Amplifier Classes Explained | Boss Katana Artist
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- Опубликовано: 29 сен 2024
- Understanding amplifier classes can be confusing. What is the difference between 'Class A' and 'Class AB'? What's going on with 'Class D'?
Wonder no longer, using the Boss Katana Artist as an example we delve into the world of amplifier classes.
Boss Katana Artist:
www.boss.info/...
#boss #katana #artist
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![Cody Johnson - I'm Gonna Love You (with Carrie Underwood) [Official Music Video]](http://i.ytimg.com/vi/yy9PuYMU29g/mqdefault.jpg)
Congrats on new camera fam
Thank you, but how did you know I got a new camera?
This is why your channel is one of my favorite. Love these in depth explanations
Nailed it. The best katana video out there by far
3:08 The "class B" depicted here seems more like the unbiased version which, yes, will have major levels of crossover distortion. Douglas Self, on the other hand, classifies class B as the optimally-biased push-pull output stage, with class AB being a class B with a pointlessly high idle bias, which (ironically enough) actually leads to *higher* distortion than the optimal bias. Plus the associated extra heat waste.
Great explanation man! And great video there! And nice playing aswell! Keep doing it! =)
Love that slipknot
Great video
I love ins and outs you give in all of you videos 🤘
My 2nd go to channel for gear reviews
Has anyone mounted their Katana into a traditional Marshall-style head or combo cabinet? By removing a few screws, the entire Katana module slides out from the stock cabinet, almost like a rackmount processor. Any customs boxes out there?
*Smacks table* THANK YOU! o.o
Stupid question dough: Why didn't your sound get clean after the shower? Explain this in a seperate video please! ò.ó \m/
Well, that is an easy explanation, the signal was still... _wet_ .
It got wet! Lol!! Thanks for the laugh! I needed that shit
made my day
@@d1oftwins Bwaahahah, excellent mate
Finally someone explained this in a way I can understand.
Colin. Your channel is criminally unrecognized and unsubbed. Love the channel
Iron Wall so true. His videos are hands down some of the best on YT. DylanTalksTone is also severely underrated. He deserves waaaay more subs
Anthony Sclafani while I do like to watch some of Dylan’s videos, he often seems like a salesman who wants to promote his products. I can’t help but think he’s really arrogant sometimes..
Colin however is the opposite, it seems like all he wants to do is educate us about stuff we don’t know in the most polite, helpful and funny way.
I do like Colins videos a lot and think he really should get more attention!
Wow, once again tons of expert knowledge condensed into understandable language. Good on ya, man.
Guys, I think Collin likes dinosaurs
Dinosaurs are life
CSGuitars I've got bad news for you, man...
@@ScienceofLoud Dinosaur Life
Ya because dinosaur's Rule!!!
hunt the dinosaur
Seck reffs
and TEIM
Class EB powerstage
fockin roite
T-SHIRT DESIGN!
NOWWWWWW!
I think we're all expecting more shower scenes in the future.
Dake Townsend of course
11:44 WE ALL GOT LEFT BEHIND
Reminds me of that video where Stephen Hawking explains quantum mechanics then gets into the bath. Haha, nice one mate.
Thats because quantum mechanics is trash, and Amps use real physics not computer simulations of simulations to cook up figures.
This guys videos are literally the only ones that make sense to me... the best instructional videos on RUclips.
Never heard of the classes of amplifiers but your vid brought the big picture and all the details I need. The visualization is really good for understanding! Also your Tiramisu Explorer really looks cool! This is the promoted video that I would click to watch!
Oh btw Colin, where's the riff in 11:09 from? Thanks!
Scorpions - Rock You Like A Hurricane
Finally someone who puts that there's a product placement!!!
Not like all the other youtubers who are "demoing the latest Ernie Ball stuff"!!!
Gosh! THANK YOU FOR YOUR HONESTY and this great explanation video!!! 😉👍
To be very fair to Boss, they didn't want a normal product review. They just wanted to be used as an example in a technology explanation video like this.
I chose the topic and equipment and had free reign to say whatever I wanted and fortunately the Katana Artist is very good.
If companies make good product honesty is nothing to be scared of.
The fact that Boss even want to work with me considering the shade I've thrown at the original Metal Zone in the past should speak volumes about how supportive they are to honest content.
It's a brilliant marketing move by Boss - what's the use of having a unique advantage in your amp if the drooling guitar player won't understand it?
