Boss - KATANA-AIR EX Guitar Amplifier
Professional Sound in a Wireless Desktop Amp
Katana-Air EX is a powerhouse wireless desktop amp that delivers big stereo sound and authentic Katana tones in a compact footprint. With twin five-inch speakers, a custom wood cabinet, and 35 watts max power, this everyday practice companion dishes rich, resonant tones that rival amps much larger in size. A large variety of onboard amp characters and effects support every musical style, and you can customize setups and enhance daily sessions with the companion BOSS Tone Studio app for iOS and Android. And thanks to advanced BOSS wireless technology, you have complete freedom to move around with no instrument cable to trip you up.
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- 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
- Control effects and more with the optional EV-1-WL Wireless MIDI Expression Pedal and FS-1-WL Wireless Footswitch
| Output | <AC adaptor> |
| Maximum power output: 35W (17.5 W+17.5 W) | |
| <Battery> | |
| Rated power output: 20 W (10 W+10 W) | |
| Nominal Input Level | INPUT: -10 dBu (1 M ohm) |
| AUX IN: -10 dBu | |
| Nominal Output Level | LINE OUT (L/MONO, R): -10 dBu |
| Speakers | 12 cm (5 inches) x 2 |
| 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 | |
| Indicators | POWER |
| Bluetooth | |
| Guitar Wireless | |
| PANEL | |
| CH A | |
| CH B | |
| BST/MOD | |
| DELAY/FX | |
| REVERB | |
| TAP | |
| Connectors | Input jack: 1/4-inch phone type |
| AUX IN jack: Stereo miniature phone type | |
| PHONES OUT jack: Stereo miniature phone type | |
| TRANSMITTER IN jack: Stereo 1/4-inch phone type | |
| LINE OUT (L/MONO, R) jacks: 1/4-inch phone type | |
| USB port: USB B type | |
| DC IN jack | |
| Power Supply | AC adaptor (DC 13 V) |
| Alkaline battery (AA, LR6) x 8 | |
| Ni-MH battery (AA, HR6) x 8(commercially available) | |
| Roland Rechargeable Amp Power Pack (BTY-NIMH/A) | |
| Current Draw | 680 mA |
| Expected battery life under continuous use | Alkaline battery: Approximately 7 hours |
| Ni-MH battery: Approximately 10 hours (When using batteries having a capacity of 2500 mAh.) | |
| Roland Rechargeable Amp Power Pack (BTY-NIMH/A): Approximately 16 hours | |
| * These can vary depending on the specifications of the batteries, capacity of the batteries, and the conditions of use. | |
| Accessories | Owner’s Manual |
| Leaflet USING THE UNIT SAFELY | |
| Transmitter | |
| AC adaptor | |
| Power cord | |
| Options (sold separately) | Roland Rechargeable Amp Power Pack: BTY-NIMH/A |
| Wireless MIDI Expression Pedal: EV-1-WL | |
| Wireless Footswitch: FS-1-WL | |
| SIZE AND WEIGHT | |
| Width | 414 mm |
| 16-5/16 inches | |
| Depth | 192 mm |
| 7-7/16 inches | |
| Height | 236 mm |
| 9-5/16 inches | |
| Weight (excluding AC adaptor) | 5.6 kg |
| 12 lb 6 oz |
Boss
AUTHORIZED DEALERAvailable in store & online — Nantel Musique
Boss is one of the most recognized names in musical instruments worldwide. Known for exceptional build quality, innovative design, and reliable performance across every price range, Boss instruments are trusted by beginners and touring professionals alike.
at nantel musique, we carry a curated selection of boss guitar amps — each one inspected, set up, and backed by our expert team. every purchase includes our satisfaction guarantee and dedicated after-sales support.

