New Guitar Or New Amp For Sale (2024 Update)

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.

Just picked one of these and it's been a joy to play. Pretty easy to use with quite a few options. Was able to dial in some tones that sound like my $800-1k tube amps. Honestly this amp is the best bang for your buck amp available imo. I really love the Waza Craft Greenback speaker. I love the .5, 50,100 watt options. Haven't even explored the software yet but I'm confident enough in this amp to give it a 5 star already. This of course is keeping in mind the fact it's essentially a budget amp price. You won't regret spending the money imo. Awesome job, Boss. 🤘 🎸Jason Faust

Sound: Right out of the box? I didn’t even adjust EQs. Set volume and gain, and started playing. Took 0 effort to get 98% of the way to my live tone that is an Orange Rockerverb 100W MK2 and Marshall 212 with V30s. Features: I love the Tone Studio. I did have to pull a star from Ease Of Use because it may be confusing if you’re not good with computers. Ease of Use: If you can’t get a good sound out of this amp, return it, sell your guitars, and find a new hobby. That’s how easy getting a good sound out of this is. Quality: Seems pretty decent. I wouldn’t call it robust, but it doesn’t FEEL as cheap as the price would suggest. Value: 100% worth the price. I’d have paid $100 more for it if I’d have known how good it would sound. Manufacturer Support: I’ve dealt with Roland/Boss in the past, and they’ve always been wonderful. The Wow Factor: Looks good, sounds good, price is good. A perfect practice amp, that could stand in for a small venue in a pinch. Naturally my live rig is a bit much for my apartment, but this is just what the doctor ordered. Overall: Solid state amps have come a long way. A REALLY long way. I’ll be honest, being a tube snob, I had very low expectations. I could have set the bar in the same area as I would a $2,000 and it still would have hopped it effortlessly.Kenny

'm a novice guitar player with less than 2 years experience, but I reached the point that I wanted to experiment with different tones and effects. The problem is that it would be very expensive to do this with different pedals, amps, guitars etc. I ordered the CODE 50 sight unseen after researching reviews & videos online, and it fits the bill perfectly. CODE 50 is an affordable way to play around with a crazy number of tones and effects & find your sound. I'm sure there are plenty of experts & purists out there that will find flaws with this amp, as it models (imitates) a number of historically great amps from Marshall, & what I presume are a version of Fender amps ("American Clean" etc). Does the BluesBreaker preset sound identical to the BluesBreaker amp that Clapton was playing in the 60s? Close enough for me cause it sounds pretty radical! There are a number of presets that are just epic for playing blues, rock, metal, on & on. Pick a genre of music and you can generate a tone that will fit right in. All of the presets can be tweaked to the players specifications. You want more reverb on that reverb? Dial it up. Some of the things I notice after just playing it a few times: As billed, CODE 50 is LOUD, so be careful. Not a complaint; I wanted something versatile enough to practice at home, but be loud enough to jam with others. There are some pretty big discrepancies in the volumes between a few of the presets, another thing you have to be careful with when toggling back and forth between presets. While plenty of the presets sound unique, there are a few that sound a bit redundant, or maybe just so close in tone to another that it feels that way. There are one or two that I can't imagine anyone using ("Virus?" Virus sounds like someone is strangling an organ-at least that's what she said!). Overall, if you want an affordable way to experiment with tone, get loud, and have fun, the CODE 50 is a rad choice. Thanks Marshall!Jeremy

