That product is currently unavailable. Please try a different product or contact us for help.
BOSS KTN-HEAD Portable Katana 100W Guitar Amplifier
BOSS KTN-HEAD Portable Katana 100W Guitar Amplifier

BOSS KTN-HEAD Portable Katana 100W Guitar Amplifier

BOSS KTN-HEAD Portable Katana 100W Guitar Amplifier
BOSS KTN-HEAD Portable Katana 100W Guitar Amplifier
$329.95
Checking for changes Product info up-to-date Product info updated We've detected that this product is out of stock. Enter your email below and we will notify you when it is available.
Buy Now, Pay Later
As low as $ / mo
- month term
- No impact on credit score
- Quick & easy checkout
- Legal stuff:
Promotional Offer
Estimations exclude tax, and assume no other Klarna balances. Non-promotional balances have a 19.99% APR and a $2 monthly minimum interest charge. Accounts are subject to credit approval, and issued by WebBank, member FDIC.

Free shipping on this product


Availability: Unavailable

Notify me when this is back in stock

Features

  • 100W Amplifier - Owner's Manual - Power Cord - GA-FC Sticker
  • Light and portable 100-watt amplifier head with powerful, gig-ready sound
  • Five unique amp characters: Clean, Crunch, Lead, Brown (derived from the Waza amp), and Acoustic (for acoustic-electric guitars)
  • Choose from 55 customizable effects with BOSS Tone Studio editor software
  • Store 15 different effects on board, with three effects available at once

Description

Crafted Tones, Forged For RockKatana-the traditional sword carried by the historic samurai of Japan-is a symbol of honor, precision, and artistry in Japanese culture. Adopting the majestic sword's name with pride, the Katana series presents guitar amplifiers with smooth, cutting tones honed by generations of dedication and expertise. Born of the development process behind the acclaimed Waza amplifier, these innovative amps embody BOSS's determined pursuit of the ultimate rock sound. Featuring proprietary circuit designs and meticulous tuning, the Katana series combines traditional craftsmanship and breakthrough functions to produce true next-generation rock amplifiers pact and powerful, the 100-watt Katana-Head delivers sharply defined rock tones with rich, commanding presence. The amp also includes integrated access to 55 BOSS effects, which are customizable using the free BOSS Tone Studio editor software. Up to 15 different effects can be loaded at one time, enabling you to build fully prepared sounds inside the amp. In addition, the versatile Katana-Head is equipped with an effects loop and MIDI for integration with advanced rigs, and features a convenient built-in monitor speaker for tone preview and practice without a cab. A Refined Amp with Inspiring ToneDesigned for guitarists who are serious about their sound, the Katana-Head offers class-defying power and expressiveness to meet any playing situation.


Item Weight 15.5 pounds


Product Dimensions 12.6 x 22.2 x 11.7 inches


Shipping Weight 25.3 pounds (View shipping rates and policies)


ASIN B01M179Y1P


Item model number KATANA-HEAD


Customer Reviews 4.4 out of 5 stars 34 ratings 4.4 out of 5 stars


Best Sellers Rank #18,967 in Musical Instruments (See Top 100 in Musical Instruments) #6,125 in Music Recording Equipment


Date first listed on Amazon September 22, 2016


Shipping

This product includes free shipping to all US addresses.


Delivery

Unless otherwise stated above, most products arrive within 2-3 business days. Larger items may take 6-9 business days. Tracking information will be automatically provided as soon as your order ships.


View our full shipping policy here.

Returns

This product can be returned within 30 days of delivery for a full refund. Please visit our returns center to begin a return.

View our full returns policy here.