On the whole Metal Zone thing, I cannot imagine any long-standing company to be so much out of touch to miss a product of theirs has achieved meme status. Come on, there's a That Pedal Show episode where they wear surgical masks to handle one.
@@ScienceofLoud Hey have you used a standard Katana (40 Watt version would be preferable)? If so I'd like your opinion on it
Finally, someone was able to explain amp classes to me! I totally get it now, thank you!
I'm so glad to have discovered your channel: you're a thorough, engaging teacher, with great playing to boot. I've tiptoed around this topic for years -- ever since a Guitar Center sales rep looked starry-eyed when he described an amp option as "Class A" -- and this is by far the clearest, most helpful overview I've seen.
You read my mind. I was researching about this topic lately and many explanations are confusing. Your video is amazing, very well explained and in an accessible way. Thank you for that!
I was literally going to search this topic before my RUclips binge but changed my mind - this was my first recommended video when I went to YT. Spooky....
I love the visualization, especially the one that constantly stays on the right side of the video.
When I heard the Slipknot, and Lamb Of God riffs, I was like FUCK YES THIS IS AMAZING but then I realized it's still a solid state 😂😂😂
I just learned everything about amps classes... I didn't even knew there were classes...
I love your explanations and reviews; your videos are the ones I look forward to the most when it comes to guitar!
Nam Tăng Thought Kurzgesagt was a fan for a moment.
"DEM TONES, BRAH!" Hahahaha love this channel, always so informative & entertaining. Keep 'em coming, Colin!
You explain things way better than other musicians. I love your videos. I also have had the regular boss katana 100 for a year and love it. Have yet to try the artist out.
I have the Katana Artist...love it! The thing is LOUD. I know about amp classification from the car audio world. Car stereo amps are rated the same. Class D was always reserved for powering bass subwoofers. If you look at all the latest bass guitar amps on the market now, you'll see a trend of super small heads with crazy power (like 800 watts). That's class D power.
Erik Stone How come class D power means less volume than class A if D has higher efficiency than A?
When talking about efficiency, there is always a "compromise". If you put a high efficiency shower head on your shower, does it flow more or less water? Same concept here.
Erik Stone If both showers take water from the plumbing at the same rate, the one with the higher efficiency makes my head wetter.
Totally spot on. I've got a 250 watt Carvin bass head that could fit in my gig bag. Sounds great and has more than enough power on tap for whatever I need. I'll never lug a a giant bass amp to a gig ever again.
mkaali both showers do not take the water at the same rate. The water hits the shower heads at the same rate, but the efficient head creates a bottleneck that helps conserve water (which is what makes it efficient). So with the amp, as you heard in this video...class A is a full stream of power with very little bottleneck. This is why it sounds pure. The downside is that it creates a lot of heat, so it looses energy in that heat (ie: non-efficient). Class D processes power completely different since that power is "filtered". You may loose sound quality and volume due to the filtration, but what you get in return is a cooler running amp that doesn't need large heat sinks and air moving around it to cool it down. It's a trade off. Maybe someday we'll have a new class of amp that has the best of both worlds.
Dude it's crazy, I was genuinely just wondering about that. And I couldn't think of anyone better to explain it. You're explanations are so clear and easy to understand :)
Also having been a subscriber for quite a while I definitely noticed your playing has improved!!! Good work man, your rhythm was much tighter and overall cleaner, and your lead lines were very nice too. Also your recording has improved as well.
Essentially, great work man :) I noticed a big improvement
That old 10,000 hours thing. I can only get better with practice. Thank you for your support.
Thanks for explaining the different amp classes in a way that is both informative and entertaining. You sir, are both a scholar and a gentleman!
Stay tuned to the end of the video for a demonstration of the effects of Class A drugs! ;)
But in all seriousness, you got a sub from me. :)
"Distortion is usually the Achilles heel of solid-state amps."
Interesting. So you and Glenn Fricker both think that the hardest thing for a SS amp to produce is good distorted tones.
I record with an older man who does a ton of jazz, and he thinks the hardest thing for a solid-state amp to make are clean tones that are crystal-clean but have that *feel* and interesting tone that only tubes/valves can make, and he thinks SS amps (which a lot of jazz guys use because SS amps are cleaner and cheaper, so the jazz guy can spend more money on heroin) are sterile and boring. He uses a Fender TR set super clean.
