With Katana Gen 3, the acclaimed BOSS stage amplifier series evolves to take your guitar ambitions to the next level. New Tube Logic enhancements enrich the core platform with even greater sound, feel, and response, including an expressive Pushed amp character that edge-of-breakup fans will love. The BOSS Tone Studio app has also been updated, making your remote amp and effects editing workflow more intuitive than ever. Loaded with inspiring tone tools and diverse connectivity options, Katana Gen 3 is your indispensable centrepiece for studio recording, live performance, and daily practice. The Katana-50 EX Gen 3 model extends the core features of the Katana-50 Gen 3 with enhancements for live performers. Additions include an upgraded speaker, Line Out and Stereo Expand functions, and GA-FC/GA-FC EX Foot Controller support.

Backed by advanced Tube Logic amplifier architecture and reactive Class AB power, the BOSS Katana series has become a standard for guitarists everywhere since its introduction in 2016. Katana amps embody decades of BOSS development knowledge, providing professional, tube-inspired sound coupled with modern advantages like onboard effects, one-touch memory recall, deep sound customisation, and reduced weight. Katana Gen 3 elevates the lineup with even more range and versatility, bringing you a playing experience that goes where no other amps can.

Tube Logic recreates tube circuitry and all its complex interactions at a component level. Boss' approach continues to evolve with refinements to the five amp characters available in previous Katana models, including the iconic high-gain Brown type. The new Pushed character spotlights internal dynamic enhancements with the pleasing touch-responsive gain of a clean combo driven into harmonic saturation. All six amp characters also include a selectable variation for 12 distinctive tones. In comparison with the standard 50-watt model, Katana-50 EX Gen 3 features an upgraded speaker for increased projection and resonance on stage.

As every tube amp lover knows, the sound becomes richer, fuller, and more responsive as you turn up the volume. Unfortunately, it also gets way too loud for many playing situations. An external power attenuator is a common solution, but it can introduce artefacts that colour the amp’s tone and feel. The integrated Power Control in Katana Gen 3 delivers the best of all worlds, letting you dial in cranked-amp inspiration with no adverse effect on the sound. Just turn the panel knob to transparently harness the level for everything from live stage playing to daily bedroom jams.

Katana Gen 3 features five simultaneous effect categories loaded with essential selections from the historic BOSS library. Booster, Mod, FX, Delay, and Reverb sections offer enhanced sound quality, grab-and-go parameter controls, and three variations each for access to 15 unique effects. BOSS Tone Studio unlocks additional possibilities, allowing you to customise the onboard effects from 60 different types and tweak deep options not available from the amp’s panel. And when the optional Bluetooth® Audio MIDI Dual Adaptor is installed, you can wirelessly edit sounds on the gig using the BTS editor app on your smartphone.

BOSS Tone Studio for Katana Gen 3 offers new visual enhancements and graphic customisation options that make crafting your tone faster and more intuitive. Explore amp and effect editing tools, change the effect order, and shape the overall sound with the three-way Contour control and multiple EQs. Dial in system-wide settings and behaviours. And organise custom setups for all your gigs. You also have access to BOSS Tone Exchange, where you can download pro setups and share sounds with the worldwide Katana community.

Katana-50 EX Gen 3 features a host of powerful tools for modern performers. Four Tone Setting memories let you store and recall complete amp/effect setups, while rear-panel jacks support remote control with footswitches and an expression pedal. The GA-FC and GA-FC EX Foot Controllers extend your capabilities even further, providing complete stage control solutions for your Katana Gen 3. You can access four additional Tone Settings (eight total), turn effects on/off, integrate expression pedals, and more. The GA-FC EX model also includes an expansion option to double your footswitches or control two Katana amps at once. Katana-50 EX Gen 3 includes connectivity to meet every need. Plug in headphones to practice quietly with stereo sound. Send a feed to a house PA via the Line Out jack. And record to your favourite music software on computers and mobile devices over USB-C. All audio outputs feature IR-based cabinet sound for great direct tone, with three Air Feel types and two customizable settings in BOSS Tone Studio.