Features

  • 100W Amplifier - Owner's Manual - Power Cord - GA-FC Sticker
  • Light and portable 100-watt amplifier head with powerful, gig-ready sound
  • Five unique amp characters: Clean, Crunch, Lead, Brown (derived from the Waza amp), and Acoustic (for acoustic-electric guitars)
  • Choose from 55 customizable effects with BOSS Tone Studio editor software
  • Store 15 different effects on board, with three effects available at once

Description

Crafted Tones, Forged For RockKatana-the traditional sword carried by the historic samurai of Japan-is a symbol of honor, precision, and artistry in Japanese culture. Adopting the majestic sword's name with pride, the Katana series presents guitar amplifiers with smooth, cutting tones honed by generations of dedication and expertise. Born of the development process behind the acclaimed Waza amplifier, these innovative amps embody BOSS's determined pursuit of the ultimate rock sound. Featuring proprietary circuit designs and meticulous tuning, the Katana series combines traditional craftsmanship and breakthrough functions to produce true next-generation rock amplifiers pact and powerful, the 100-watt Katana-Head delivers sharply defined rock tones with rich, commanding presence. The amp also includes integrated access to 55 BOSS effects, which are customizable using the free BOSS Tone Studio editor software. Up to 15 different effects can be loaded at one time, enabling you to build fully prepared sounds inside the amp. In addition, the versatile Katana-Head is equipped with an effects loop and MIDI for integration with advanced rigs, and features a convenient built-in monitor speaker for tone preview and practice without a cab. A Refined Amp with Inspiring ToneDesigned for guitarists who are serious about their sound, the Katana-Head offers class-defying power and expressiveness to meet any playing situation.


Item Weight 15.5 pounds


Product Dimensions 12.6 x 22.2 x 11.7 inches


Shipping Weight 25.3 pounds (View shipping rates and policies)


ASIN B01M179Y1P


Item model number KATANA-HEAD


Customer Reviews 4.4 out of 5 stars 34 ratings 4.4 out of 5 stars


Best Sellers Rank #18,967 in Musical Instruments (See Top 100 in Musical Instruments) #6,125 in Music Recording Equipment


Date first listed on Amazon September 22, 2016


Shipping

This product includes free shipping to all US addresses.


Delivery

Unless otherwise stated above, most products arrive within 2-3 business days. Larger items may take 6-9 business days. Tracking information will be automatically provided as soon as your order ships.


View our full shipping policy here.

Returns

This product can be returned within 30 days of delivery for a full refund. Please visit our returns center to begin a return.

View our full returns policy here.

Features

  • 100W Amplifier - Owner's Manual - Power Cord - GA-FC Sticker
  • Light and portable 100-watt amplifier head with powerful, gig-ready sound
  • Five unique amp characters: Clean, Crunch, Lead, Brown (derived from the Waza amp), and Acoustic (for acoustic-electric guitars)
  • Choose from 55 customizable effects with BOSS Tone Studio editor software
  • Store 15 different effects on board, with three effects available at once

Description

Crafted Tones, Forged For RockKatana-the traditional sword carried by the historic samurai of Japan-is a symbol of honor, precision, and artistry in Japanese culture. Adopting the majestic sword's name with pride, the Katana series presents guitar amplifiers with smooth, cutting tones honed by generations of dedication and expertise. Born of the development process behind the acclaimed Waza amplifier, these innovative amps embody BOSS's determined pursuit of the ultimate rock sound. Featuring proprietary circuit designs and meticulous tuning, the Katana series combines traditional craftsmanship and breakthrough functions to produce true next-generation rock amplifiers pact and powerful, the 100-watt Katana-Head delivers sharply defined rock tones with rich, commanding presence. The amp also includes integrated access to 55 BOSS effects, which are customizable using the free BOSS Tone Studio editor software. Up to 15 different effects can be loaded at one time, enabling you to build fully prepared sounds inside the amp. In addition, the versatile Katana-Head is equipped with an effects loop and MIDI for integration with advanced rigs, and features a convenient built-in monitor speaker for tone preview and practice without a cab. A Refined Amp with Inspiring ToneDesigned for guitarists who are serious about their sound, the Katana-Head offers class-defying power and expressiveness to meet any playing situation.


