Best Small Modeling Guitar Amp (Jan 2023 Update)

Every guitar player on God's green earth should have one. The different tones offered with the app inspire you to play differently. It allows you to play along with the songs you love, and download the tone. It also tells you the chord progression to the song. It's an amazing Amp, and if nothing else the GREATEST speaker in the world. I could absolutely ruin my neighborhoods night with the most absurdly clear version of my favorite songs. But I could Also practice at midnight with out waking up my roommates using my headphones.
Amazing tones made by professionals. If you care about being a musician… you need this Amp. This Amp was recommended to me by John Moyer… of disturbed.Teryn Surratt

As a practice amp, you will soon lose interest if the tone is thin, boxy and generally sounds like crap. The Spark is none of this. An incredibly wide range of tones are available via the app with sounds that you just don't expect to come from such a small package. The sound is loud, rich without the boxiness that you seem to get with amps loaded with small speakers. If you've used PG's Bias software, you'll be in very familiar territory – great emulations that have a depth that rivals some of the serious modelers available now. The effects, while not giving you a massive selection, supplies pretty well every type of effect you would ever need. The reverbs and delays are particularly good and while more than good enough for noodling at home, are more than up to the task of recording. The unit is quite sturdy with a timber cabinet and looks great – very traditional with an "English" type of styling. Using the Spark as a Bluetooth player for music is more than up to the task – good bass, clean mids and treble and loads of volume. The app overall is very good with some truly inspiring practice opportunities, though the function where the app analyses your playing and constructs a suitable backing track is hit and miss and is probably the weakest part of the app. Bluetooth connection for both control functions and audio playback is stable and very quick to pair with your device. Overall, I don't think you will find and amp sounding this good with the flexibility and functions available, from anywhere else and that is before taking into consideration, the extra functions the app gives you.Mick G.

I bought this amp on the back of all the rave reviews on YouTube etc. For me, it's just not a finished product yet. It feels very "beta". The hardware seems robust and of good quality. The modelled sounds are very good, albeit very bass heavy. But most of that can be EQ'd out. There are several problems I couldn't live with, and had to sell it on. The hum problem which is due to the supplied, un-earthed PSU was very apparent in my example. I contacted Positive Grid support about the issue in December 20, and as of selling the amp at the start of March 21, I had not yet received the replacement PSU. There are temporary workarounds, but I wanted the problem sorted permanently. As said above, the sound is very bass heavy. The amp models' EQ can be used to deal with the guitar tone, but music playback through the unit via Bluetooth has no EQ control, so the sound quality is very poor. In addition to this, the playback level is far too high. When using as a Bluetooth speaker it is very difficult to get the volume low enough using the tiny trim pot volume control for comfortable listening when sat in close proximity to the unit. The Auto Chords feature is a gimmick and needs serious work. It only works for E standard guitar tuning. For example, when listening to a song in dropped standard tuning such as "Yesterday" (guitar tuned down one whole step) Auto Chords will show fingerings for F, Em, A7 etc instead of the G,. F#m, B7 shapes that are required. At the very least, a "transpose" button is required to allow for dropped standard tunings that are very common. When using the tuner, you have to look at the lights on top of the amp. The app should have a screen that displays the tuner on your connected device when in use. The app metronome tempo can only be set by tap. It should have the ability for the user to enter the exact required BPM by inputting the figure required, or selecting the tempo with up and down or + and – controls. All of these niggles were too much for me to live with. Hopefully Positive Grid implement the changes in future releases, but I won't be buying Spark again until they do.Paul

My son loves it, I watch the Hughes & kettner on Andertons tv first and then showed him and he found the spirit of rook more to his taste he plays it though a marshal code 2×12 cab.Reviewed by Andertons Music Co.

This little amp is plugged into a Marshall 2X12 and has more than enough volume to annoy the neighbours. But I got it for low volume practice and use it as a clean pedal platform – sounds great with a Marshall Drive Master and some verb, delay and vibe in the front.Reviewed by Andertons Music Co.

overall I really like this amp. the dirty channel has a good crunch. Not a very tainted sound, which I like a lot. Clean channel is not real chimy like some, but nice and clean. the face plate is also black, unlike the 30 watt which is easier to see. The issue is the channel switching. While some amps are known for a load pop, this is quite the opposite, and I am guessing the pop is what they were trying to avoid. this one actually drops in volume and then comes back up between channels. Deal breaker. I can't use this live if it cuts out. Really wanted to have this kicking around for a second amp. But I will be returning this.brian

First one arrived and the overdrive channel sounded awful. Made arrangements to return it and the process went quick, I had a new one a week after sending the bad one back. The second one turned out as advertised. You can dial in a wide range of tones and has that beautiful tube sound. The reverb is just a tad weak but still ok. Also, effects pedals sound great. It?s an awesome buy.Leo

