

🎸 Unleash pro tones wirelessly — your ultimate desktop amp revolution!
The BOSS Katana-Air EX is a compact yet powerful 35-watt wireless desktop amplifier featuring dual 5-inch speakers and a custom wood cabinet for rich stereo sound. It offers five versatile amp characters derived from the acclaimed Katana series, over 60 premium BOSS effects, and ultra-low latency wireless technology with up to 12 hours of battery life. With onboard memory, USB audio interface, and mobile app integration, it’s designed for professional-quality practice, recording, and play-along convenience.










| ASIN | B0CJBT17BR |
| Amplifier Type | Solid State |
| Best Sellers Rank | 1,139 in Musical Instruments & DJ ( See Top 100 in Musical Instruments & DJ ) 18 in Guitar Combo Amps |
| Box Contents | Owner's Manual |
| Brand | BOSS |
| Brand Name | BOSS |
| Colour | Black |
| Compatible Devices | Electric guitar, electro-acoustic |
| Compatible devices | Electric guitar, electro-acoustic |
| Connector Type | USB |
| Country of Origin | China |
| Customer Reviews | 4.5 out of 5 stars 2,906 Reviews |
| Enclosure Material | Wood |
| Item Dimensions D x W x H | 49.2D x 32.6W x 26.4H centimetres |
| Item Type Name | KTN-AIR EX |
| Item Weight | 0.3 Kilograms |
| Manufacturer | BOSS |
| Material | Wood |
| Model Name | KTN-AIR EX |
| Number of Bands | 2 |
| Output Channel Quantity | 2 |
| Output Wattage | 35 Watts |
| Output wattage | 35 Watts |
| Power Source | AC adapter |
| Product Warranty | 2 year manufacturer. |
| Product dimensions | 49.2D x 32.6W x 26.4H centimetres |
| Speaker Size | 5 Inches |
S**N
It's NOT a toy
Having previously used/suffered a succession of 'toy' amps (Orange crush, mini Marshall stack, etc..) I'd been after a 'sofa amp' for ages. You know- when you want to noodle away when watching TV but don't want to bring anything bulky downstairs... So I'd decided on the Blackstar Fly or this. SO happy I chose this! Nothing wrong with the Blackstar Fly- it's a cracking little box. But the Katana mini is awesome! Once you get it dialled in properly (keep the treble below halfway) you'd swear you had a 'real' amp sitting there by the fireplace. All three channels are perfectly useable. The gain knob works very well with each, and combined with your guitars volume knob you can tailor pretty much any tone. Delay is a nice feature too, with time and level controls. (TIP - turn the time all the way down and the level up to get a half decent reverb!) Crunchy gain sounds are rewarding, as is the high gain 'Brown Sound' setting. If, like me, you are convinced your family/spouse/pets need to hear your version of that-bit-you-can-play-from-Eruption, then you have found your practice amp!
J**Y
Amazing.
This thing is incredible. Very good sound, good battery life and with the accompanying app has a massive range of uses. Very happy with the purchase and would recommend to anyone.
A**E
Solid
Sounds great, it has effects and several other features.
M**P
It's good, but is a bit complicated
Dropping a star for complexity, but it does deliver on the features. To configure this, you'll need an App, and one day, Roland will pull it from Google Play and the Apple Store when this is considered obsolete. I personally wasn't that interested in all the "pedal" effects, but did want the Bluetooth audio playback capability, and USB recording. This is a good alternative to the Mustang Micro Plus, though arguably better for a Bass, as it has a bass-specific mode. Bluetooth Pairing is not trivial, as you effectively do it twice: once for the configuring App (Bluetooth MIDI) and once for audio streaming (Bluetooth Audio). However, it gives you the flexibility to configure using one device and stream your backing track from another. Playback can be done over USB-C - note for iPads, the audio playback level seems to be fixed (unlikely playback via Bluetooth). Easily adjusted on the Katana Go itself, but annoying as that affects both the Guitar and backing track volume. App is a little clunky (as seems to be common for the Boss apps) - fixed portrait mode, and scaled up (pixelated) on large displays such as an iPad. However, it is only needed for configuring. The "stage feel" button is great. This works for both the guitar and the backing track streamed over Bluetooth (different from the reverb effect on the Mustang Micro, which only affects the guitar). Tuner works for a "low B" on a five (or six-string) Bass. A minor disagreement with my Peterson Strobestomp tuner on that low B, but near enough given that string is hard to tune accurately. Yet to find a clean-clean Bass setting (one without compression - a.k.a. Studio mode on the Mustang Micro). This can be achieved in the app, but it would have been nice as an easily accessible default. During solo practice sessions, you want to hear all your faults.
D**5
Great little amp.
Wow what a cracking little Amp the Boss KTN mini is. The output of sound belise the size of the little 7 watt amp. My 20 watt cube and 15 watt mini cube are Roland's, and a bit heavy to shift about. This lives up to the Roland name with knobs on. Works great with my Epiphone Sg 400 and Guild Acoustic along with my Taylor acoustic guitar. Really nice Amp. Decent price tag quality product despite being plastic a really good build quality. No problems in recommending this Five stars.👍🎛️
J**J
Amazing sounds
Very impressed. Using this with noise cancelling headphones makes you feel like you're in a recording studio. The sounds are so clear. Mobile phone app is fine (I also have a Katana 50 amp). The switches on the side make it easy to switch between various setting you have defined on the app. On a Les Paul the headphone amp does tend to spin around. Easer to push the controls on a Strat.
W**N
Great quality and size, looks great with nice functions
Looks good and trusting other reviews but don't have any worries, it's just for the living room, I'm happy it's battery operated less faffing about, fits in my unit perfectly so happy 😁
G**R
Superb Amp
What a fantastic practice amp. I have it’s 50watt bigger brother and in comparison where quality of build and sound is concerned they are on a par. Obviously this doesn’t have massive amounts of effects on board, but it gives lovely clean tones, great dirty tones and excellent delay, there is a switch to select clean, crunch or brown, you then alter the settings using the volume, gain, bass, middle, treble, time and level controls. All of the settings are excellent and no matter what your preferred tone is, you will find it on this amp. There is an audio input to attach a microphone or allowing you to play a jam track, drum app track or favourite song to play along with from a phone or mp3 player, this input is totally unaffected by any of the controls on the amp, even the volume which is altered using the phone/mp3 players own controls. There is an output for headphones or recording device i.e. pc, laptop, voice recorder. It is light and compact and can be carried anywhere when used on batteries, 6x AA batteries required. I haven’t changed mine yet since purchasing this amp and it’s used daily.
Trustpilot
2 days ago
2 weeks ago