Item Weight 15.5 pounds


Product Dimensions 12.6 x 22.2 x 11.7 inches


Shipping Weight 25.3 pounds (View shipping rates and policies)


ASIN B01M179Y1P


Item model number KATANA-HEAD


Customer Reviews 4.4 out of 5 stars 34 ratings 4.4 out of 5 stars


Best Sellers Rank #18,967 in Musical Instruments (See Top 100 in Musical Instruments) #6,125 in Music Recording Equipment


Date first listed on Amazon September 22, 2016


abunda_amazon_reviews Absolutely an amazing value at the price point. This is mostly a first impression review as I've only had the amp a few days, but it *definitely* is a worthy replacement for the GX series that were beginning to fall behind the times. This amp represents a trend occurring in the last few years of modeling the preamp and output sections of tube amps separately - rather than attempting to having global amp models. The idea being to get those to behave in more "tubelike" fashion. Throw in the digital perk of being able to set those settings in easy to recall presets - and viola - an amp that has tweakable tubeish sounds and the (huge!) bonus of being able to store and recall several amp settings. For me, the reference on this idea was the Blackstar ID TVP amps. Sure, VOX (VTX) and others were also going down this path, but the Blackstar ID TVPs were purist in having a very tweakable output section modeled after several popular output tubes and a spectrum of preamp voices with adjustable gain. I have a Blackstar ID TVP 60 head - a 100% SS amp known for a very good tube sounds a large variety of preamp voices. It really does go quite far in matching up against all tube amps. The feel of the Katana is that it follows the same avenue and intended audience. I'm going to use the Blackstar ID TVP as the primary comparison. Both have an amazing tube sound and punch. Dynamics are there for both, a bit more for Katana. Both have preamp voices that are basically cleans - crunch - OD. The cleans for both are magnificent - slight edge for Katana - crystal clear yet warm. The crunch on the Katana really shines. To me - a weakness of the Blackstar. I've disabled the noise gate on it, but just doesn't have the dynamics and sustain of the Katana. The OD settings on both are very good. There are more options here for the Blackstar, and they are very good. Most metal types agree on this in general for Blackstars. Overall - in the preamp section the Katana is better. All of the voices are just great! Both have power attenuation for the output section. The Blackstar really shines here. The Katana just has 0.5, 50, 100 watt settings. The Blackstar has a knob sweep. That combined with a master volume (on both) that preserves the tone excellently. Great control of your output section. Additionally the Blackstar gives you output tube selections, and they all give subtle variations to meaningfully play with. It may sound like it's overwhelmingly in favor in the Blackstar here, but I don't feel the output section is as big of advantage as it may seem - as big a part of the overall sound adjustment. It's just that the Blackstar is *very* tweakable past what you can do on the Katana. The Katana really sounds excellent and again responds well to dynamics of your play. Compliments the preamp voices well. Both sound great in most aspects of tube amps expected. Where the Katana really stands out is the effects. Boss really came out with *the* idea that I think will make this a dominant seller. Configurable effects that can be swapped out and saved in the easy to recall presets that both amps have. If you like Boss effects, and I think they make among the best, you are getting a treat with this amp. You get quite a good approximation of them on this amp. I've not played with the software to swap about the plentfora of effects, but I can tell you that the plate and spring reverb are nice! Also the only chorus I've come to really like - it's here. Can't wait to play with the software. Blackstar only has it's builtin effects. They are workman worthy and also stored in their presets, but fall way short of what you get - and can get more of - on the Katana. Really like this novel feature. It does however, put more focus on a shortcoming of the Katana. Only 4 presets, vs 12 on the Blackstar (actually 128 with software and the footswitch). Still, I think this amp raises the bar on amps - serves notice to the other amp makers. What you are getting for the price makes it really hard to complain. And it sounds great. Even the little 5" speaker is not bad. Boss really did their homework! Quick update 4/21/2016: Still marveling at the value this is for the $$$. Reverses what used to be typical of solid state. A couple of good sounds/settings - the rest being junk. This is the total opposite - find it hard to find something that sounds bad. Does the best job of anything I've ever played at covering a lot of territory, and covering it *well*. I can't see how any typical needs guitarist would be disappointed in this amp. I will try to update this again after observing the software side of working with this amp. So