I had a 50 watt 6L6 guitar head and sold it only to regret it later. I saw this one on sale and I took a chance. Glad I did. Disclaimer: I only use it for a pedal platform, although I have tried the gain channel. It's "ok" (not great) but to use the amp that way you'll really have to work with the both channels to achieve unity volume. As a clean channel pedal platform it's great. Like others have said the reverb is lacking but I usually just leave it on 10:00 for ambience. This amp is LOUD and can easily hang with a large band if needed. As far as reliability, time will tell, but it seems well made IMO.john

Having been messing around with an acoustic for far too many years I decided to treat myself to an electric, and started the search for an amp. I had a few options but went with the Crush 20RT and haven't regretted it. For its size the sound quality is great, and the eq controls allow you to get a nice range of distinct tones. Having the dirty volume away from the gain dial takes some getting used to, but isn't a deal-breaker, and if you find the rather small switch to swap between clean and dirty channels a bit fiddly, you can pick up a foot switch which connects nicely on the back of the amp. Built in reverb is nice, but if you are big on using reverb I'd imagine you'd want to get a dedicated pedal. Tuner seems hit and miss, and again more accurate results will be obtained via a stand alone product. Both good features to have, especially as a starter amp. Overall, highly recommended!Kevin E.

This is definitely the best sounding practice amp I've ever used. The gain channel has several different levels of gain, all sound great. Anywhere from a slightly crunchy overdrive sound to sizzling distortion. I've never had an amp this size handle metal tones so well. The clean channel handles distortion pedals well and maintains the tone of the amp, and if you wanna add a little something extra, putting an overdrive in front of the dirty channel really pushes the mids through. All very impressive for an 8 inch speaker.
The big downside to this amp… is that its deceptively loud. At bedroom volume, it sounds kinda like a shoebox. but bump the volume knob even just a little bit and the full, rich tone punches you in the face, far too loud for playing in an apartment at 10pm. Kinda defeats the point of buying a small practice amp. The clean channel is even louder than the dirty channel.
I'm not knocking off any stars from my review for this however, because it has a headphone jack that actually imitates the speaker response quite well. So if you wanna play this amp late at night, plug in some headphones or you'll wake up the neighbors.
The only practice amp I've ever liked more was the old marshall valvestate, and those are hard to find these days, so this little amp fills that void well.Noah Nicotine

Now let me first state that Guitar Center is the only place I'd buy this from, to try it out and return it to the store. Guitar Center is the BEST. This little amplifier is the WORST. I bought this specifically for it's cabinet output and the fact that it can run on a 9 volt battery. I own four other mini amplifiers, two of them are pedals and the other two are Blackstar Fly 3 (with the extension cabinet.) Here's the crux of my review: The Blackstar Fly 3 is louder and sounds far better than the Orange Crush Mini, even if that Crush Mini is powering a larger speaker cabinet (a 2×10, in this case.) So yes, two 3" speakers in the Blackstar are louder, and the sound quality is far superior to the Orange Crush Mini driving a 2×10" cabinet. The Crush Mini's 3" speaker is unusable, sounds very tinny and is very low volume. Now, I also have two pedal amps that run on 9 volts, an Electro Harmonix 5mm and a VHT Redline 6. The 5mm is amazing, and the VHT is very good also. So if you want to drive a cabinet with a pedal size amp you can put in your pocket, try the Electro Harmonix 5mm. The VHT Redline is also very good and has the added features of an aux in jack and headphone out jack. An adapter cable to use a battery can be had (I have a few of them.) Avoid the Orange Crush Mini, the Blackstar Fly 3 is far superior.John

Unbelievable. This is NOT my Vox AC30, and nor is it my 100W Katana. However, for a package that is powered by batteries and can, quite literally, fit into the palm of your hand, the Katana Mini is simply fantastic. The amp models are brilliant and the delay (reverb) function is an excellent feature. On "clean" settings the volume of the amp is perfectly adequate and will fill a room with no issues, and on the "crunch" and "brown" settings, the amp was more than loud enough to fill a large room at 2/3 volume. Whilst I personally think that this is not quite enough for an advanced/intermediate players sole amplifier, I would completely agree that for a beginner, they would need no more than this. Having tried options from Yamaha and other brands, this is firmly my favourite battery powered micro amplifier for any level of guitarist and equipment, the tone is simply that good! The best way I can describe it is this – when I first plugged my PRS McCarty 594 into it, I was vaguely aware that I wasn't playing through my Vox. However, after five minutes or so, I had completely forgotten this wasn't a "real" amp, and had to keep looking down at the tiny box on the floor to believe it! Well done, Boss!Mr I. F.