I've been playing on and off for 20 years. Mostly an attenuated tube amp guy and a gear tinkerer. Found one of these on the showroom and gave it a quick whirl. This quickly led to buying one. Cons: The more time I spent the more I realized how limited the stock speaker is. It's super directional and the bass is a bit boomy and hard to dial out without removed too many lower mids. It still sounds good, but it can be much better. The stock preset settings, like a lot of reviews, leave me scratching my head. The resonance, presence and gate settings in particular tend to screw with the quality of sound as set from the factory. There's no speaker out, so I installed one. If you want this amp to shine, you'll need to do a speaker swap or plug into a 4×12. Marshall should have done this. Pros: The goods are definitely there, but you need to scratch the surface. Once you get that direction figured out, it's very easy to dial in your own settings which will differ quite a bit from the factory presets. I have a 4×12 w/ Vintage 30's and this amp sounds amazing plugged in. The JTM, Plexi, JCM, JVM, American amps all sound outstanding. But the JTM45 in particular sounds outstanding. Effects are great and I'm starting to use certain effects that I normally wouldn't buy a pedal for simply because they're in the amp. Another must do is to figure out your speaker choices for each amp. I'm a Vintage 30 fan, so after changing the speaker to V30's on all the amps, to me it sounds much better. It's a good tool to be able to hear what different speakers will do at the turn of a button, just to see what characteristics in speakers you may like. My secret sauce with this amp is my Les Paul through a 10 band EQ (to boost the highs you loose using the speaker emulations through a 4×12 with those emulated speakers), through a Marshall BB-2 for boost, into Marshall Code on JTM45 through the 4×12 w/ Vintage 30's. Absolute heaven going on with this, even at low volumeWisconsinski

The marshall code 50 and all other modeling amps are not plug and play,you have to dig in and change the parameters in the amp and create user presets that sound good to you! If it sounds good then it is good! If you want your amp model to sound just like the tube amp it is modeled from,then buy the tube amp. I have other modeling amps and my peavey vypyr 75 recto model that i like very much does not sound just like a mesa but i tweaked it to sound good for what i like,i think the marshall code amps sound very close to there own tube amplifiers that there modeled after and that is how good amp modeling is getting.I just want to mention some things you can do to improve the sound of your marshall code,first break in your amps speaker for about 100 hours by playing your amp fairly loud a few hours a day,about two months or you can play MP3 music through the AUX input. This will smooth out the harsh higher frequencies and break in the speaker for better low end without the speaker farting out.Here is a great tip for the bluesbreaker and other amp models that have too much low end,when i first heard the bluesbreaker model the low end was muddy and had too much bass even with the bass and resonance turned down to 0! I tried my behringer PB100 pre amp booster pedal with the bass control turned down to a 7 o clock position and that did the trick,the low end mud was gone and the mid frequencies stood out like i never heard before! It just sounded great now! I then tried my behringer TO100 tube overdrive pedal and i could not believe that the bluesbreaker model even sounds better then the pre amp booster! The TO100 overdrive also cut out the low end mud and the mid frequencies were smoother and the higher E and B strings on my guitar had a nice round tube tone without thin sounding harshness! I also tried the marshall codes internal OD and GVR pedal effects but my behringer TO100 sounded much better!MarshallMan50

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

Fantastic little amp. This is the tone I’ve been looking for, at volume levels I can manage in my living room. I’ve got it running through a Marshall 1×12 cab and the sound is amazing, even on the 0.1 setting. Lovely cleans with a rich natural break up on channel one, and wonderful crunch through to screaming distortion on channel two. Pair this baby with a Les Paul and you’re in heaven. I can’t express how much I love this amp. I’m thinking of buying the combo for another room in the house.Reviewed by Andertons Music Co.

I ordered a positive grid 600W head it arrived defective and I returned it the next day I then ordered and paid for a second one because I didn't want to miss out on the deal. Well today I called them because the second head was not being shipped and I was told that I would not be getting the second amp because they were out. They are refunding all my money that's not the problem the problem is I was told they had another to sell me which I was find with even though they should have set one aside because they knew the first one was being shipped back. I was not even offered a deal a a rack one which they have in stock I think I should have been offered a deal on one of the other positive grid. I guess I won't be coming back terrible customer service.carl2-82833

This amp is incredible. Having pretty much any sound at my fingertips, in a unit which can go from whisper quiet (but still great sounding) to stage volume is awesome. The knobs/switches etc all feel like very high quality, and the added software licence is a nice bonus. It may seem pricey, but it is way, way cheaper than buying all those classic amps, and the sounds are indistinguishable. Can't recommend highly enough.malediction99