far it has been pretty dismal with trying to establish an environment on a windows 10 pc and updating the firmware. Really cryptic and couldn't get it going. Boss/Roland needs to address this aspect of the Katana's usability...;;Reviewed in the United States on March 20, 2017;;5.0 out of 5 stars;;Now I'm a believer...;;Bret;;/gp/customer-reviews/R19OWZRISGKLGU/ref=cm_cr_dp_d_rvw_ttl?ie=UTF8&ASIN=B01M179Y1P;;;when i was in high school i was one of those that got a large line6 spider ii 2x10 (not even the 2x12) amp when those went on clearance. so given that was the baseline i had in high school, and then like a 10 year gap where i didn't get to play at all, to hear this thing with its different models, even if you don't consider it modeling because it's not traditional digital modeling, these things have come a long way. And for $350 brand new, that's a steal. I'm just a bedroom player so as far as I'm concerned, the tones are great for the money (putting aside for now the used market, which always throws a wrench in value calculations). I'd still kill for a real tube 5150III but I just play in my garage so this amp, with a 2x12" laney cub cab, is just perfect to whisk me away to guitar playing land for awhile. The little 5" speaker built into it is real nice if i just want a practice amp level of sound. I really like the "5150" lead amp on this thing, it's the one i use the most. I have yet to play with the sneaky amps or even the built in boss things, but I do have the foot controller so i'm looking forward to continuing to mess with the katana for awhile.;;Reviewed in the United States on April 26, 2018;;5.0 out of 5 stars;;really good deal for the money, cheap amps have come a long way;;Joshua Y. Yuan;;/gp/customer-reviews/R16H7EYEG00PVX/ref=cm_cr_dp_d_rvw_ttl?ie=UTF8&ASIN=B01M179Y1P;;;I went with the 100W head over the Katana 50, not because of it's higher power level and cab ability but due to the internal 5" speaker which is enough for 99.999% of people. If you play at home and not with a band, this is more than you need and it can be dialed in to sound exceptional at any volume. Software updates have improved it even more and you can use free software to make changes to it's setup, as well as find "profiles" or configuration files online from others who have dialed in many great sounds. I sold a $2000 boutique amp because I preferred the experience of playing this. The Boss Katana does nearly everything you'd ever want from an amp and certainly everything most need. The head lets you connect to a cabinet if you need bigger volume to play with a band, so I felt it was the most versatile but the 50 is great as well. This is a real gift to the musicians of the world from Boss and anyone who can save up for one of these can use one, knowing they're not missing much over any higher end amps.;;Reviewed in the United States on January 18, 2019;;5.0 out of 5 stars;;One of the best guitar related products of the last 40 years;;Good Bye 123456789;;/gp/customer-reviews/RCOVHRZ6DSGVK/ref=cm_cr_dp_d_rvw_ttl?ie=UTF8&ASIN=B01M179Y1P;;;I'm with the original reviewer. I had the 50w 1x12 combo and was so blown away by the sound, bought the head for the added power / features. A truly remarkable amp not only for the price - but in general. I wouldn't hesitate to recommend - and I've had hot-rodded Marshalls, Boogies, etc.;;Reviewed in the United States on May 19, 2017;;5.0 out of 5 stars;;Extremely good amp;;McDaniel Photo;;/gp/customer-reviews/R1AHGB55K9H0I7/ref=cm_cr_dp_d_rvw_ttl?ie=UTF8&ASIN=B01M179Y1P;;;Yes, it's loud (when used with an external cab or speaker), and no, it doesn't sound like a crappy digital/modeling amp. And although so-called "tone purists" will still say that tubes are forever top dog in the amp world (full disclosure: I have a tube amp and love it), tubes aren't always practical or reliable. And unless you run some sort of attenuator, you're never going to hear your tubes pushed at full volume anyway. This head is extremely versatile, and I can get a huge range of sounds from, thanks to the Boss Tone Central software. I use this to drive a 16 ohm Peavey 2x12 cabinet, and it pushes a lot of air. The onboard effects are pretty cool, but I've had the best results from getting a good baseline tone with the head and augmenting it with actual effects pedals. I'm incredibly stingy with my gear purchases, and I don't regret getting this amp. My only quarrel is that I'm getting a bit more noise with high gain sounds than I'd like. But there's an onboard NS-2 (noise suppressor) that can be activated with the software, and I have an old-school noise gate on my pedal board, so that helps. It's also possible that there are elements of the tone software that I haven't fully explored to help reduce noise since the patches I've downloaded from Boss and elsewhere have much less noise.;;Reviewed in the United States on June 17, 2019;;4.0 out of 5 stars;;This is a super versatile, loud, jack-of-all trades amp;;Carter Davis;;/gp/customer-reviews/R4EM0ESVPA94W/ref=cm_cr_dp_d_rvw_ttl?ie=UTF8&ASIN=B01M179Y1P