I use it primarily as a practice amp at lower levels, but I'd feel confident doing coffee house gigs with it, and maybe smaller clubs too. It sounds warm and rich at low volumes, and the EQ is effective. All three voices are useful and I'm not left wanting. I have to make special mention of the delay. I adore reverb (including and especially spring reverb and gritty, trashy reverb of all kinds) but a simple delay circuit is way more useful in this amp. Doubling, slapback, echoes. The treble roll-off and fixed feedback are well-tuned. If you're using this for busking or other guerilla performance, you will suddenly realize that a single delay is worth more than a thousand reflections, because those reflections sound godawful* against naturally-occurring surfaces. *maybe awesome in a sound design way thoughChesterfleet

I live in an apartment building, and it's just not realistic to crank up my large tube amps while I'm at home. So, I searched for a small combo to use at home. I just needed something small with a great sound, for practice and songwriting. I looked at all of the usual contenders, but the form factor and name brand of Orange really caught my eye. I've played Orange tube amps before, but never one of their small practice amps. I set up this amp on my bookshelf, roughly at eye level. And wow, this amp sounds unbelievably amazing at home volume levels. I can play at a volume which I enjoy, without disturbing my neighbors. I can get an amazing tone without having to crank up my volume. This amp takes pedals so extremely well. I do not use the onboard distortion, but rather I just use my favorite distortion pedals. I simply cannot say enough about how awesome this amp sounds. I strongly suggest, however, that this amp needs to be at a higher elevation, ideally at the same elevation as your head. My amp is roughly 6 feet off the ground, on the top shelf of my bookcase, and it sounds incredible up there compared to having it on the ground. Time will tell regarding its durability. But, I don't plan on taking it out of my house or playing at live settings with it. I envision that it will just stay on my bookshelf permanently. I don't even adjust any of the knobs, now that I have it dialed in. I just turn it off and on.OrangeNYC

First one I ordered arrived D.O.A. That should have been my warning sign to get something else instead. Guitar Center was nice enough to quickly send a replacement, though. The replacement arrived and all was well for about 3-4 months. Amp didn't sound bad but it wasn't spectacular or anything. Decent distortion, nice clean tone. Basic. But now the replacement amp is dead too, for no reason that I can discern besides faulty workmanship or bad parts or something. It sat plugged in and never got moved the entire time, wasn't cranked to 11 or anything like that…it just, like, gave up. I probably had less than 10 hours total on the thing. My advice would be to avoid this one and buy something else.Just a Guitar Guy

So many good tones outta this thing. I bought it cheap but it does heavy metal just as well as clean styles and everything in between. Good amp. My friends love it as well.

Edit: she takes pedals like a total champ and I only say this because I am using very very cheap Chinese mini pedals and a boss metal zone. Lot of my other small amps dont like all the cheap pedals plugged in but the orange can handle all.

Edit 2: I've accidentally dropped the amp from about 4 feet twice now and she hasn't broken. Was 100 percent sure it was gonna be busted but it's fine. Tough little guy.Duncan Whopper

I live in an apartment building, and it's just not realistic to crank up my large tube amps while I'm at home. So, I searched for a small combo to use at home. I just needed something small with a great sound, for practice and songwriting. I looked at all of the usual contenders, but the form factor and name brand of Orange really caught my eye. I've played Orange tube amps before, but never one of their small practice amps. I set up this amp on my bookshelf, roughly at eye level. And wow, this amp sounds unbelievably amazing at home volume levels. I can play at a volume which I enjoy, without disturbing my neighbors. I can get an amazing tone without having to crank up my volume. This amp takes pedals so extremely well. I do not use the onboard distortion, but rather I just use my favorite distortion pedals. I simply cannot say enough about how awesome this amp sounds. I strongly suggest, however, that this amp needs to be at a higher elevation, ideally at the same elevation as your head. My amp is roughly 6 feet off the ground, on the top shelf of my bookcase, and it sounds incredible up there compared to having it on the ground. Time will tell regarding its durability. But, I don't plan on taking it out of my house or playing at live settings with it. I envision that it will just stay on my bookshelf permanently. I don't even adjust any of the knobs, now that I have it dialed in. I just turn it off and on.OrangeNYC

First one I ordered arrived D.O.A. That should have been my warning sign to get something else instead. Guitar Center was nice enough to quickly send a replacement, though. The replacement arrived and all was well for about 3-4 months. Amp didn't sound bad but it wasn't spectacular or anything. Decent distortion, nice clean tone. Basic. But now the replacement amp is dead too, for no reason that I can discern besides faulty workmanship or bad parts or something. It sat plugged in and never got moved the entire time, wasn't cranked to 11 or anything like that…it just, like, gave up. I probably had less than 10 hours total on the thing. My advice would be to avoid this one and buy something else.Just a Guitar Guy

So many good tones outta this thing. I bought it cheap but it does heavy metal just as well as clean styles and everything in between. Good amp. My friends love it as well.

