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Boss Katana 50 MkII EX 1x12" Guitar Amp Combo

Stage-class, 50-watt guitar combo amp with expanded features over the standard Katana 50 MkII!



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Product Description

The Boss Katana 50 MkII EX expands on the capabilities of the best-selling Katana 50 MkII guitar amp combo, providing more performance versatility in the same portable design. GA-FC and GA-FC EX support allows you to select Tone Setting memories, turn effects on/off, and even more with Boss' dedicated foot controllers. There's also a handy line output for sending mix-ready tone straight to a house PA, plus the ability to link a second Katana MkII amp with the Stereo Expand feature — for three-dimensional, immersive sonics!

Katana MkII takes the acclaimed Katana guitar amp series to the next level, turbocharging the core platform with more sounds, more effects, and more features. Cover any style with five amp characters and five variations. Colour your tones with a wide variety of customizable Boss effects. And extend your range with the latest Boss Tone Studio software, a power amp input for modellers and multi-FX, and many other enhancements.

Key Features

  • Stage-class, 50-watt combo amp with GA-FC/GA-FC EX Foot Controller support, Stereo Expand, and line output with cabinet emulation.
  • Tube Logic design approach produces class-defying power, authoritative punch, and cutting presence.
  • Five unique amp characters (Clean, Crunch, Lead, Brown, and Acoustic) and five variations for each.
  • Five independent effects sections (Booster, Mod, FX, Delay, and Reverb) with three selectable variations in each.
  • Dedicated Pedal FX for foot-controlled wah and pedal bend.
  • Boss Tone Studio software for customizing your sound with over 60 different Boss effects, channel and global EQs, adjustable routing, and much more.
  • Power Amp In for preamps, modellers, and multi-effects.
  • Four Tone Setting memories for storing and recalling all amp and effect settings.
  • Power Control for achieving cranked-amp tone and response at low volumes.
  • Stereo Expand out to link with a second Katana MkII.
  • Three Cab Resonance options (Vintage, Modern, and Deep) selectable in Boss Tone Studio.
  • Line, USB, and phones/recording outputs with mic'd cabinet emulation and three Air Feel settings (configurable in Boss Tone Studio).
  • Optional GA-FC and GA-FC EX foot controllers provide complete amp control, including expanded Tone Setting selection, effects on/off, expression pedal control, and more.
  • Connections for up to two footswitches or an expression pedal.
  • Download and share Livesets at Boss Tone Exchange.
  • Pro setups available at Boss Tone Central.

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  • Rated Power Output: 50W
  • Speaker: Custom Katana 12"


  • Input Jack: 1/4-Inch Phone Type
  • Power Amp In Jack: 1/4-Inch Phone Type
  • Line Out Jack: 1/4-Inch Phone Type
  • Rec Out/Phones Jack: Stereo 1/4-Inch Phone Type
  • EXP Pedal/CTL Ch1/Ch2 Jack: 1/4-Inch TRS Phone Type
  • GA-FC/CTL Solo Jack: 1/4-Inch TRS Phone Type
  • Aux In Jack: Stereo Miniature Phone Type
  • USB Port: USB B Type
  • AC In Jack

Weight & Dimensions

  • Dimensions: 470 (W) x 238 (D) x 398 (H) mm
  • Weight: 11.7 kg / 25 lbs 13 oz

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Elliot Stent author picture

Written by Elliot Stent

Customer Reviews


8 reviews





Mr John Low23rd Dec 2023

Value 5Looks 5Durability 5Sound 5

Mr iain reid3rd Dec 2023

All good. Absolutely no issues

Value 5Looks 5Durability 5Sound 5

Trusted Customer26th Oct 2023

Versatile amplifier, I only use it at home and this works perfectly.

Value 5Looks 5Durability 5Sound 5

Mr John Manclark22nd Apr 2023

Great value for money. My son has the MKII and it has been faultless. Perhaps a Tuner would have been good.

Value 5Looks 5Durability 5Sound 5

Mr Nick Ward9th Apr 2023

Value 5Looks 5Durability 5Sound 5

Sarah Berry19th Mar 2023

Awesome. Average happy customer.

Value 4Looks 5Durability 4Sound 5

David Emmerson4th Feb 2023

Value 5Looks 4Sound 5

Mr Rosario Leonardi1st Feb 2023

Value 5Looks 4Durability 5Sound 5

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At the end of the checkout you'll be taken to the V12 Finance web site. This is where your finance application is processed. Assuming your application is accepted you'll be able to place your deposit and confirm your order right there.

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Andertons Music Company's Registered Office: 58-59 Woodbridge Road, Guildford, GU1 4RF. Andertons Music Company acts as a credit broker and not a lender and only offers credit products from Secure Trust Bank PLC trading as V12 Retail Finance. Not all products offered by Secure Trust Bank PLC are regulated by the Financial Conduct Authority. Andertons Music Company is authorised and regulated by the Financial Conduct Authority, firm registration number 716155. Credit provided subject to age and status.