I was very excited to get the Bias head after many reviews online. To my disappointment, it seems that this amounts to a midi controller for the Bias Amp software and pretty much nothing else. Unfortunately, I was not able to get any kind of usable tone out of this (possibly due to my own lack of understanding or maybe it needs to be run out of a cab) but, the thing that made me give it a two star rating is that I found out the Bias FX software cannot also be used with this head. There is so much more that could have been done with this thing. I am very disappointed with the execution of this product and had hoped for something more than the bare minimum amount of functionality.NICK

I've been playing guitar since a kid. My Dad used to own a guitar store where he was an amp technician. I'll always remember sneaking into his room when he wasn't home and playing his salmon pink Strat and Twin reverb amp. There was always a magic in them and they really inspired me. Fast forward 30 years and I've grown up just like him. Been playing professionally for a long time through some pretty nice gear but something in me always wanted to revisit that amp, it just had the perfect sounds I played lots of amps before choosing a Marshall 50w plexi as my amp of choice for gigging and it was good, no doubt a about that, played it for almost 15 years straight until one day buying that Twin I'd always so wished I also had. Found I played it far more than the plexi so actually ended up selling the Marshall and just sticking with the 65' reissue! It does everything the Marshall did and more I think. Playing them side by side before making the final decision to sell set my mind at ease because I couldnl get the same sounds from the Twin. Even did a little A/B recording with overdrive and no one could pick which one was which I play mainly classic rock and this amp is everything I'll ever need. Small wattage Amos always sound and feel small to me so was never interested in them, of it's too loud turn it down, the volume is far better than the plexi because that one sat on a hair trigger, really difficult to get a bedroom volume out of. The Twin is quote easy and pot smooth to use. Plexi goes from 0-almost full volume at half way to 1 on the dial. Love itJez

I received the amp yesterday and have only played it (both the vibrato and normal channel) for about half an hour in my living room, but I was so impressed that I wanted to go ahead and write a review, which I almost never do. I've been playing electric guitar almost 50 years and have owned many different amps, almost all Marshall or Fender, including a late 60s or early 70s 100 watt Marshall (no master volume), a mid 70s silver face Twin Reverb and Dual Showman, a 1987X 50 watt Marshall reissue, a '59 Bassman reissue (before the LTD version), a '65 Super Reverb reissue, a Twinolux, and a standard '65 Deluxe Reverb reissue. The only other amp I have currently is a wine red '65 Deluxe Reverb reissue (DRRI) with a P12Q Jensen speaker. The '65 DRRI has been one of my favorites. I like the 6V6 sound and I think it's hard to get a bad sound out of that amp. I really like the clarity of the 64 Custom Deluxe Reverb compared to my '65 DRRI. It is noticeably brighter than my '65 DRRI, but part of that may be because the '64 has a C12Q speaker while my current '65 DRRI has a P12Q speaker. Since reverb and vibrato work on both channels of this '64 Custom Deluxe Reverb, the vibrato channel is like having the bright switch on (it reminds me of the way my super reverb sounded with the bright switch on) and the normal channel is like having the bright switch off. I like the way both the reverb and vibrato work and sound on this '64 more than the '65 DRRI. The same guitar (a Strat with '69 custom shop pickups) has noticeably longer sustain when I play it through this '64 compared to my '65 DRRI. Some people have mentioned a possible problem with noise (hiss or hum) from this amp, due to the way the channels are connected together, but I hear virtually no noise at all from this amp, not when it is sitting still (with both normal and vibrato channels turned up to 3), and not when I turn any of the knobs. I wish I had bought this amp in the first place instead of the '65 DRRI.Kenneth

