar
    What is your opinion of this product?
    I play professionally so needless to say I have all kinds of Fender Twins and want to be Twins (LOL). Over the past few years I have been upgrading and downsizing to lighter amps. I played a lot of "Named Brand" amps that are either weak sounding or just so mired in Tech they are impracticable live. I absolutely love this amp. I have the GA pedal and using the Panel as a channel I have all the variations I need for a typical performance. For my performances I need beefy clean, slightly overdriven, Chorus/trem, insane solo with drive and one with crunch. I get it all. And simple flexibility. The quality is good. The online sound library is expansive. The best part is I have the 100w 1-12. It craankksss!!! Like sounds good and cranks. I own another 1-12 competitor and it just doesn't have the tone of this WAZA
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