Edit: she takes pedals like a total champ and I only say this because I am using very very cheap Chinese mini pedals and a boss metal zone. Lot of my other small amps dont like all the cheap pedals plugged in but the orange can handle all.

Edit 2: I've accidentally dropped the amp from about 4 feet twice now and she hasn't broken. Was 100 percent sure it was gonna be busted but it's fine. Tough little guy.Duncan Whopper

If you're expecting an amazing Marshall sound, you might want to invest in some of the bigger amps Marshall has to offer. If you think you can get a concert level sound out of this little guy, you will not be the happiest person. However, that level of "high" expectation would not be very reasonable or even realistic for such a little amp. This is a very cute, small amp that will help you plug your guitar so you can practice quietly in any room in your house without annoying your wife. It will distort if you crank the volume all the way out, and if you're used to the full sound of a bigger Marshall (like I do) it might make you feel like you're hearing your guitar over an old telephone (just my opinion). However, if you calibrate your instrument volume & tone you can find a happy medium. With that said, for the price it is a very nice solution to practice and if the sound seems too weak for you, you have the choice of putting headphones. I personally use it just for practice on the fly, it serves it purpose, but then again I was not expecting the best sound output. So I am happy with the purchase.BeeZee

It's basically a toy amp. I can see it being used as a portable amp for non-serious performance. Personally, I like it for a quick jam and for (relatively) quiet practice in my apartment setting. Won't disturb my neighbors but it does get noticeable at the highest volume. That and the overdrive knob are the two main controls. By default it just does a clean sound but overdrive lets you toggle in some gain for that distortion. It has a good look that definitely models after its bigger brothers.Rick

I don't know what some of you guys expect from this thing, but be realistic: it's an inexpensive 5 inch tall, 1 watt amp. It's not designed for anything but sitting in a chair and entertaining yourself or a couple of people. Within that context, I enjoy this thing and sometimes get it off the shelf and play around with it for awhile. Also, when I owed somebody a 1 minute long riff for his podcast and my main amp was getting some regular tech service, I plugged my American Standard Strat into this thing, mic'd the amp, used the OD channel with the volume and tone both on 10, played the part, then added tons of bass, reverb, and chorus to it in post, and it sounded great and nobody ever knew that I recorded the part using a 5 inch tall amp. It is what it is as long as you don't expect the world.Steve

This is a great little amp. The sound is clear, and it fits in my son's backpack for when he needs to take it to school.ktw1050

It arrived earlier than expected. Just what we needed to have our son practice His Bass playing for school . At home . Thanksjistilwel-5

Was looking for a small light weight amp whilst away from home, not wanting to lug around my heavy tube amp, cab and good sized pedal board. This amp fit's the bill perfectly. This amp sounds great, the onboard effects sound good to my ear. And I also like the controls on this amp. Simple layout that makes it easy and fast to dial in a decent sound. If you need more flexibility the architect software, which is a free download from Blackstar, is straight forward to use giving you even more flexibility. Another thing I like about this amp is as I'm away I often need to us headphones, no to disturb the neighbours, through the architect software, you can change the cab simulation from 112, 212, 412, even choose what mic simulation is used, which I think it's an excellent addition to this already impressive small amp. This amp also sounds great through its built-in speakers, giving it a great stereo sound. For this price I honestly cannot fault it, I did look at other amps but settled for this. And I'm so glad I did. This amp is a bargain!!Lesley C.

I hate amp hunting. I wanted something small and specific for a home studio. Shiny cleans with some grit too? Quality build? Under $600? I searched the used listings for weeks trying to find a deal. Nothing really GETS me. Finally, utterly sick of shopping, I walked into Sam Ash, saw this thing on the shelf and just bought it. Didnt try it. Just read the specs online, read a few reviews and snagged it. I figure, worst case scenario I'll return it tomorrow. Let me say, the sound from this amp is just so incredibly nice. Even without pedals, the built in reverb sounds very good. Not splashy, more like a plate reverb. Adding a transparent overdrive makes my G&L ASAT sound like a tone monster. I have no specific affinity for Blackstar. Never owned a single one of their products and I am totally blown away by this thing. I don't know a thing about the tonal waveforms and harmonic frequencies of the most expensive boutique amps but, on a stage or studio I'd put this amp up to pretty much anything. It FEELS good. It sounds good. Between my guitar and an overdrive pedal and the tone knob on the amp itself, I'm able to pull at least 6 very distinct tones before I even engage the dirty channel. It's even got an effects loop. Get one! You'll like it!DANIEL