I used to record with a guy who is in a blues band, and he never uses an SS amp because to him, no solid state amp can make a decent edge-of-breakup overdrive. He thinks a good overdrive is the hardest thing for an amp to do, and likes an old Fender Tweed with the gain up, being pushed by a TS808.
I guess I am a British rock guy (I'm a Yank, but I am a diehard Vox fanboy) and I got an all-valve Vox clone because I like that nasty, fuzzy, EL34/EL84 edge-of-breakup tone that only valves can do. To me, a Vox tone is the hardest thing for an SS amp to make.
I guess my question is: is it all because that's the type of music we like and play? Is it because we listen to that type the most so we know what to listen to?
From my personal experience, there is no crystal clear clean tone as good as the ones made by transistors. Tubes tend to deliver a mid hump everytime. Some people perefer it, but it is no high fidelity at all.
But here's the thing: For this kind of music, and these types of tones, it kinda doesn't matter WTF you play through.
Now, I do have a question: in what way could the wireless system affect the tone, if at all? Generally these systems do have a loss of quality, so if this is case (a big if) could this render the better amplification useless? I also understand that it may have just been for video recording, but I am curious if there would be a noticeable loss of signal otherwise.
Understanding amplifier classes can be confusing. What is the difference between 'Class A' and 'Class AB'? What's going on with 'Class D'?
Wonder no longer, using the Boss Katana Artist as an example we delve into the world of amplifier classes.
Boss Katana Artist:
www.boss.info/global/products/katana-artist/
this Scottish accent sounds much comfortable after viewing decades of clips from this channel. good vid, thanks.
11:27 is that Parkway Drive I hear?
This is the best video I’ve seen in a fucking while. Got educated with precise and understandable information explaining shit every guitar player needs to know, and then got to listen a killer tune. Love you Colin.
12:03 THIS IS A MOTHERFUCKING INVITATIONNNN!!!!
I've got a Boss Katana 50 and it is my favorite thing in the world. I only really play guitar in my home so dropping the output wattage with the flip of a switch while still keeping things sounding good is awesome. And that amp SOUNDS. GOOD. Even if I had an excellent 1W valve amp I'd still need a bunch of a pedals to get the sounds I'm after. The Katana has many effects built in so I don't have to journey very far. Its not the ultimate amp, but its all one really needs if they are after a simple, affordable, practice amp.
Always surprises me to see heshers from the UK. Always feel like that's a US thing, but then Sweden goes and proves me wrong, so any country can spawn heshers. This didn't occur to me until the fan starting blowing his hair, cause he' clearly a bright lad who drinks herbal tea.
I have a Behringer Ultrabass BXD3000h. While the price tag was perfect for a bass head, the functionality has me worried. When jamming, it sometimes cuts out briefly. It's happened at home and in the practice spot. I'm guessing this has something to do with varying power draw but I'm not sure. Any help would be appreciated as I like this amp head and can't really afford anything better just yet.
did you check the jack? It might just need to be soldered, in either the amp jack, or the the guitar jack (or the patch cord)
Mat Coddy It's pretty new and all my guitars are in top condition. It will cut out then back in and work from then on. I'm guessing it's more power related.
wykydrone Older Behringer amps in general have this problem. I don’t know how many times I’ve had to switch a Behringer amp off and back on to get it to work again. No answer as to exactly what is the exact culprit, if it’s down to using component/components that aren’t right for the job or if it’s that the designs are poorly engineered on paper by people that actually don’t know what they are doing. I just have never taken the time to troubleshoot the problem as I’ve never owned any of the products, they were only what was provided by others that hired me to run them. That said, this has improved in recent years, however it still happens in newer products, but less frequently or just is taking longer to develop. This also does seem to happen faster in environments where the power available isn’t very stable.
It's the newest model available (for the time) but I played it on Saturday on the first channel running an amp sim and no issues. I'm guessing now it has something to do with the second channel. I've been doing some research to see if others have had that problem just on the second channel but so far nothing.
thumbs up for including them Parkway Drive and Slipknot riffs
And lamb of god
Parkway Drive and Lamb of God? You've made some great riff choices here Colin!
The content in this channel is amazing
Colin .... simply amazing ! Your playing and song composition is absolutely world class my brother ! Add to this your knowledge , intelligence and absolute pro way of explaining technical aspects ... awesome . Great work . Awesomely interesting and very informative videos all done in a superb professional manner and top quality . Sub and like ... who could resist or deny ?
Put that next to a mesa dual and it'll fail miserably ;)! €600 vs €3000!