Shipping

This product includes free shipping to all US addresses.


Delivery

Orders placed now will arrive in 6-9 business days. Tracking information will be automatically provided as soon as your order ships.


View our full shipping policy here.

Returns

This product can be returned within 30 days of delivery for a full refund. Please visit our returns center to begin a return.

View our full returns policy here.

Top Amazon Reviews


5.0 out of 5 stars
By Bret - Reviewed in the United States on March 20, 2017
Now I'm a believer...
Absolutely an amazing value at the price point. This is mostly a first impression review as I've only had the amp a few days, but it *definitely* is a worthy replacement for the GX series that were beginning to fall behind the times. This amp represents a trend occurring in the last few years of modeling the preamp and output sections of tube amps separately - rather than attempting to having global amp models. The idea being to get those to behave in more "tubelike" fashion. Throw in the digital perk of being able to set those settings in easy to recall presets - and viola - an amp that has tweakable tubeish sounds and the (huge!) bonus of being able to store and recall several amp settings. For me, the reference on this idea was the Blackstar ID TVP amps. Sure, VOX (VTX) and others were also going down this path, but the Blackstar ID TVPs were purist in having a very tweakable output section modeled after several popular output tubes and a spectrum of preamp voices with adjustable gain. I have a Blackstar ID TVP 60 head - a 100% SS amp known for a very good tube sounds a large variety of preamp voices. It really does go quite far in matching up against all tube amps. The feel of the Katana is that it follows the same avenue and intended audience. I'm going to use the Blackstar ID TVP as the primary comparison. Both have an amazing tube sound and punch. Dynamics are there for both, a bit more for Katana. Both have preamp voices that are basically cleans - crunch - OD. The cleans for both are magnificent - slight edge for Katana - crystal clear yet warm. The crunch on the Katana really shines. To me - a weakness of the Blackstar. I've disabled the noise gate on it, but just doesn't have the dynamics and sustain of the Katana. The OD settings on both are very good. There are more options here for the Blackstar, and they are very good. Most metal types agree on this in general for Blackstars. Overall - in the preamp section the Katana is better. All of the voices are just great! Both have power attenuation for the output section. The Blackstar really shines here. The Katana just has 0.5, 50, 100 watt settings. The Blackstar has a knob sweep. That combined with a master volume (on both) that preserves the tone excellently. Great control of your output section. Additionally the Blackstar gives you output tube selections, and they all give subtle variations to meaningfully play with. It may sound like it's overwhelmingly in favor in the Blackstar here, but I don't feel the output section is as big of advantage as it may seem - as big a part of the overall sound adjustment. It's just that the Blackstar is *very* tweakable past what you can do on the Katana. The Katana really sounds excellent and again responds well to dynamics of your play. Compliments the preamp voices well. Both sound great in most aspects of tube amps expected. Where the Katana really stands out is the effects. Boss really came out with *the* idea that I think will make this a dominant seller. Configurable effects that can be swapped out and saved in the easy to recall presets that both amps have. If you like Boss effects, and I think they make among the best, you are getting a treat with this amp. You get quite a good approximation of them on this amp. I've not played with the software to swap about the plentfora of effects, but I can tell you that the plate and spring reverb are nice! Also the only chorus I've come to really like - it's here. Can't wait to play with the software. Blackstar only has it's builtin effects. They are workman worthy and also stored in their presets, but fall way short of what you get - and can get more of - on the Katana. Really like this novel feature. It does however, put more focus on a shortcoming of the Katana. Only 4 presets, vs 12 on the Blackstar (actually 128 with software and the footswitch). Still, I think this amp raises the bar on amps - serves notice to the other amp makers. What you are getting for the price makes it really hard to complain. And it sounds great. Even the little 5" speaker is not bad. Boss really did their homework! Quick update 4/21/2016: Still marveling at the value this is for the $$$. Reverses what used to be typical of solid state. A couple of good sounds/settings - the rest being junk. This is the total opposite - find it hard to find something that sounds bad. Does the best job of anything I've ever played at covering a lot of territory, and covering it *well*. I can't see how any typical needs guitarist would be disappointed in this amp. I will try to update this again after observing the software side of working with this amp. So far it has been pretty dismal with trying to establish an environment on a windows 10 pc and updating the firmware. Really cryptic and couldn't get it going. Boss/Roland needs to address this aspect of the Katana's usability...