I bought this amp a few months ago after LOTS of research, having finally decided to replace my previous amp of about 20 years! (A Marshall AVT half stack) Firstly, it looks amazing IMO and build quality looks and feels great too. I play in two bands, one playing southern rock, the other heavy rock/classic metal so needed something that was going to cover a pretty wide range of sounds. The Blackstar handles it amazingly! Wonderful warm crunches all the way to chugalicious highly saturated metal gains. The high gains are so smooth and creamy too and not 'scratchy'. (Something I always struggled with with the AVT) The clarity is also pretty amazing at high gain too. Individual notes can be picked out clearly and not just lost in a fuzzy mush. The 2 OD channels work perfectly for the two separate sounds I'm looking for to suit each band, with Voicing on each channel giving even more versatility. This amp produces beautiful cleans too, which can also break up nicely if you push the clean channel volume up. I'd also really recommend the optional 5-way footswitch, shame this doesn't come as standard, but hey..! All in all, I'm absolutely over the moon with this amp. It can do everything from sparkling cleans to tasty crunch and up to all the gain you could wish for. I've even been able to get THAT Stevie Ray Vaughan tone! 😍 But not only that, it's not some 'Jack of all trades, master of none'…it absolutley nails all of these brilliantly! This amp delivers the sound I've been looking for elusively for years now, funny that Blackstar's slogan is "The Sound In Your Head"… Big thanks to the team at PMT Newcastle when testing the 40 Watt version, and the distribution team for the speedy next day delivery!Davey S.

I had previously bought a Roland 80GX but it required too much tweaking to get the sound I was looking for. So I still wasn't satisfied. When I was playing out in the early nineties I was using an all tube Carvin half-stack which was pretty basic…clean or distorted with reverb and very loud. Great amp but I eventually sold that because it was way too much for home use, and frankly, it sounded best when cranked up. I teach guitar now and I don't intend on playing out again, but I still wanted an amp that was simple to use, solid state so I wouldn't be concerned about replacing tubes, and would be powerful enough to do a gig if I ever got swayed into that again. The only built-in effect on the Bandit is reverb which is all I want besides distortion. I've read that it takes pedals great but I haven't gotten around to trying any. The best thing about this amp (for me) is that I can stop searching for the amp I want. This one is perfect. Clean or dirty, it has great sound and can get seriously loud. For my purposes it also sounds very good at low volume.Russ

Overall: I was able to gig with the unit twice before I had to send it back for exchange. The one I got had issues that occurred,buzz started to happen when nothing is plug in and even when all the controls are set to zero,buzz is still fairly loud!and then the three way switch in the rear panel that switches from 100%-50%-25% does not engage to 25% percent. yes this amp is loud! and last of all you have to buy the peavey footswitch….The Great news is, this amp sounds very good both clean and dirty channel. The cleans can be dialed well(fendery!) and takes Overdrive/Distortion well and that's if you need a pedal. The Lead channel has great gain depending on what you use it for! I like the classic Overdrive/Distortion(aka- marshall) setting allot. I play in two different bands, the first band I'm in plays Rock/Alternative,Twang Rock,Blues Rock,Heavy Rock, Responds real well to volume knob adjustments on the guitar during live playing. The other band is more Funk,Jazz fusion,Gospel,R-n-B type and this amp does it well without any pedals! and that's what I bought this amp for! basically I don't wanna use pedals,just amp cable,guitar and the footswitch to switch from clean to dirty and solo boost when needed. And it does it very well! I dig this amp allot. All the features and especially the solo boost function is awesome! the effect loop works well. I hook up my Boss DD20 with two 15ft cables(not live just for home use!) and there was hardly any tone lost or I could not tell at all. And this is coming from an overly picky Guitar Player. This amp is well thought out by Peavey Engineers and last of all its pretty light amp!Now I just have to wait for the other Peavey Bandit to be delivered to my front door and hope its trouble free!,and thank you zZounds for taking care of business, you always took care of me when there were unexpected issues and you got on top of it fast. Thank youWb

Everyone treats this like either a country/blues amp, or a metal amp. But it does fantastic tones for bands in between. Think Foo Fighters, Jimmy Eat World, Kings of Leon, The Gaslight Anthem, Death Cab… those in-between tones…it NAILS them. The amp sounds tube. And i mean that. And i've played/owned a LOT of expensive tube amps. I love this thing. Sounds great. Is it a JCM800, Princeton, AC30, or Deluxe? No. It's not. But it can get amazing ballpark sounds. And I dont mean "Line 6, Fender Mustang" ballpark, I mean close your eyes and it would take a discerning ear. Sounds great at low volume but absolutely keeps up with a drummer at half volume. I can gig with mine no problem. If I HAD to pick something to gripe about, it's that by now the new ones should have the 3 different overdrive types foot-switchable. As it is, you can switch between clean and overdrive. But you set which type of overdrive (vintage, modern, high gain) at the amp and if you want to change your OD type you have to do so with your hands. This is an extremely minor complaint though and I'm being crazy picky. Especially considering that between a tube-screamer, Joyo AC Tone and the vintage channel, I can get every sound I'll ever use. I'm not really into the heavy stuff, but it does do that very well too. Oh also, it takes pedals like a tube amp. I've read reviews from people who say that it doesn't and they must be insane. Also..i dont know why the youtube videos comparing them to fender amps sound so muddy or dark, that is DEFINITELY a settings problem. I can get mine sounding VERY fender. And i'd put it up against a Hotrod Deluxe any day of the week.underXtheXradar

