Frequently Bought Together

+
Ernie Ball P06444 Flex Patch Cable Black 3 Pack 6 Inch
+
Music Nomad MN286 Pedal Care Kit for Guitar and Bass
=
$264.97

Boss Katana KTN-25 Guitar Combo Amplifier

Compact 25W guitar amp with six amp voices, 60+ BOSS effects, Bluetooth connectivity, app control, presets, and authentic tube-inspired tone for practice and creativity.

OR

h m s

free-shipping-icon
In Stock!
Remove one item Add one item

Compare

Compare! Here are all the serial numbers of this model we have in stock. Compare them all and select your favorite!

    2 Day Shipping Icon2 Day Shipping Icon

    Fast & Free Shipping

    Did you know AMS is the only music distributor with four distribution centers? And that means we can offer super-fast shipping on all your music products. Whether you don’t want the spark of inspiration to fade or you really need that replacement speaker before the next show, we have you covered anywhere in the U.S. And even better, it’s FREE!

    Special Return Conditions

    If defective, this item must be exchanged directly through the manufacturer. It can only be returned to us if it is unopened.

    Rock Now Pay LaterRock Now Pay Later

    0% Interest Payment Plan

    Don’t sell your soul to a creditor to get the gear you need. At AMS, we want to lower the barriers to create. That’s why we offer in-house 0% financing, and you don’t even have to open a new line of credit! Spread out payments on your credit card to simplify financing and avoid hefty late fees or service charges. Cost shouldn’t interfere with your creativity.

    Free Extended WarrantyFree Extended Warranty

    Free 12 Month Extended Warranty

    You shouldn’t have to pay extra for a little peace of mind. When you purchase from AMS, you’ll get a free 12-month extended warranty to cover your purchase — and that’s in addition to any manufacturer’s warranties! Thousands of items in our catalog feature the “Gold Lock Extended Warranty,” so you can feel confident in your purchase.

    45 Day return icon45 Day return icon

    45 Day return

    Sometimes the gear on the computer screen seems like a better fit than when you actually get your hands on it. We understand, and that’s why AMS offers an industry-leading 45-day money-back guarantee. If you’re not happy with an item, you have a full month and a half to send it back! We don’t want to just sell you gear. We want to sell you the RIGHT gear — even if it takes a few tries.

    AMS AgentAMS Agent

    Have questions? 

    Talk to a sales specialist!

    800-319-9043

    Find your creative voice with Katana-25—a compact powerhouse built for everyday home playing. With six unique amp characters, over 60 BOSS effects, Bluetooth, and a companion app packed with sound and playing tools, Katana-25 pushes you to explore new tones and sharpen your skills every time you plug in.

     

    Ready to rock.

    Katana-25 is filled with dialed-in tones for immediate satisfaction. It sounds great straight out of the box, providing everything you need to explore different styles and enjoy playing from day one.

     

    Genuine tube amp tone and feel.

    Key to the Katana series is the advanced BOSS Tube Logic design philosophy, which delivers the authentic tube sound and feel that’s the benchmark among pro players everywhere. Like classic tube designs, Katana-25’s speaker and 25-watt reactive analog power section work in harmony to create a highly interactive playing experience with rich, warm bass, sweet high-end detail, and punchy dynamic response.

     

    Solid cabinet, lightweight design.

    The Katana-25 cabinet features special BOSS design elements for optimized tone in a compact package. The open-back configuration, careful construction, and custom eight-inch speaker come together to produce full, satisfying sound that brings every playing session to life.

     

    Premium sounds for every style.

    Katana-25’s six unique amp characters allow you to play any musical style with studio-grade tone, from pop, blues, and country to classic rock and high-gain metal. One amp character is tuned for acoustic-electric instruments, further increasing this amp’s versatility. You can also enhance sounds with over 60 effects from the historic BOSS library (5 simultaneously), with the full selection and deep sound editing available in the companion BOSS Tone Studio app.

     

    Inspiration at your fingertips.

    The Tone Setting section includes 20 ready-to-play presets for instant inspiration, plus 10 empty slots to store your own creations. You can also tweak core amp and effects parameters from the panel to make detailed adjustments without opening the app. In addition, you have a tap tempo button for delay effects and a convenient built-in tuner, an essential tool for every guitarist.

     

    Selectable Power Control.