5.0 out of 5 stars
By Joshua Y. Yuan - Reviewed in the United States on April 26, 2018
really good deal for the money, cheap amps have come a long way
when i was in high school i was one of those that got a large line6 spider ii 2x10 (not even the 2x12) amp when those went on clearance. so given that was the baseline i had in high school, and then like a 10 year gap where i didn't get to play at all, to hear this thing with its different models, even if you don't consider it modeling because it's not traditional digital modeling, these things have come a long way. And for $350 brand new, that's a steal. I'm just a bedroom player so as far as I'm concerned, the tones are great for the money (putting aside for now the used market, which always throws a wrench in value calculations). I'd still kill for a real tube 5150III but I just play in my garage so this amp, with a 2x12" laney cub cab, is just perfect to whisk me away to guitar playing land for awhile. The little 5" speaker built into it is real nice if i just want a practice amp level of sound. I really like the "5150" lead amp on this thing, it's the one i use the most. I have yet to play with the sneaky amps or even the built in boss things, but I do have the foot controller so i'm looking forward to continuing to mess with the katana for awhile.

5.0 out of 5 stars
By Good Bye 123456789 - Reviewed in the United States on January 18, 2019
One of the best guitar related products of the last 40 years
I went with the 100W head over the Katana 50, not because of it's higher power level and cab ability but due to the internal 5" speaker which is enough for 99.999% of people. If you play at home and not with a band, this is more than you need and it can be dialed in to sound exceptional at any volume. Software updates have improved it even more and you can use free software to make changes to it's setup, as well as find "profiles" or configuration files online from others who have dialed in many great sounds. I sold a $2000 boutique amp because I preferred the experience of playing this. The Boss Katana does nearly everything you'd ever want from an amp and certainly everything most need. The head lets you connect to a cabinet if you need bigger volume to play with a band, so I felt it was the most versatile but the 50 is great as well. This is a real gift to the musicians of the world from Boss and anyone who can save up for one of these can use one, knowing they're not missing much over any higher end amps.

5.0 out of 5 stars
By McDaniel Photo - Reviewed in the United States on May 19, 2017
Extremely good amp
I'm with the original reviewer. I had the 50w 1x12 combo and was so blown away by the sound, bought the head for the added power / features. A truly remarkable amp not only for the price - but in general. I wouldn't hesitate to recommend - and I've had hot-rodded Marshalls, Boogies, etc.

4.0 out of 5 stars
By Carter Davis - Reviewed in the United States on June 17, 2019
This is a super versatile, loud, jack-of-all trades amp
Yes, it's loud (when used with an external cab or speaker), and no, it doesn't sound like a crappy digital/modeling amp. And although so-called "tone purists" will still say that tubes are forever top dog in the amp world (full disclosure: I have a tube amp and love it), tubes aren't always practical or reliable. And unless you run some sort of attenuator, you're never going to hear your tubes pushed at full volume anyway. This head is extremely versatile, and I can get a huge range of sounds from, thanks to the Boss Tone Central software. I use this to drive a 16 ohm Peavey 2x12 cabinet, and it pushes a lot of air. The onboard effects are pretty cool, but I've had the best results from getting a good baseline tone with the head and augmenting it with actual effects pedals. I'm incredibly stingy with my gear purchases, and I don't regret getting this amp. My only quarrel is that I'm getting a bit more noise with high gain sounds than I'd like. But there's an onboard NS-2 (noise suppressor) that can be activated with the software, and I have an old-school noise gate on my pedal board, so that helps. It's also possible that there are elements of the tone software that I haven't fully explored to help reduce noise since the patches I've downloaded from Boss and elsewhere have much less noise.