I've been playing night clubs, Casinos, Hot Rod Runs, Bike Runs, weddings, parties, and everything since 1979. I used to use 2 Fender Twin Reverbs with Celestian G-12-65's and a rack of effects processors (to run STEREO), with a octopus of wiring to set up at every gig, plus an octopus of switches and stomp boxes and wall warts on power sttrips on the floor. Set up time and tear down time took hours. Sometimes all that wiring maze would pick up the 60 cycle hum, and what a mess locating the buzz! After a gig I had to set all that stuff up again at my home studio to practice. Sometimes there was no time… In 1996 I bought a Line 6 Flextone 2-12 (stereo) and that changed everything. It ended all the major problems and electrical buzzes. I programmed the Flextone right next to my Fender Twins and matched the tones exactly on the Flextone. WOW! No more Octopus Monster and Heavy Gear! I have since had a Spider III HD 120 with 412 bottom, 2 Spider III 210 combo's a Spider Valve 100 head, and recently a Spider IV 120 210. I Use the Spider iii 120 210 and Spider IV 120 210 amps on stage exclusively, with an FBV floorboard. Very Simple for stage and Awesome Sound everywhere I play! But again, many times my gear is loaded in a trailer, or at the venue and I need something that sounds like my Spider IV,,, so I got a Spider IV 15 watt. I quickly dialed in my 6o's Fender Reverb Tone for Country and Surf Tone on Ch 1, my StevieRay Vaughan "Little Wing" tone on Ch 2, The Stevie Ray Vaughan Roto-Vibe Tone on Ch 3, and a Van Halen tone on the Insane CH 4. I'm good to go! The only thing missing, is that the larger Spider Amps have a separate Reverb knob and the Spider 15 shares either the Echo Delay or reverb on the same knob, so you can't have both to smooth out the delay. It's one or the other on the Delay or the Reverb, but that's not a big deal on a great practice amp, that i could use onstage if I had a mishap with my other amps. Sounds best when you aren't pushing the master all the way to the max. Crank it up, dial in your tones, then back it off about 7 on the Channel Volumes, match them, and run the master at about 6 or 7. I can switch the channels with my FBV Floorboard and use it for practicing in real small rooms with a band. If it's not loud enough…Mic it! The tones I use are there and I can pack this amp in 2 minutes and walk out with my guitar without breaking my back with the heavier stuff. Fits right on my front seat. Done Deal! If it's your first amp, it's probably the best starter amp for the money, and for me, I have my tones dialed in for practice anywhere with no hassles.Kenny

Ups dropped it off yesterday, and it is everything I hoped, but better. The metal and insane channels are perfect. The clean is gorgeous, for a sort of metal clean tone. If you want to play a lot of Zeppelin or Pink Floyd, you might be better off with a Vypyr. but if you want Mettallica and Crue, to A7X, back to AC/DC and Aerosmith, youll love it. The metal channel is heavy as hell, and can still get up and throw piercing highs and mids. Everything is tight and punchy as hell. The biggest thing that shocked me was the clarity at seemingly stupid volumes for such a small amp. MF was out of stock when I ordered it, and I still had it in 7 days with free shipping. I highly recommend this amp to all metalheads. Thanks Musicians Friend and Line 6. RNFRJag

Very satisfied with this guitar amp. It has a lot of great effects, like flanger, reverb, tremolo, and tape echoes (to name a few). It's very fun to mess around with settings to create great spacey sounds and heavy, sludgy tones. It's also very easy to use. The amplifier also has very useful features, like a built-in tuner and a "save" feature, where the amp can save and remember four different settings at the push (and hold) of a button. It has great tone, volume, and variety, and it picks up things like pinch harmonics extremely well on the Metal and Insane tones. It's also pretty light to carry. I'd definitely recommend this amp for someone just starting out and for someone who's rather experienced with guitar playing. Great price for an amazing amplifier.Katastrophecy

Huge sounding and a lot of power for such a small amp. The Spark Control App gives you loads of choices from classic sounds to the most modern of amps out there today. You also have tons of effects to use in conjunction with all of these modeled amp choices. All of these possibilities can be saved as your own personal presets which can endlessly be tweaked to make you sound and play your best. You can also use the Jam Along feature which syncs to iTunes, Spotify, etc. while also displaying the chord changes as you play. The Spark amp also connects easily to any DAW for professional sounding quality recordings. This amp does it all for a fraction of the price.Javier

Used it only for practice. Unusable for live performance. Every update was a fiasco and after 11 months, it only works as a Bluetooth speaker as the Amp section gave up. Google that issue and found it happens to many other users. Defective chip and Positive Grid helpdesk is not responding.Cory

The amp is awesome. Well built and solid, very pleasant to look at, easy to use and the sound! Oh man, the sound of that little amp is just beyond belief. Full and rich, it fills the room as though it were five times the size. With the app on my android phone, fine tuning the sound is easy and intuitive, and you can save your sounds as presets if you wish. But even without using the app, the presets that ship with the amp are simply stellar. In my opinion, the amp is well worth the price.Richard L.

