Boss Katana 100 MKII


This item runs exclusively on an operating voltage of 230 V and therefore requires a voltage transformer to run in your country of United States.

Electric Guitar Combo

  • Power: 100W
  • Equipped with 12" custom speakers
  • 5 Amp types: Clean, Crunch, Lead, Brown & Acoustic
  • 5 Independent effects: Booster, Mod, FX, Delay and Reverb - 3 of them simultaneously
  • 4 Memory slots for amplifiers and effects settings plus panel setting
  • Power Amp input for the use of multi-effect devices
  • Power Control (0.5 / 50/100 watts) for fully turned amp sound at any volume
  • Controls: Amp Type, Gain, Volume, Bass, Middle, Treble, Booster / Mod, Delay / FX, Reverb, Master & Power Control, Sounds
  • Updated Boss Tone Studio sound customisation software with over 60 different Boss effects, channel and global EQs, customisable routing, and more (free on
  • Dimensions (W x D x H): 530 x 248 x 484 mm
  • Weight: 14.8 kg
  • Suitable footswitch: Boss GA-FC Art.431181 (not included)
  • Suitable dust cover: Art.438090 (not included)
Available since October 2019
Item number 474878
Sales Unit 1 piece(s)
Power 100 W
Speaker 1x 12"
Memory slots 8
Reverb Yes
Effects Processor Yes
External FX Loop Yes
Line input Yes
Recording Output Yes
MIDI Interface No
Connection for External Speaker No
Headphone Output Yes
Footswitch connection Yes
incl. footswitch No
Weight in kg 14,8 kg
B-Stock from $272 available
The shipping costs are calculated on the checkout page.
In stock within 1-2 weeks
In stock within 1-2 weeks

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The total package in one compact combo

The second generation of Boss’s Katana amplifier series delivers outstanding tonal flexibility in both head and combo formats – proving once again that the iconic effect pedal manufacturer also knows how to make a great amp. In addition to its excellent basic sounds, the Boss Katana 100 MKII also boasts a range of onboard effects and an adjustable power stage output, so a rich-sounding tone is ensured at all times, and players can store their favourite settings to eight different memory patches (two banks of four each). All of this makes the Katana 100 MKII the ideal partner, whether you’re practising at home, rehearsing with a band, or performing on stage. And there is one thing that cannot be denied: This amp delivers the quality of sound that one would expect only at a much higher price point.

Boss Katana 100 MKII Electric Guitar Combo

Down to the last detail

The Boss Katana is a typical 100-watt, 1x12” combo amplifier, but it can do a lot more than can be expected from conventional amps. Luckily, the Katana’s wealth of features is easy to navigate using the top-mounted control panel or the Boss Tone Studio Editor (available free of charge from, a very practical tool which allows players to fine-tune their settings down to the last detail. And leaving aside the amplifier’s immense flexibility, the range of options available to shape its outstanding sounds to suit your individual taste also make it great for recording, which is made all the easier by its integrated USB output.

Controls on the Boss Katana 100 MKII Electric Guitar Combo

Perfect for beginners, that first band, and more

Until just a few years ago, getting your hands on an amp of this quality meant spending a lot more money. However, since the Katana 100 MKII gives players a truly sophisticated combo at a relatively budget-friendly price, it would also be inaccurate to refer to it as a “beginner’s amplifier”. Or to put it another way: Its price and format are perfect for taking your first steps on the guitar or in a band, but its quality goes far beyond that, making it equally interesting for experienced guitarists who are searching for an amp that sounds good even when playing quietly at home, are reluctant to spend more money than they have to, or simply wish to avoid having to get to grips with overly complicated technology.

Boss logo on the Katana 100 MKII Electric Guitar Combo

About Boss

The Boss brand has been an important part of the Japanese Roland Corporation since the mid-1970s and has caused a sensation from its inception, especially with its compact effect pedals but also multi-effect units and other helpful tools for guitarists. The company's single effect pedals in particular are legendary and can be found in almost every guitarist's home. An incredible 15 million have been sold to date. With its Katana series, the manufacturer now also offers excellent amplifiers at a very interesting price point.

Your personal custom amplifier

True, the Boss Katana 100 MKII can do a lot. But what it does best is to deliver exactly the sound you want, when you want it – precisely what guitarists need and desire. Hundreds of different options are of course nice to have (and the Katana 100 MKII offers a great many), but ultimately, the decisive factor is how easy the amp is to use, how precisely players can customise their sounds, and of course whether the end result sounds great. That is where the Boss Katana comes into its own: With fewer than 20 controls and knobs, it has everything guitarists need to find the perfect sounds to suit their guitar and their playing style – from crystal cleans to full-throttle drive sounds – in next to no time.