Recent Reviews


5.0 out of 5 stars
By Bret - Reviewed in the United States on March 20, 2017
Now I'm a believer...
Absolutely an amazing value at the price point. This is mostly a first impression review as I've only had the amp a few days, but it *definitely* is a worthy replacement for the GX series that were beginning to fall behind the times. This amp represents a trend occurring in the last few years of modeling the preamp and output sections of tube amps separately - rather than attempting to having global amp models. The idea being to get those to behave in more "tubelike" fashion. Throw in the digital perk of being able to set those settings in easy to recall presets - and viola - an amp that has tweakable tubeish sounds and the (huge!) bonus of being able to store and recall several amp settings. For me, the reference on this idea was the Blackstar ID TVP amps. Sure, VOX (VTX) and others were also going down this path, but the Blackstar ID TVPs were purist in having a very tweakable output section modeled after several popular output tubes and a spectrum of preamp voices with adjustable gain. I have a Blackstar ID TVP 60 head - a 100% SS amp known for a very good tube sounds a large variety of preamp voices. It really does go quite far in matching up against all tube amps. The feel of the Katana is that it follows the same avenue and intended audience. I'm going to use the Blackstar ID TVP as the primary comparison. Both have an amazing tube sound and punch. Dynamics are there for both, a bit more for Katana. Both have preamp voices that are basically cleans - crunch - OD. The cleans for both are magnificent - slight edge for Katana - crystal clear yet warm. The crunch on the Katana really shines. To me - a weakness of the Blackstar. I've disabled the noise gate on it, but just doesn't have the dynamics and sustain of the Katana. The OD settings on both are very good. There are more options here for the Blackstar, and they are very good. Most metal types agree on this in general for Blackstars. Overall - in the preamp section the Katana is better. All of the voices are just great! Both have power attenuation for the output section. The Blackstar really shines here. The Katana just has 0.5, 50, 100 watt settings. The Blackstar has a knob sweep. That combined with a master volume (on both) that preserves the tone excellently. Great control of your output section. Additionally the Blackstar gives you output tube selections, and they all give subtle variations to meaningfully play with. It may sound like it's overwhelmingly in favor in the Blackstar here, but I don't feel the output section is as big of advantage as it may seem - as big a part of the overall sound adjustment. It's just that the Blackstar is *very* tweakable past what you can do on the Katana. The Katana really sounds excellent and again responds well to dynamics of your play. Compliments the preamp voices well. Both sound great in most aspects of tube amps expected. Where the Katana really stands out is the effects. Boss really came out with *the* idea that I think will make this a dominant seller. Configurable effects that can be swapped out and saved in the easy to recall presets that both amps have. If you like Boss effects, and I think they make among the best, you are getting a treat with this amp. You get quite a good approximation of them on this amp. I've not played with the software to swap about the plentfora of effects, but I can tell you that the plate and spring reverb are nice! Also the only chorus I've come to really like - it's here. Can't wait to play with the software. Blackstar only has it's builtin effects. They are workman worthy and also stored in their presets, but fall way short of what you get - and can get more of - on the Katana. Really like this novel feature. It does however, put more focus on a shortcoming of the Katana. Only 4 presets, vs 12 on the Blackstar (actually 128 with software and the footswitch). Still, I think this amp raises the bar on amps - serves notice to the other amp makers. What you are getting for the price makes it really hard to complain. And it sounds great. Even the little 5" speaker is not bad. Boss really did their homework! Quick update 4/21/2016: Still marveling at the value this is for the $$$. Reverses what used to be typical of solid state. A couple of good sounds/settings - the rest being junk. This is the total opposite - find it hard to find something that sounds bad. Does the best job of anything I've ever played at covering a lot of territory, and covering it *well*. I can't see how any typical needs guitarist would be disappointed in this amp. I will try to update this again after observing the software side of working with this amp. So far it has been pretty dismal with trying to establish an environment on a windows 10 pc and updating the firmware. Really cryptic and couldn't get it going. Boss/Roland needs to address this aspect of the Katana's usability...