A ZT LBR1 showed up yesterday nicely double boxed from Musicians Friend. I bought and returned an original Lunch Box when they first came out. It did not sound that good to me. But here is the temptation repeated, this time with reverb! My QSC CP8, HX Stomp, cable, and power supply weigh nearly 24 lbs. By the way all purchased at Musicians Friend. The CP8 is rated at 124 dB peak SPL and the ZT LBR1 at 123 dB peak SPL. As is often the case the marketing gets ahead of reality… The ZT box says 9 lbs., the ZT manual says 10 lbs., and my scale says 10 lbs., 4 oz. My wife is working from home and I did not have a chance yet to try it at stage volumes. At reasonable volumes it compares nicely with the Black Face Deluxe Vibrato Channel plus 63 Spring Reverb running on an HX Stomp into my QSC CP8. Maybe a little less very high-end brightness and I did put the LBR1 treble control to 2 o'clock where the Stomp patch is configured with Bass and Treble set to "5". With my guitar's volume controls set to "8", I have both the HX Stomp and the LBR1 (gain at 12 o'clock) set to give a little distortion for richness when strumming or fingerpicking. Both setups give me a nice sounding light overdrive when I push the guitar volume controls to "10" The bottom line is it does exactly what I want at half the weight and bulk. My only criticism is the hiss is louder than the CP8 and while I would never imagine using the CP8 on a desktop, you could. Whereas the LBR could easily sit on a desktop but you wouldn't due to the hiss. No issues sitting on the floor even in a quiet room. The bass response might have been tuned for floor placement anyway. One observation… I like to "burn-in" new electronic toys and the LBR1 runs warm. I am guessing it is a class A-B power amp. Still not any hotter than the HX Stomp with its SHARC DSP.Jon Fields

Used for taking to friends' houses to play with a group…certainly loud enough. The cleans are amazing. Had to add an external distortion pedal (got a discontinued ZT Extortion…also amazing!) and now am all smiles.ibrewalot

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

Took them a while, but Boss have blown the competition out of the water with an amp that sounds as great as it is versatile, and provides an amazing platform that’s as at home in the studio as it is in the rehearsal room.Zach G.

Needed this to complement a larger speaker, and it works well. As a guitar amp, it would serve well for a beginner or for practice only.MOLELIMINATOR

The JVM was my first choice for a professional grade amp. Had to rely on internet demo's to choose [music stores in my area do not stock the JVM's because they are expensive]. No regrets after receiving and playing it for a month. Has so many great features like the dual master volumes, decent reverb and a great footswitch. Sounds awesome at bedroom levels as well as turned up. Excellent Celestion speaker choice by Marshall. I also purchased the DSL 40c last year and love it, but I did not like the shared EQ. I was afraid the JVM might not sound much better than the DSL, I was wrong ! The JVM can get any DSL tone and more. A very versatile amp. It has more than enough gain, in fact too much for me. I like the Clean / Crunch channel for my style [classic / Southern rock] while the overdrive channel can be tamed into Marshall heaven. If your looking for an amp that can do just about any tone-this is it. My only complaint about the combo is the knobs feel very cheep with no friction or drag. Like turning a cheap radio dial. That is why I gave it 4 stars. Otherwise the build quality is good. I chose the JVM over Friedman & Mesa and do not regret my decision. It's a keeper.Combo Addict.