The Katana Artist is still a cool amp though. Can definitely compete with tube amps around €1000. There is still a huge debate whether it performs well on stage though. I rarely see endorsers commenting on that. Seems to be more a "home use" and "studio" amp. Would be cool to hear some thoughts on that. Cheers.
This makes a lot more sense now. That explains why SS amps always have the PWM wattage, as well as part of the reason that tubes feel different. Thank you for this video!
Such a wet tone!
Sponsored by Palmolive, right?
Hey man! I’m playing for almost 3 years now and learned a lot from your video today. Thanks for the work and tutoring.. Frank
So, this is actually a Katana promo, thinly disguised as an informative piece on amplifier classes. I'm not impressed. A couple of points. First: class A amps or not more linear than class AB amps. The distortion just contains different harmonics. Second, it is not just boutique amps that have a single ended design: all early Fenders did and so does the recent Marshall class 5. Second, class D is in fact vastly more linear than class AB. Even cheap class D amps vastly outperforms class AB amps. Almost all PA systems nowawadays are class D and those need a much higher bandwidth than a guitar amp. Third: you are suggesting that the Katana is somehow unique in using a class AB solid state power stage. But that's nonsense. The micro terror for instance also has a simple class AB power opamp as a power stage. Hell, the old samick practice amps were all class AB. Sorry, but I hold you to a higher standard than this!
Think he mentioned it was a promo. Get over yourself.
At 4:00 he literally says class AB is the the most common class of amplifier. You really think he is making the katana out to be unique with this statement?
Funny how people actually expect to hear the full quality of AB amplified sound from a youtube video... As if there is no compression, and the phone or PC audio isn't class D :p
Thank you for providing this information!
Ronald, I appreciate your perspective. Sometimes I catch myself thinking all these amp and pedal videos sound identical, then I remember I'm on my phone! At least if something sounds decent here, it might sound that much better in person.
Guitar in the shower, nice. Trying to pull in the female viewers, I see.
I had the 100w combo and I couldn't get it to sound that good even after messing with it threw my computer. I ended up getting rid of it and getting a Marshall DSL20CR and I personally think it sounds better but I haven't compared it to the Katana artist. I don't really need all those extra bells and whistles I'm happier with a more basic amplifier like the DSL20CR.
Dem Tones Brah! 03:00 lol
Great video Colin! Interesting way to sponsor a video as something useful!
I appreciate that you use technical electronics terms despite catering for a guitarist audience, but in this case it doesn't make sense. Linearity is not a relevant metric for electric guitar amps at all, what with overdrive being the outcome when you drive an amp _out of_ the range where it even tries to behave linearly. If linearly _were_ a relevant quantity, then there wouldn't be a discussion because class D is, within the audible spectrum, _more linear than class A_ - as well as, like you say, more efficient than class B. (And no, it's not more expensive anymore either.)The reason class A/B can nevertheless make sense is precisely that it's _less_ linear, and that (unlike in class B and D) the nonlinearity is musically useful. A solid-state A/B is nowhere near as good as a valve A/B in that regard, but I reckon it does couple to the speaker in a way that may make it sound better. This interaction can also blow out the speakers though, which is why live engineers learn never push a solid-state A/B amp over its limits. Therefore I suspect that Katana doesn't actually use the power stage's nonlinearity at all and instead simulates it digitally, which makes me wonder if it would actually sound any different with a class D power stage...
Is your Ibanez okay after the shower???
HOLY CRAP, THAT KNOB ON THE BACK OF MY AMP THAT HAS IT GO FROM CLASS A TO CLASS A/B OR A BLEND OF THE TWO FINALLY MAKES SENSE
Thank you Collin
WE ALL GOT LEFT BEHIND!!! Love the Slipknot hat tip! Lovin’ some Lamb of God in there too! As always, Keeping it loud! Thanks again Colin for another awesome video, keep ‘em coming!
All that talk of crossover distortion and you didn't mention or show how class A eliminates crossover by boosting the signal so much it NEVER crosses over the 0 point. That's why it's so inefficient -the entire sine wave is above the "off" point where the signal distorts.
*DAM TONES BRAH*
..."Dem Tones, brah!!" Bwaaahahahahaha !!!! Awesome.
Great video... but it actually looks like he isn't playing the guitar... just instrument version of lip synching...hahahaha....
I was just thinking about what the Class AB in the Boss Katana series meant just a few days back and thus video comes up! Awesome!