5.0 out of 5 stars
By Joshua Y. Yuan - Reviewed in the United States on April 26, 2018
really good deal for the money, cheap amps have come a long way
when i was in high school i was one of those that got a large line6 spider ii 2x10 (not even the 2x12) amp when those went on clearance. so given that was the baseline i had in high school, and then like a 10 year gap where i didn't get to play at all, to hear this thing with its different models, even if you don't consider it modeling because it's not traditional digital modeling, these things have come a long way. And for $350 brand new, that's a steal. I'm just a bedroom player so as far as I'm concerned, the tones are great for the money (putting aside for now the used market, which always throws a wrench in value calculations). I'd still kill for a real tube 5150III but I just play in my garage so this amp, with a 2x12" laney cub cab, is just perfect to whisk me away to guitar playing land for awhile. The little 5" speaker built into it is real nice if i just want a practice amp level of sound. I really like the "5150" lead amp on this thing, it's the one i use the most. I have yet to play with the sneaky amps or even the built in boss things, but I do have the foot controller so i'm looking forward to continuing to mess with the katana for awhile.

5.0 out of 5 stars
By Good Bye 123456789 - Reviewed in the United States on January 18, 2019
One of the best guitar related products of the last 40 years
I went with the 100W head over the Katana 50, not because of it's higher power level and cab ability but due to the internal 5" speaker which is enough for 99.999% of people. If you play at home and not with a band, this is more than you need and it can be dialed in to sound exceptional at any volume. Software updates have improved it even more and you can use free software to make changes to it's setup, as well as find "profiles" or configuration files online from others who have dialed in many great sounds. I sold a $2000 boutique amp because I preferred the experience of playing this. The Boss Katana does nearly everything you'd ever want from an amp and certainly everything most need. The head lets you connect to a cabinet if you need bigger volume to play with a band, so I felt it was the most versatile but the 50 is great as well. This is a real gift to the musicians of the world from Boss and anyone who can save up for one of these can use one, knowing they're not missing much over any higher end amps.

5.0 out of 5 stars
By McDaniel Photo - Reviewed in the United States on May 19, 2017
Extremely good amp
I'm with the original reviewer. I had the 50w 1x12 combo and was so blown away by the sound, bought the head for the added power / features. A truly remarkable amp not only for the price - but in general. I wouldn't hesitate to recommend - and I've had hot-rodded Marshalls, Boogies, etc.

4.0 out of 5 stars
By Carter Davis - Reviewed in the United States on June 17, 2019
This is a super versatile, loud, jack-of-all trades amp
Yes, it's loud (when used with an external cab or speaker), and no, it doesn't sound like a crappy digital/modeling amp. And although so-called "tone purists" will still say that tubes are forever top dog in the amp world (full disclosure: I have a tube amp and love it), tubes aren't always practical or reliable. And unless you run some sort of attenuator, you're never going to hear your tubes pushed at full volume anyway. This head is extremely versatile, and I can get a huge range of sounds from, thanks to the Boss Tone Central software. I use this to drive a 16 ohm Peavey 2x12 cabinet, and it pushes a lot of air. The onboard effects are pretty cool, but I've had the best results from getting a good baseline tone with the head and augmenting it with actual effects pedals. I'm incredibly stingy with my gear purchases, and I don't regret getting this amp. My only quarrel is that I'm getting a bit more noise with high gain sounds than I'd like. But there's an onboard NS-2 (noise suppressor) that can be activated with the software, and I have an old-school noise gate on my pedal board, so that helps. It's also possible that there are elements of the tone software that I haven't fully explored to help reduce noise since the patches I've downloaded from Boss and elsewhere have much less noise.