Overall: This amplifier absolutely rocks! With so many options you can dial in any sound that you want, from crystal clear clean to roaring rhythms and screaming leads. As everyone has already said, the reverb is almost nonexistent. However, the amp, tubes and build are rock solid. BUT… if you really want to blow your mind, swap out the speaker with one that fits your style. My style is classic hard rock so after much research I swapped out the 70 watt Celestion V-Type speaker that it comes with for a 150 watt Eminence Swamp Thang and I swear that it sounds as loud and ballsy as my full-on DSL100 full stack with 1960 cabs. The difference is mind boggling. No fizz, no speaker distortion at all. Just a loud, clear representation of my sound. Obviously the Swamp Thang might not be your speaker of choice but do your research and this will be the only amp you will ever need again!Scott

Sound: With good tubes properly biased, yes. Features: One feature that I absolutely detest is the effects loop button. When it is activated the front of the amp ceases to operate and when deactivated, the front works but the effects loop deactivated. There's no reason for this feature to exist. Substantially limits what the user is able to do. Bad decision in the design. Ease of Use: Just need to fix the owners manual to include specifically how to bias the tubes. Value: At the time I bought it, it was around $800. So at that time, yes. Overall: It took me a while for this amp to grow on me as it sounded like crap out of the box. I replaced the stock speaker with a Celestion V30 and replaced the stock tubes with Ruby EL34STR and a 5751 in the PI as is my typical configuration. Still couldn't get an acceptable tone was fuzzy and grindy. Years later, I learned that you can self bias the amp. After reading forums, there is little info on how to bias the amp and nothing in the manual. I discovered the bias was at 31mv so I turned both to 40mv and HOLY SMOKES this was the tone I've been seeking all these years. Eureka, I found it and it's incredible now. Completely unacceptable that Marshall included zero information in the manual regarding this, which is a pretty important feature. Moreover, it's important that I explain how to bias this. When you place the multimeter leads in the ground and point, one point will give a reading and the other red test point will read zero, always. YOU WILL NOT BE USING THIS TEST POUNT AT ALL. Go back to the one that gives the reading and keep it in that test point and adjust the pot to 40mv. Then, keeping the multimeter lead in the same pot, turn the other bias adjust til they both read 40mv. Next onto the effects loop, there is a button to turn the effects loop on and off as you can not use both simultaneously like in other amps. What good is this feature? Worthless and is an absolute thorn in my side as I would like to use the midi to switch between both which is why I bought it, but can't. Now, the amp does sound good now that it's properly biased as well as replacing the stock speaker, but I lost years of good tone due to the lack of instruction in the instruction manual.Jonathan

Overall: This thing is awesome if you like that Marshall tone this amp is for you, it's really a 4 channel amp if you get the six way Marshall foot switch, if I had to nit pick this amp would be the reverb, don't get me wrong it sounds great and is useable for 90% of what you would need it for, but if your wanting that Gilmour type reverb you'll need to add a reverb pedal in the chain. Where this amp really shines and I discovered this on accident I was messing around with the effects loops and added an EP booster which I would normally run on the front in, and just WOW…adding the EP booster to the loop really opened it up, tamed some of the compression and evened out the gain while improving the tone, sounds more like a JCM800 at this point, I'm super impressed with this little amp and I have some really nice amps in my collection. Let me say I would totally gig with this amp without question. This fact that Marshall made it easy to change and bias tubes is a huge thumbs up as well. Other manufactures please take noteRick

Recently bought this thing after saving up for months. I pretty much ripped it out of the box, plugged it in, powered it on, went through the very quick and simple setup process, and in minutes it was ready for use. I’ve now had it for a few days and already it has made my life a ton easier. Being a musician that goes on the road a lot, carrying around an amp can be a huge hassle. The Kemper eliminates that hassle, while also maintaining an amazing tone. A few things to keep in mind, though:

1. It doesn’t create an EXACT carbon copy of your amp, but it comes EXTREMELY close, so close in fact that I, having played guitar for around 7 years, can barely tell the difference, and the very microscopic differences there are, are nothing that can’t be ironed out with small tweaking to the EQ, specifically the high end

2. The volume may vary depending on how the venue has their sound system set up, so that’s something to be mindful of. You may switch on and blow eardrums at some places, or you may switch on and barely hear anything in other places, so be mindful of that.

3. You will have an amazing tone, so just be mindful of that as well. Even the stock profiles sound great, but the Kemper is taken to a whole new level once you start using your own profiles, as well as commercially sold profiles, such as the ones from Tone Junkie.