CLASS H hands down.. all around the best.. Class A, AB D, are swell but made by MATTEL! DUDE come to the U.S. and take some basic tech courses!
Hey Colin, I'm very curious what your professional take is on non-wound pickups like the Fishman Fluence design. I recall you aren't a fan of active pickups, but these seem like a different beast entirely. I always look forward to your insightful perspectives and would be really curious to hear what you think about the tech. Cheers!
some of those tones were real close...
When it comes to comparisons, I like to find out first which one sounds better then after writing a song or two, I question the science that makes it sound better. If A/B or D doesn't change the sound, I'll move on and just forget about it. 😆
Personally, I prefer my Marshall Code 100 Combo for emulation. For power, I like my Blackstar HT Stage 100
I have a Rivera Venus Deux Class A/B. no clean licks????!!! dangit. euro demo as usual about..........Class A/B info. thumbs down. ByeBoyeee!!
I mean, it was pretty well explained in the video that I'd be focusing on rock and metal, so I'm not sure why you thought you'd get different.
Please,anyone give me any explanation because maybe they thinking why are idiots.How one AB class amplifier with consumption 77 Watts produced 100 Watts on the output? " Magical " efficiency above 140% ???!!!
I thought I was listening intently..... Then the Fan turned on while playing.... Well I was BLOWN away.... hahaha
Love all your videos! Would love to see you post a video of you breaking down the complete "anatomy" of a tube/solid-state/hybrid amp. Fingers crossed!
Believe it or not, I played your channel through class AB Amp in my Pioneer SX-780 Receiver through minimus 7 speakers with great results. Unfortunately,my power packs in 780 are aftermarket crap replacing damaged or dead originals behaving as close class B. Keep volume up, they're good until you go low volume. I am considering attempting to mod my receiver to discreet components since there's no more decent power packs. I also have sx-880 with discreet components in class AB and sounds great.
A/B is more linear and more expensive than Class D to build generally. Class D is more efficient but less Linear and less expensive generally to build.... There are Class A ultra linear but extremely inefficient. Class A/B, B, C, D, G, H and others.... Have to laugh though when they are using extreme limited bandwidth "Metal" as their example.
"If I kill all the golfer's they'll lock me up and throw away the keys!"
Well, at least we know what happened to his kids.
Man, I want to thank you and compliment you on your exceptional explanation skills, you really contribute to finally growing an educated generation of musicians with your videos. But I gotta say the highlights for me were the scream at the end and that I use the same handwash :D
All hail from Austria
Good God. Scottish parents, please don't saddle your offspring with this awful accent. Thanks...America and the rest of the world.
This is old news and everything, but Class D amps are the way of the future. The kind of power and clean sound you can get from modern Class D amps make oldschool A and AB amps obsolete. Just in terms of packaging/efficiency. You can cram 3-5x more "clean" power output into a typically sized amplifier cab with Class D parts, compared to with standard A and AB components. A 600W AB cab could house a 2000W Class D board and have extra room for a bunch of other features like a built in DSP for recording or Wireless module for cable-less guitar hookup.
My dad was a bit of an analog mad scientist. He built a 5 watt tube amp to power the radio in his office (WHY? we are still working on that one...). Not some special radio, like, the radio he listened to music on. It would warm the office, which was good, because it was in a drafty old house near Chicago, IL, where it's winter 7 months of the year. Terrible efficiency! (He also made a solid-body electric ukulele, and decided to put a Dimarzio Super 3 humbucker in it. Any other pickup would have made more sense, but he thought that was funny...MAD SCIENTIST.)
*Dem toans brah*
Love this video my friend! Quality has improved a lot since your first videos! Its excellent! Keep up the good work ;)
*_Class 'D' amplifiers sound dimensionally flat and therefore tragically flawed... Solid-state 'class A B' are marginally better, but still, lack life, soul, call it what you will, but it's like watching black & white TV as apposed to, color... So, now we come full circle, where we have to admit (unless you were born deaf) that single-ended class 'A' amplifier sound better, period... Which means they had it right in the fifties, so for those who can tell the difference it's 'Back to the Future,'_*
How do amp manufacturers get away with advertising more output power (150 watts) while claiming 40 watts input? What trickery is involved?
Great Video ! That's what's called 'Thinking Out of the Box" ! At 7:52, then the shower is being turned on, I think the mix might be a tad too "wet" !!! ;-p Congrats on your video Collin !!!
