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Boss Katana-100 MKii Combo Amplifier with Effects

Regular price $379.99 USD
Sale price $379.99 USD Regular price
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  • Estimated delivery: Jul 14 - Jul 18
  • Free shipping on orders over $99

With 100 watts of power, a custom 12-inch speaker, and a suite of onboard effects, the Katana-100 amp delivers a commanding range of gig-worthy tones at an extremely affordable price!

The Katana-100 has twice the power, twice the number of channels (four instantly recallable tone settings) an effects send/return, and a 1/4" line out, making it the ideal entry-level amp for the aspiring stage performer.


The Boss Katana 100 MKii is an electric guitar amp, however, among its five amp voicings is a special Acoustic setting that allows it to sound warm and inviting when used with piezo pickup-powered instruments, such as electric bowed string instruments. In Acoustic mode this amp sounds great with violins, violas and -- thanks to a 12-inch speaker--cellos, providing a balanced, rich tone that can be easily customized with 3-band EQ controls.

Full-Toned Practice, Even At Low Volume

The Katana 100 also excels for home playing, with a uniquely efficient design and innovative Power Control that provides inspiring sound and response at low volumes, which is great for throttling back the volume at small stages and while playing at home, and also includes a Standby setting that mutes the sound for switching instruments or taking breaks. And by flipping out the integrated tilt stand, you can easily angle the amp back for better sound projection. There is also a 1/4" Headphone output jack on the back for self monitoring or a more immersive practice experience.

Onboard Effects Suite

With its built-in BOSS effects and recallable Tone Settings, the Katana-100 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 modulation, slicer, and more. You can load 15 different effects in the amp at one time and use up to three simultaneously. Four separate channels 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 foot switches and expression pedals for hands-free control on the gig.

Feature-rich but simple to operate

While the Katana-100 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.


  • Stage-ready 100-watt combo amp with a custom 12-inch speaker
  • 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
  • Four 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

Software, Updates and Drivers

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.

Visit for updates and driver downloads, which are available for both Windows and Mac operating systems.


Rated Power Output: 100 Watts
Nominal Input Level:

  • INPUT: -10 dBu (1 M ohm)
  • AUX IN: -10 dBu

Speaker: 12 inches (30cm) x 1
Power Consumption: 77 Watts


BOSS Katana 100 control panel

POWER switch
POWER CONTROL switch (STANDBY, 0.5 W, 50 W, 100 W)

GAIN knob

BASS knob

DELAY/FX button
REVERB button
TAP button

CH1 button
CH2 button
CH3 button
CH4 button
PANEL button


  • 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


  • Owner's manual
  • Power cord

Options (sold separately)

  • Footswitch: BOSS FS-5L
  • Expression pedal: Roland EV-5, BOSS FV-500L, BOSS FV-500H

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