Your tone. Dialed.

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.

• 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

Rated Power Output

25 W

Nominal Input Level

INPUT: -10 dBu (1 MΩ)

Speaker

20 cm (8 inches) x 1

Controls

POWER switch

[AMPLIFIER]
GAIN knob
VOLUME knob

[EQUALIZER]
BASS knob
MIDDLE knob
TREBLE knob

[TONE SETTING]
SELECT knob
EDIT/TUNER button
EFFECTS button
TAP button

[MASTER]
POWER CONTROL switch (0.5 W, MAX)
VOLUME knob

Memories

30

Display

Graphic LCD (160 x 80 dots, backlit LCD)

Connectors

INPUT jack: 1/4-inch phone type
FOOT SW/EXP PEDAL jack: 1/4-inch TRS phone type
USB COMPUTER port: USB Type-C®
PHONES/REC OUT jack: Stereo miniature phone type
AC IN jack

Bluetooth

Profile Support: A2DP (Audio), GATT (MIDI over Bluetooth Low Energy)

Power Consumption

25 W

Accessories

Leaflet "Read Me First"
Power cord

Options (sold separately)

Footswitch: BOSS FS-5U, BOSS FS-6, BOSS FS-7, BOSS FS-1-WL
Expression pedal: Roland EV-5, BOSS EV-30, BOSS FV-500L, BOSS FV-500H, BOSS EV-1-WL

Size and Weight (Include handle and rubber feet)

Width

360 mm
14-3/16 inches

Depth

180 mm
7-1/8 inches

Height

310 mm
12-1/4 inches

Weight

4.8 kg
10 lbs 10 oz

* 0 dBu = 0.775 Vrms