In the spotlight

251 Customer ratings

4.8 / 5

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159 Reviews

Great amp for beginners
anonym5 25.04.2021
I moved to the Katana after my starter pack of Fender Squier with the Frontman 15G. I was pretty happy with my Frontman, but I decided to try and expand my possibilities with the Katana.

Buying the Katana was a great decision that allowed me to evolve as a guitarist and learn about tones. I moved from the two channels (clean / overdrive) of my previous amp to all the different amp modes of the Katana (4 with variation + acoustic) and all the effects it includes. I think this is a great option for exploring possibilities and checking out how different pedals / effects sound for those who are not very familiar with tone crafting. At this point I have to say that the sheer number of possibilities can be daunting, but you can always start from the presets or third-party tones available in online communities.

- A lot of effects and amp modes with endless possibilities for different tones, which allow trying new sounds, especially useful for beginners.
- You can connect it to your computer for recording or to manage the tones through the GUI.
- 8 patches can be stored in memory, allowing to switch between different tones quickly without using the computer. For this, the switch pedal sold separately is great, allowing to switch while playing.
- The effects loop comes in quite handy for my looper pedal.
- The amp sounds great to my inexperienced ears.
- The power switch allows to play indoors without the neighbors having to call the police.

- With the huge number of possibilities it might be a daunting task fiddling around with all the options to find the tones you like. Also, the official tone patches were quite limited last time I checked, relying heavily on non-official communities.

Overall, I am really happy with my purchase and would never think about going back to my Frontman after this, I think it's great value for the money. I would recommend buying it with the switch pedal for changing channels while playing.


Versatile Amp
Cian M. 16.06.2021
Using the Boss Katana with a GA-FC and Expression pedal really opens up access to a variety of tones and effects from the amp.
I have not enjoyed the sound or experience of modelling amps until I tried this one. The tone is good, most of the effects seem to be near perfect emulations of the actual pedals.
The software to edit amp settings really allows for a wide tonal palette for your amp but can be a bit tricky to learn and set up (i spent the first 2 days just creating/editing tones & patches for the amp). But it is worth it.
The amp itself is also not the heaviest. It is a comfortable weight to be carried by the handle. (something I noted as a gigging musician)
The power adjustment (0.5W, 50W, 100W) is exremely useful going from apartment, to practice space, to the gig.
This is by far the most versatile jamming & gigging amp I have come across, but it is essential to have a footswitch (and expression pedal) to exploit the amps features.
As an added bonus the software allows you to assign quite a few footswitches and expression pedas to give you very detailed control of your sounds & patches from your feet.
It is definitely a great foundation for a customisable rig!


ridiculous value for money
rickross 07.08.2020
this amplifier is seriously worth every penny. I was reluctant to buy this as I love my fender Blues Junior and Vox ac 15, both being valve amps.
I thought I'd never appreciate a solid state amp but after hearing them at live shows and using my friends Katana i was blown away with the quality and sound and had to get one. Ive now had it for a little over a year, pre corona virus I have gigged with it and no complaints at all. Its the perfect home studio amp with its power control options you can set what wattage you need for your surroundings which is a vital feature for a home studio... I find the tone setting one of the most important features because you have 4 chanels where you can save the EQ, effects amd ampliefier settings to each chanel so when you come back to it its not lost if you found the perfect sound! so handy

I find the Pros of this amp are the four chanel selections that you can save for your own personal tones and sounds.

four different amp types all having a different variation and an additional acoustic amp which sounds absolutely brilliant

the ease of use


it would be nice if BOSS supplied a foot switch and a cover, other than that its a must have for any music enthusiast, session musician, home studio, gigging musician

Thomann as usual provided amazing efficient service and had the amp sent to me in very short time which was an added bonus


A great value for it's price
theFrantic 03.08.2023
I move to this amp after my starter amp, a little (and also great for what it is) NUX Mighty Air, and I'm very happy with the much it provides for my specific use cases.

I use it mainly for practice at home, for practice with friends and it is very versatile.

The power switch allows me to use it at home and until now none of my neighbours called the police, so it works as needed. If you need more power there you can do it.

If you do not use the app at all, it could provide nice tones using only the physical controls on the amp. But you can unleash all it's real power connecting the amp to your pc and using Boos Tone Studio to change the things as you wish, at least I'm very satisfied with all the functionality provided and for my noob ears it sounds fantastic.

Is heavier compared to the Katana 50 (that was the one that made me buy this bad boy), but the extra power provided, the support for 8 patches made me go for this one.

The only "negative" thing is that the official patches library is very limited, but this is not a big deal you can find many community sites with tons of patches.

The software can be overwhelming for noobs like me at start, but I encourage anyone to go mees with it as in my opinion, mess around things is the better way to learn and this unleash the full power of this great amp.


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