The built in Performance mode also allows for a seamless switch between up to five different rigs at the click of a button, which would be impossible to do using only analog gear.

The Kemper can be a pretty big learning curve, though, especially for people like me, who have used analog gear for years, and were even leery of making the switch to digital at first. But after the initial learning curve and getting familiar with it, I promise you will be glad you made the switch.Brandon Johnson

I bought the 600w version after a ton of research and inner debate. I had solid state rack stuff in the early 90's and hated it. It always had something missing from the tone, it seemed shallow and fake. I turned into a die hard tube guy after that. I pledged never to buy any computer amp ever again. I dismissed the Kemper at first. But once I saw some videos and heard some profiles, I was a little interested. I couldn't get past buying a computer and having 1000's of tones at the turn of a knob. Once I heard it live, thru a cabinet in a rehearsal space, I was floored and very surprised. My friend went from a 68 Marshall to a 6505 to a Fender Twin Reverb with a turn of a knob in seconds. I've owned very expensive tube amps with very distinct tone signatures I thought could not be replicated. I was 100% wrong. I profiled my Engl head and did a blind test to see if I could tell the difference in tone once I shaped it up. I honestly couIdn't tell the difference. When I guessed, I picked the Kemper 4 out of 5 times. I went to the rig exchange and found a profile that was reasonably close to a 59 plexi. I tweaked it for 10 minutes. Within that 10 minutes, I saved thousands on a new tube amp. The Kemper is a perfect fit for the skeptic. There's a million forums and tutorials out there so you'll never feel lost. Once you learn the menus and how to dial in a tone or profile an amp, you're hooked. This is the most versitle amp I've ever owned. I am completely satisified.Rob

Like the title says, you can find 1000's of these for sale used and there's good reason for that. It doesn't sound like tube at all. I think it's good for the studio where I've used one. But live? If you're fine with a solid state head, then fine. The modeling really isn't any better than higher end Line 6 modeling. This past labor day, Great White was playing a festival near by. They had a total of 8 Marshall 4×12's on stage with 4 DSL 100 heads. Not one of them was powered on. So I looked around for what they were going to use, I saw 2 Kemper Profiler heads. 1 for each guitarist. The sound was absolutely terrible. Neither amp sounded anything close to a Marshall or like tube for that matter. You could hear the cab emulation a mile away. At this price point go another direction. Unless your application is purely studio.guylemieux

I've owned this amp for a few years. With the clean channel engaged, it sounds great with pedals (mxr super comp into boss od) and gets surprisingly loud for a small apartment. I dont think it would be loud enough for most band practice settings as far as volume. The biggest gripe I have with it is that it defaults to the distortion channel, which is useless for any application. Muddy, buzzy, no low end, no smoothness… just rigid cold distortion that muddied your notes even with the gain at the lowest settings. It's in fact the worst distortion I've ever used. Whenever I turn it on, I immediately switch the channel to clean.Alan

Bought this for practice when lower volume is required. Looks great, Sounds great. From the research that i've done, this is the best sounding solid state amp of is size and class and i feel like the research really holds up!Tony

This amp is perfect for the practice I have. The clean has amazing clarity and the overdrive has enough grit to fool around. I can experiment with any pedal as well. Sounds great. Great purchase.EDGAR

I have a Marshall 412 cabinet with a 100 watt Marshall head. I needed a smaller amp to practice at home and for small jam sessions. I picked the Marshall MG15FX because I know and like the Marshall sound and quality. The Effects features sound good too. I bought the footswitch for it too. This amp sounds good and powerful enough for any small jam or studio work. Marshall makes a MG30 if you need more power.Max

I really like this amp. I don't have to turn up the master volume very much for it to get loud enough. I plan to hook up a Line 6 Pocket Pod for heavier distortion and more effects options. I'm a big fan of delay and am happy with the delay that comes with this amp but I did get a Boss DD-8 digital delay pedal and it works well with this amp. I previously had a cheap 100 watt amp but it only sounded well at low volume. I feel this Marshall amp is better quality and I am glad I got this one.Ferdad

i use this fun little amp at home to practice and jam. sometimes with friends. i've have owned fender and peavy practice amps and this Marshall is just as good or better. i like the clean and various overdrives..the effects do a good enough job and really like the two different reverb effects. i like the headphone option for keeping the neighbors and girlfriend happy when playing late night. i play a Epiphone Les paul traditional pro iv and the combonation sounds super for hard rock and blues but i needed to get a heavy metal pedal for metallica songs. wish it had a longer plug in cable. but over all it sounds really good for what i payed.. ;owned it for two years and keeps on rocking.rob

With C19 I was looking for a good home tube amp and the Revv D20 way exceeded my expectations. The sound is terrific. Works well with my hx effects + pedal board. Attenuates onboard from 20w to 4w. And when I need to be quiet (headphones) or just want to pull tones into my DAW, the Two Notes torpedo is really good. I'm really glad I bought this Amp.Ira

Great sounding amp and the built in two notes cab sim is great. Great metal tones but you’ll need an overdrive pedal to really get the most out of it. Clean tones are gorgeous. MIDI is simple to use to change the channel and various other parameters too. Highly recommend for anyone wanting to silently record but with the option to power a cab too!Reviewed by Andertons Music Co.