As a bass player I was seduced by a 600W class D amp that weighs 3kg, over my old faithful valve monster with a mere 100W that needs a small team to lift it. I know valve watts are more powerful than solid state watts, but how the flying fuck is 100W louder than 600? On the other hand - on a pub gig I can now run a profit, and I'm a mercenary bastard, now with good back health. But a poorer soul.
My katana 100 head sounds horrible, nothing like any of the videos on RUclips, after time and patience with tone studio I have some brilliant tones love it now!!!
And it's fantastic on stage with a Marshall 1936 2x12
I am not native speaker, but this strange accent and speed, forced me to stop watcing. I can not listen and can not understand (I would like to). Topic is great.
But, like I found myself in the Lord of the rings movie,part 1.
Katana is 100w peak, not rms and definitely not loud enough for much more than the bedroom. You'd kill it gigging or jamming with it, it'd be clipping it's head off. I was impressed with the demo, but useless rubbish unfortunately.
With guitar amps, the class of the amp isn't that big of a deal. Its really about tubes vs solid state. There are 2 main reasons why solid state amps have trouble keeping up with tubes. A tube amp distorts when you turn the gain up on the input until the tubes can't maintain a clean sound any longer. The more you increase the gain, the harder the tubes are overdriven, and that's where your tube sound comes from. This is extremely difficult to replicate on a transistor amp. Especially when it comes to feel. For example, you can set the sound of your tube amp up so that when you are playing light on the strings, you get a clean sound. When you start to play heavy, that will force the tubes to overdrive and you lose your clean signal. Again, its extremely difficult to replicate that type of sound with a solid state amp.
There's also one other big problem. Tubes and transistors distort differently, and the sounds they make when they distort is completely different. When tubes distort, 2nd order harmonics are generated. This type of distortion tends to be pleasing to the ear. Its sounds good. When transistors clip, they produce odd order harmonics. This doesn't sound good at all. Odd order harmonics are the last thing you want to hear coming from an amp.
This is why change has been so slow. The challenges solid state designers are facing are huge. Everything is working against them. Its incredible that they have them sounding as good as they do. An incredible amount of works went into designing these newer solid state amps.
One last thing. Class D amps are not digital. Ever. Some class D amps employ digital technology, but regardless, the signal you hear is analog from input to output, and is never converted to digital. Some class D amps tap off the analog signal coming into the amp, convert it to digital, and use that data stream to turn the transistors on and off. But the amp itself is still analog.
the katana solved this? have you ever heard of the ORange Crush Pro 120? cause that fucking sounds amazing, with a good 212, it's a fucking metal machine, takes pedals very well and just roars like nothing of its kind
Hahah you are amazing. Your way of explaining is uncomparable. Love from India
I spent 2 weeks with the Katana artist.
Let be truthful, and strait.
The Katana does not sound like a good tube amp.
I play metal. I use a 5153 2x12, and Boogie 2c+ head, so that is my reference tone.
The Katana is good for fucking around on ,but it does not come even close to having the presence, and the girth if a good amp.
For a kid with no money, this amp is a god-send.
Great for a ss amp, but it is a ss amp.
As a side note.... companys that put "attenuators" on ss amps really bother me.
The way you attenuate a ss amp, is to turn the volume down.
Unless they have somehow developed on output transformer that thinks it is being fed by output tubes, which they haven't, its just another fake selling point, made to fool uneducated people, and making themselves look like fools in the mean time.
People love to argue about this, they are just wrong.
Even the attenuator on my EVH is fake.
It lowers the pre amp signal before it gets handed off to the output stage, instead of taking the powered output signal, and converting unwanted electrical energy into heat.
Just my 2 cents.
Good video.
Hmmm...still not sure about this type of amp. The effects thrown in shouldn’t be ignored, otherwise it’s a waste of money. My experience with modelling amps is that they can be very sketchy, &, you spend more time trying to get a decent sound rather than playing!
Literally nothing will ever sound as good as Tube amp into a 4x12... Fractal is about the only modeling company that comes close.
Just sayin'... I've got a Katana 50 and a digitech multi-fx. I put the amp selector to acoustic by accident and it sounds gr8 with pre distortion/modulation. Back off bass and treb and boost mid a bit and it's a killer sound. The valve type distortion in Clean mode is gone and it is super responsive to dynamics without saturating.
Wonder why some marketing-people haven't gone:
This amp is "Class BA-D"
:-D