    Inspired by stage-class Katana models, Katana-25 features a Power Control to dial in responsive, cranked-amp tone at modest sound levels. Just flip a switch to toggle between full power punch and a half-watt mode that produces bedroom-friendly levels without sacrificing tone quality or feel.

      

    Jam and learn with onboard Bluetooth.

    Integrated Bluetooth supercharges your guitar experience with smartphone connectivity. Jam along to songs from your device’s library through the onboard speaker or headphones. Then fire up BOSS Tone Studio to edit tones and explore a world of new sounds on BOSS Tone Exchange. There’s also a powerful Session feature that lets you browse and play YouTube content within the app and set up automatic Tone Setting changes as you play.

     

    Remote operation.

    Katana-25 offers several options for controlling sounds in real time. Connect a BOSS footswitch to the top-panel jack to switch Tone Settings hands-free. Or select sounds and adjust parameters wirelessly with the FS-1-WL Wireless Footswitch or EV-1-WL Wireless Expression Pedal.

     

    Boss Katana KTN-25 Guitar Combo Amplifier Features:

    • Compact home amplifier with acclaimed Katana tone
    • Authentic tube amp sound, feel, and response with the BOSS Tube Logic design philosophy
    • Powerful sound with a custom eight-inch speaker and a 25-watt reactive analog power amp
    • Six amp characters with variations, covering everything from sparkling clean to high-gain “brown sound” tones
    • Dedicated amp character tuned for acoustic-electric instruments
    • Over 60 BOSS effects, with the ability to use up to 5 at once (access the complete selection of effects with the BOSS Tone Studio app)
    • Selectable Power Control: max power (25 watts) or 0.5W for cranked-amp tones at bedroom levels
    • High-quality cabinet construction delivers rich, full sound in a compact, lightweight design
    • Tone Setting section for calling up ready-to-play sounds with different amp characters and effects
    • Personalize presets, create custom sounds, and save setups with the simple interface and clear display
    • Easily shape tones with gain, volume, and three-band EQ controls
    • Tap tempo button to sync delay effects
    • Convenient onboard tuner  
    • Stream and play along with songs from a smartphone, tablet, or other smart device via integrated Bluetooth
    • Companion BOSS Tone Studio app with an intuitive interface, deep sound editing tools, and access to global sound sharing on BOSS Tone Exchange
    • Use the app’s Session function to play along with YouTube videos and set up automatic Tone Setting changes while a video plays
    • Dedicated output for quiet practice with headphones
    • Class-compliant USB-C interface for direct recording to a computer or mobile device
    • Optional external control with a BOSS FS-series wired footswitch, FS-1-WL wireless footswitch, or EV-1-WL wireless expression pedal
    Shop Similar Models

    Boss Katana KTN-25 Guitar Combo Amplifier Specifications

    Boss Katana KTN-25 Guitar Combo Amplifier Specifications
    Product Specifications
    • Rated Power Output: 25W
    • Nominal Input Level: INPUT: -10 dBu (1 MΩ)
    • Speaker: 1x 8" / 20 cm
    • Controls: Power Switch
    • Amplifier Controls: Gain, Volume
    • EQ Controls: Bass, Middle, Treble
    • Tone Setting Controls: Select, Edit/Tuner Button, Effects Button, Tap Button
    • Master Controls: Power Control Switch (0.5W, Max), Volume
    • Memory Presets: 30
    • Display: Backlit Graphic LCD (160 x 80 Dots)
    • Input Jack: 1/4" Phone
    • Footswitch/Expression Pedal Input: 1/4" TRS Phone
    • USB Port: USB Type-C
    • Headphone/Record Output: Stereo Mini Phone
    • AC Input: AC In
    • Bluetooth Support: A2DP Audio, GATT MIDI over Bluetooth Low Energy
    • Power Consumption: 25W
    • Dimensions: 360 x 180 x 310 mm / 14.2" x 7.1" x 12.2"
    • Weight: 4.8 kg / 10 lbs 10 oz
    • Included Accessories: Power Cord, Read Me First Leaflet
    • Compatible Footswitches: BOSS FS-5U, FS-6, FS-7, FS-1-WL
    • Compatible Expression Pedals: Roland EV-5, BOSS EV-30, FV-500L, FV-500H, EV-1-WL
    Copyright © 1996-2026 American Musical Supply, Inc. All rights reserved