What a fantastic amplifier this is. Worth every penny. The High and Low power settings both give different sounds and are equally usable. For more gain I use a Korg Nu:Tekt Over Drive pedal, they go very well together. I use beyerdynamic DT770 Pro headphones with the cab sim output every day! Have not stopped playing this amp since it arrived and I would say to anyone looking for an amplifier like this that if they are in a position to do so, then buy it without hesitation. My Shergold guitar and my Gordon Smith guitar go so well with this amp- both guitars have Humbucker pick ups and definitely give me the kind of tone that I have been looking for since I first heard JoyDivision more than 40 years ago. The amp works well with my Gibson ES330 guitar too which has P90 pick ups and is sort of an upmarket Casino. If anyone knows the sounds of Bernard Sumner with both the Shergold Masquerader and the ES330 then this amp sounds a lot like his setup without the punishing volume of his Vox. I have also been able to get the Neil Young Cortez the Killer tone pretty convincingly too. No regret at all in buying this amplifier and if it breaks would buy another without hesitation. I should perhaps add that this is the first Valve Amp that I have ever bought after many years of building my own Valve Amps.David C.

I have bought and sold several amps over the past few years, and I think this one's the keeper. It reminds me a bit of the katana 50 in that it has lots of features – but it is far easier to figure out how to use. I wish it had a slightly smaller footprint, for portability's sake, but the sound and usability make up for it. I also wish manufacturers would provide more useful documentation, but there are lots of helpful videos on the web. From clean, to crunch, to filthy – and some Fender Vibratone if you like – this amp can do just about anything.CR

Sound: Its odd they make you choose a rating for manufacturer support seeing as I imaging you would only contact them if you had an issue with your new item and zZounds didn't resolve it Overall: Its way louder than I expected. We don't turn it up past 3. The distortion sounds great. The amp modules sound great. For metal and grunge which my daughter plays its fantastic. I used the acoustic channel for jazz ukulele and it sounds great as well.James

I work at a guitar store so we recently got these amps in, I have to say that it genuinely shocked me? For the price and for what you get, it's pretty darn good
I'm really picky with my amps, so much so that I've only had one amp my whole 5+ years of playing and seeiing this new amp really, made me wanna get one, don't think of it as a legit replacer to a real 6405 or a XXX Head and Cab, think of it as a beginner amp, something to get started one, yes it has a lot of knobs and buttons that may seem intimidating, but take some time to get to know the little beast? You're gonna be kicking fun with this thing for hours.
It has some pretty alright effects besides the amp itself, the only thing I will say is that when passing 4-5 on a distorted amp like the 6505 it rumbles, and not in a good way as well as the whole amp kit app, IOS only? That's a bummer
Besides that, great amp.David Romero

This head is rugged enough to endure constant venue changes and climates! The clean tones are like the feeling of warm chicken noodle soup sliding down your throat and into your tummy! Mmm mmm good! The crunch tones are so beefy you'll think you entered the hamburger eating contest at the Farris Truckstop in Missouri! That lead tone though…. Have mercy! Smooth like Betty Crocker and cuts through the mix like a warm butter knife! This head is for anyone looking to make the switch from lil Wayne playing to sounding like Carlos Santana! Well worth the price!Thomas O

I have 3 of these amps so far and love them. You can't expect a big tube sound because it's not that but rather a smaller very useful sound. I customize them slightly with an 8" speaker that fits in them and do a few other little things. For very little money you can have a killer little tweed looking amp. Works great for rockabilly and roots music with an archtop for me and takes any pedals well. Can't beat these little work horses.Travis

Beautiful cover and vintage tweed appearance. Good for an office. If it got ripped off you would get over it quick. Have to use pedals or limited functionality makes practice boring rather quickly. Clean very good. Gain option is unfortunately toy-like and useless. Just leave it off.Records Reills

Cool little amp. Been spending some time playing with it. Love the tweed look. Wish they hadn't put the Rogue plaque on the front of the grill, and had kept true to the Champ 600 look by putting it on the top of the amp over the speaker. The clean channel is good, wish it had some built in reverb. The distortion channel is good too. I ran my "Bluesdriver" pedal into it and it sounded even better. I will likely change out the stock speaker for the Eminence 6.5 speaker to try and coax a little more sound out of this great little amp.KWB MUSIC