Features
  • Third-generation Katana amplifier with evolved Tube Logic sound and expressiveness
  • 50-watt combo amp with a custom 12-inch speaker designed for stage performance
  • Distinctive gray and black matrix grill
  • Six amp characters—including the newly developed Pushed type—plus a selectable variation for each
  • Five independent effects sections: Booster, Mod, FX, Delay, and Reverb
  • Four Tone Setting memories for storing all amp and effect settings
  • Power Control for achieving cranked-amp tone and response at low volumes
  • Updated Boss Tone Studio app (Windows/macOS) for remote editing from a computer or mobile device
  • Download and share Katana sounds on BOSS Tone Exchange
  • Compatible with sounds created on previous stage-class Katana models
  • Power Amp In for preamps, modelers, and multi-effects
  • Stereo Expand function to link with a second Katana amp
  • Stereo headphones jack, line output, and USB output with IR-based cabinet sound
  • Record/playback tracks in music production software on a computer or mobile device* via a USB-C®
  • Jacks for up to two footswitches and an expression pedal
  • Supports the GA-FC and GA-FC EX Foot Controllers for complete stage control
  • Optional Bluetooth® Audio MIDI Dual Adaptor (BT-DUAL) for wireless audio playback from a mobile device and remote editing from the BTS app (iOS/Android)
  • Third-generation Katana amplifier with evolved Tube Logic sound and expressiveness
  • 50-watt combo amp with a custom 12-inch speaker designed for stage performance
  • Distinctive gray and black matrix grill
  • Six amp characters—including the newly developed Pushed type—plus a selectable variation for each
  • Five independent effects sections: Booster, Mod, FX, Delay, and Reverb
  • Four Tone Setting memories for storing all amp and effect settings
  • Power Control for achieving cranked-amp tone and response at low volumes
  • Updated Boss Tone Studio app (Windows/macOS) for remote editing from a computer or mobile device
  • Download and share Katana sounds on BOSS Tone Exchange
  • Compatible with sounds created on previous stage-class Katana models
  • Power Amp In for preamps, modelers, and multi-effects
  • Stereo Expand function to link with a second Katana amp
  • Stereo headphones jack, line output, and USB output with IR-based cabinet sound
  • Record/playback tracks in music production software on a computer or mobile device* via a USB-C®
  • Jacks for up to two footswitches and an expression pedal
  • Supports the GA-FC and GA-FC EX Foot Controllers for complete stage control
  • Optional Bluetooth® Audio MIDI Dual Adaptor (BT-DUAL) for wireless audio playback from a mobile device and remote editing from the BTS app (iOS/Android)
Rated Power Output
50 W
Nominal Input Level
INPUT: -10 dBu (1 M ohms)
AUX IN: -10 dBu (20 k ohms)
Speaker
30 cm (12 inches) x 1
Controls
POWER switch
MASTER knob
POWER CONTROL switch (STANDBY, 0.5 W, HALF, MAX)

[AMPLIFIER]
VARIATION button
AMP TYPE switch (ACOUSTIC, CLEAN, PUSHED, CRUNCH, LEAD, BROWN)
GAIN knob
VOLUME knob

[EQUALIZER]
BASS knob
MIDDLE knob
TREBLE knob

[EFFECT]
BOOSTER button
MOD button
FX button
DELAY button
REVERB button
TAP button
BOOSTER knob
MOD knob
FX knob
DELAY knob
REVERB knob

[TONE SETTING]
CH1 button
CH2 button
PANEL button
Indicators
VARIATION
BOOSTER
MOD
FX
DELAY
REVERB
TAP
SOLO
CH1
CH2
PANEL
Connectors
INPUT jack: 1/4-inch phone type
POWER AMP IN jack: 1/4-inch phone type
LINE OUT jack: 1/4-inch phone type
STEREO PHONES jack: Stereo 1/4-inch phone type
CTL CH1/CH2 SOLO jack: 1/4-inch TRS phone type
EXP PEDAL jack: 1/4-inch TRS phone type
AUX IN jack: Stereo miniature phone type
USB port: USB C type
BLUETOOTH ADAPTOR SLOT: Bluetooth® Audio MIDI Dual Adaptor
AC IN jack
Power Consumption
47 W
Accessories
Owner's manual
Power cord
GA-FC sticker
Options (sold separately)
Footswitch: BOSS FS-5L, BOSS FS-6, BOSS FS-7
Expression pedal: Roland EV-5, BOSS EV-30, BOSS FV-500L, BOSS FV-500H
GA FOOT CONTROLLER (GA-FC,GA-FC EX)
Bluetooth® Audio MIDI Dual Adaptor (Model BT-DUAL)
Amplifier Stand: BAS-1
SIZE AND WEIGHT (INCLUDE HANDLE AND RUBBER FEET)
Width
470 mm
18-9/16 inches
Depth
238 mm
9-3/8 inches
Height
398 mm
15-11/16 inches
Weight
11.7 kg
25 lbs 13 oz
* 0 dBu = 0.775 Vrms
*The specifications are subject to change without notice.
SKU KTN503EX
Brand Boss
Shipping Weight 12.0000kg
Shipping Width 0.400m
Shipping Height 0.240m
Shipping Length 0.470m
Shipping Cubic 0.045120000m3
Unit Of Measure ea

Be The First To Review This Product!

Help other The Music Spot users shop smarter by writing reviews for products you have purchased.

Write a product review

We Also Recommend

More From This Category