BOSS Katana-50 Gen 3 Guitar Amplifier
- 50 watts, Class AB combo
- 12 inch speaker
- 3 bands of tone control
- 3.5mm jack and USB connections
- Tube Logic with Pushed amp character
- BOSS Tone Studio app editing
- 2 year manufacturer warranty
Last refreshed Oct 2, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A stage-ready modeling combo with app editing and a push-style amp voice for players after crunchy tones. It is a wood cabinet and sizeable.
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ASIN: B0D1Z6VHD8Model: KTN-50Category: Combo Amps
Overview
BOSS updates its Katana line with Tube Logic enhancements in this combo, aimed at expressive, responsive tone. A wood enclosure houses a twelve inch speaker, and the Tone Studio app edits the amp and its effects remotely.
The Pushed character gives a gritty crunch, and the app speeds up editing. Size and weight matter for a combo of this kind, and the listing leaves out weight.
Who it's for
Guitarists who move between practice and small stages get a flexible combo with remote editing. Players who need a very light amp or a pure tube circuit should look elsewhere.
Pros and cons
- Tube Logic response
- Pushed amp character
- App-based remote editing
- USB and 3.5mm connections
- Weight not listed
- Wooden cabinet is bulky
- Single output channel listed
Performance notes
The Tube Logic circuit shapes feel and response, and the Pushed character adds edge-of-breakup grit. The speaker handles rehearsals, and the app allows deeper tweaks than the front panel.
Specifications
| Brand | BOSS |
|---|---|
| Model | KTN-50 |
| Dimensions & fit | |
| Item Dimensions D x W x H | 21 x 12 x 17 inches (D x W x H) |
| Speaker Size | 12 inches |
| Capacity & performance | |
| Output Wattage | 50 watts |
| Power & efficiency | |
| Power Source | Corded electric |
| Construction & materials | |
| Enclosure Material | Wood |
| Compatibility & installation | |
| Compatible Devices | Guitar |
| Warranty & support | |
| Warranty Description | 2 year manufacturer |
| Other details | |
| Amplifier Type | Class AB |
| Connector Type | 3.5mm jack, USB |
| Number of Bands | 3 |
Closest rivals on specs
Fender Mustang LT25 Guitar Amplifier- Output Wattage 50 vs 25 watts (+100%)
- Speaker Size 12 vs 8 inches (+50%)
Fender Champion II 25 Watt Electric Guitar Combo Amp- Output Wattage 50 vs 25 watts (+100%)
- Speaker Size 12 vs 8 inches (+50%)
Frequently asked questions
How do I look after the BOSS Katana-50 Gen 3?
The listing gives no care steps. The cabinet is wood, 21 x 12 x 17 inches, so keep it dry and move it carefully.
Does it work with an app?
Yes. The BOSS Tone Studio app supports remote amp and effects editing.
How does it connect to a computer?
USB and a 3.5mm jack are listed.