BOSS Katana-Air EX 35W Wireless Portable Stereo Desktop Guitar Amplifier

Brand: BOSS


Delivering massive stereo sound and authentic Katana tones in a compact form factor, the all-new powerhouse BOSS Katana-Air EX desktop amplifier features advanced wireless technology, granting you the freedom to move around. Loaded with stage-ready Katana amps and effects, and with versatile features for performance, rehearsal, and recording, this powerful little amp is the ultimate take-anywhere companion!

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The all-new compact and portable BOSS Katana-Air EX features two five-inch speakers inside a custom wooden cabinet to deliver up to 35W of massive stereo power and authentic Katana tones. Capable of delivering lush, resonant tones that rival amplifiers far bigger in size, Katana-Air EX is equipped with a huge selection of onboard amplifier models and effects to support any style of playing or genre. Customize setups and refine daily sessions with the BOSS Tone Studio app for iOS and Android, and with advanced BOSS wireless technology built right in, you can move around freely without the hassle of messy cables.


  • Powerful desktop guitar amplifier with advanced BOSS wireless technology
  • Rich, resonant stereo sound with dual five-inch speakers, wood cabinet with bass-reflex port, and 35 watts max power*
  • Five versatile amp characters derived from the acclaimed Katana stage amplifier series, including a neutral amp character for acoustic-electric guitar and bass
  • Over 60 world-class BOSS effects on board
  • Class-leading BOSS wireless technology delivers rock-solid audio performance with ultra-low latency
  • Compact wireless transmitter with up to 12 hours of runtime and integrated charging port in the amp
  • Six onboard memories for storing favorite amp and effects setups
  • BOSS Tone Studio mobile app (iOS/Android) with deep sound-editing tools and powerful practice features
  • Download and share Livesets on BOSS Tone Exchange
  • Built-in USB audio interface for computer music production
  • Stereo line output with mic’d cab emulation
  • Play along with songs from a mobile device or music player via the analog aux input or Bluetooth®
  • Powered with the included adaptor, eight AA batteries, or optional Roland BTY-NIMH/A Rechargeable Amp Power Pack

Stage-Class Sound in a Desktop Amp

Designed to offer an authentic stage-style playing experience in a compact form factor, Katana-Air EX is equipped with two custom 5-inch speakers in a meticulously designed wood cabinet. Delivering full-bodied sound with lush resonance typically only possible with larger format amplifiers, Katana-Air EX provides punchy, high-fidelity tones to inspire creation and encourage natural techniques that translate directly to larger rigs. Thanks to a tuned bass-reflex port, the versatility of this amplifier is greatly increased, resulting in a tight low-end response for low-tuned guitar riffs and bass guitars.

Premium Katana Amps and Effects

Loaded with sounds taken from the Katana stage amplifiers, custom-tuned for maximum response and expression within the desktop cabinet, Katana-Air EX gives players access to five distinct amp characters. Ranging from glassy clean, to BOSS's custom high-gain Brown sound, along with characters designed for use with acoustic-electric guitars and basses, you also get over 60 BOSS effects like overdrives, distortions, boosters, as well as modulation, delay, and reverb effects that make brilliant use of the amplifier's stereo speaker configuration. With six onboard memories, you can instantly store and recall your favourite amp and effects setups.

High-Performance BOSS Wireless Technology

At the heart of Katana-Air EX is BOSS's coveted digital wireless technology, offering transparent sound and ultra-low latency with no lag or dropouts. With up to 12 hours of playing time per charge, the included wireless transmitter also features an integrated motion sensor and standby function to save power when the system isn't being used. This means you can keep the transmitter plugged in between sets, and turn the system on by just picking up your guitar- and when it's time to charge, simply connect the transmitter to the conveniently integrated docking port.

Versatile Features for Practice, Recording, and Performance

Engineered to flow with all your musical endeavours, the highly flexible Katana-Air EX features built-in Bluetooth connectivity- allowing players to edit tones wirelessly via the BOSS Tone Studio app, and jam along with their favourite songs from their mobile device's music library. If inspiration is what you need, log on to BOSS Tone Exchange and discover tones created by other users. With the USB connection, you can record your tracks directly to your favourite DAW, and use the stereo line output with mic'd cab emulation to connect directly to a PA or mixing console with no external microphones required. You can even use Katana-Air EX as a high-quality Bluetooth speaker for livening up a party!

Build Skills Faster with Powerful Session Tools

With integrated tools to supercharge your learning with YouTube video content, the BOSS Tone Studio app allows you to edit tones on the fly, as well as create song lists for fast recall, and loop sections for pinpoint study. When you're ready to play along with backing tracks and songs, automatic memory switching kicks your performance up a notch - select a clean sound for the verse, crunch for the chorus, and distortion with delay and reverb for your solo- and they'll all switch at your desired time as the video plays. You can even save your custom switching setups with the BOSS Tone Exchange community!

Specifications - Katana-Air EX

  • Output
    • AC Adaptor: 35W (17.5W + 17.5W)
    • Battery: 20W (10W + 10W)(when using the alkaline batteries, Ni-MH batteries)
  • Nominal Input Level
    • INPUT: -10dBu (1MΩ)
    • AUX IN: -10dBu
  • Nominal Output Level
    • LINE OUT (L/MONO, R): -10dBu
  • Speakers: 2x 5"
  • Controls
      • POWER button
      • Bluetooth button
      • MASTER knob
    • Amplifier
      • AMP TYPE knob
      • GAIN knob
      • VOLUME knob
    • Equalizer
      • BASS knob
      • MIDDLE knob
      • TREBLE knob
    • Multi-Effect
      • BST/MOD knob
      • BST/MOD button
      • DELAY/FX knob
      • DELAY/FX button
      • TAP button
      • REVERB knob
      • REVERB button
    • Tone Setting
      • CH A button
      • CH B button
      • PANEL button
  • Connectors
    • Input Jack: ¼" Phone Type
    • AUX IN Jack: Stereo Miniature Phone Type
    • PHONES OUT Jack: Stereo Miniature Phone Type
    • TRANSMITTER IN Jack: Stereo ¼" Phone Type
    • LINE OUT (L/MONO, R) Jacks: ¼" Phone Type
    • USB Port: USB B-Type
    • DC IN Jack
  • Power
    • Power Supply
      • AC Adaptor (DC 13V)
      • 8x Alkaline Battery (AA, LR6)
      • 8x Ni-MH Battery (AA, HR6)
    • Current Draw: 680mA
    • Expected Battery Life Under Continuous Use
      • Alkaline battery: Approximately 7 Hours
      • Ni-MH battery: Approximately 10 hours (when using batteries having a capacity of 2500mAh.)
  • Accessories
    • Owner’s Manual
    • Transmitter
    • AC adaptor
    • Power cord
  • Dimensions
    • 414mm (W) x 192mm (D) x 236mm (H)
    • 5.6kg

Specifications - Wireless Transmitter (WL-T)

  • Nominal Input Level: -10dBu (1MΩ)
  • Control: Power button
  • Indicator: BATTERY
  • Connectors
    • Input Plug: Stereo ¼" Phone Type
    • DC IN 5V Port: USB Micro-B
  • Power
    • Power Supply: Lithium-Ion Battery (Supplied from the DC IN 5V port)
    • Current Draw: 47mA
  • Expected Battery Life Under Continuous Use: Approximately 12 hours
  • Dimensions
    • 87mm (W) x 22mm (D) x 36mm (H)
    • 43g

Additional information

Weight 6 kg
Dimensions 30 × 25 × 48 cm

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