I have had this amp for about a year now and i love it!!! This amp has 2 channels each with 3 gain stages and works great with my pedals! On the hottest channel this amp has so much gain you dont even need an overdrive pedal. You can easily get those satch and vai tones out of this amp with ease. Its also very loud if you dont like your neighbors lol! the clean channel is awesome as well you can get extreme pristine cleans out of it. i have 30 plus years exp and picky when it comes to my sound and I tell you this is the most versetile amp in my arsenal. I even have all the settings fairly low and have a great sound. I cant believe the overdrive in this amp when they say there most gain to date they are not kidding well worth the money all though they will most likely give you a better price (though i am a good customer with them and buy a lot from them).GARY L GARY RICH GUITARS

This has a nice look, but thats about it. There is a loud electric buzz regardless of settings, instruments, or cables that is hard to overlook. The controls have little variability. power cord is short. I\d say either buy a big real amp, or a different brand. I miss my behringer and my orange box ampsCujo_rock

I am not a performer or anything like that, but this is probably a great practice amp which is what I use it for. I personally like the sound, be it on the clean side or the overdrive. I have not mastered it yet but I can get the sound I want out of it. I use it in a smaller room, probably 15×15 and it's pretty loud. Is it a beast that'll blow your sox off??? probably not, but look at the spec's and decide for yourself. I wanted a practice amp that had some overdrive and a little power. I think this works greatxxIce Coldxx

I bought this for a child to use with a 3/4 size strat. It is the perfect size for that use. The amp functions just fine, nothing wrong with it. The sound is not impressive on the clean channel but it's useable, the OD channel is not bad. If he wanted to play mostly with distortion I would keep this amp, but he is going to be playing clean most of the time, so I'm returning this one in exchange for a Fender Frontman. If you want Marshall distortion in a small package this is not a bad buy, but If you plan to use the clean channel quite a bit, I would suggest something else. I also don't like the fact that this amp has no bass or treble controls, and you will miss them terribly on the clean channel because it needs them pretty bad. The OD is decent as-is, but the cleans need tweaking and you can't do it.Johnny

Mighty sound in a micro package. And it's not a compromise on a traditional tube amp or head. Lots of options, channels and tonal choices. Build quality excellent too. Check out Bluguitar's YT channel Academy of Tone for all you need to know about the AMP1 and the brand.Reviewed by Andertons Music Co.

Open the box, tested with a Katana 2×12 cab, sound was awesome. Same goes to a Laney 2×12 but sounded much more better. Considering the size of the Amp1, the Nanotube is a real deal. Drives is authentic. Growls like the full tube amp head. Cleans nicely from high to low gain. Tried again with a Yamaha powered speaker and speaker out to a BluBox, cuts through with the band easily. Everyone was so impressed with the sounds. Amazing tones.Reviewed by Andertons Music Co.

Overall: I've been looking for portable, potent, Plexi and then some Marshall tone and kept trying little modelers. Most sounded fine, but I struggled to get them right. I have so many great Plexi sounds…and then some…in my Kemper, but wanted something to fit in a gig bag. I remembered having seen Jack Gardiner's video about this and LOVING the sounds he got. When I played this at NAMM 2020, Hall D was just too loud to really appreciate it. But I remembered liking it. So I ordered it. Wow! Let me tell you, I like it so much I just ordered the Remote1 switch for it to use it for more than just a travel option! This thing sounds phenomenal!More often than not, clean channels sound like afterthoughts. This amp has a beautiful clean channel and when combined with the boost gives you excellent, chimey, pushed clean and Vox-like tone. Henning Paulie had Thomas Blug on and they got really close to his Morgan AC30 style amp. Frighteningly close! Well, it really does it! And the dynamics of this amp are incredible. Even with the boost engaged, I can roll the volume down and clean up the vintage and classic channels nicely! I have a lot of amps. This hangs with the big boys easily. And it takes pedals as well as any big amp. I am so happy I can stop looking for a plexi for my gig bag. zZounds has a great return policy. It won't hurt to try it. But I promise you won't likely send it back. I know I won't. This is a keeper.Randy

What a fantastic amp at an affordable price. Perfect for what I wanted.. The reviews from Andertons were positive and I was really impressed. Was also considering the Katana (another great amp) but chose the Blackstar as i loved the sounds tones it was offering, I preferred the looks, especially in this vintage modern Black tweed. And I wanted something that not everyone else was buying! Top quality sounding solid state amp from Blackstar that works perfectly for me 🤘🏻Reviewed by Andertons Music Co.