Electric Guitar Amp With Mic Input For Sale (Jan 2023 Update)

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

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

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

I bought this amp based on the good print reviews and the way it sounded in you Tube reviews. I did a lot of homework and finally placed my order. I was excited when it showed up at my house and plugged my Jay Turser Les Paul copy right in. Boy, is this thing dark! I turned all the tone controls to 10. I changed the strings. I removed the covers from my pickups- that just made it dark and tinny. After three days I decided that I had to either send it back or make some changes. I took the speaker from a Squier 15 amp and installed it in the Bugera. Right away there was more life and clarity to the sound, though it still sounded tinny (because it's a speaker from a Squier 15), but it was some progress. Next I pulled tubes from a circa 1959 Curtis-Mathes console stereo and swapped them into the Bugera. Now we were getting somewhere- the overtones, the reason we use tubes, were now present and accounted for. The same console is full of Oxford speakers, which are a Jensen knockoff and well respected. I took an 8" from that and installed it in the V5. OH YEAH! Now this is a great little amp. The clean tones are super sweet, clear, full and bell-like with tons of sustain. The overdrive has a huge range of grit, and the reverb is better than any other amp I've had. So after installing a set of +/- 60 year old tubes and speaker, it sounds great. But out-of-the-box stock, I would have sent it back, no question. If you have a too-bright guitar or are willing to make upgrades, this amp is a super value. My one complaint about build quality is that the wattage selector switch is extremely touchy- it goes from .1 to 5 watts and has to be fiddled with to get it to stay on the 1 watt setting.Farmhand

Perfect at home tube amp. I generally use 1 watt mode. Great tone whether clean or breakup. Loves my telecaster and Boss BD-2 into it, and takes pedals great in general. Couldn’t get over how nice it looked when I unboxed mine, either. Beautiful looking amp on top of sounding great. Really an incredible value. Can’t recommend this one enough if you’re looking for a home use valve amp.Grandaddy Jeff

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

I really like this amp. I bought it used at a really good price, so I was very pleasantly surprised at how nice it sounds. It has loads of power and nice tone. I bought it as a practice amp, but I wouldn't hesitate to use it on stage in a small club.voltyr

THE 8 INCH SPEAKER IS ALITTLE WEAK SOUNDING ,CAB IS BUILT WELL, EFFECT ARE GOD THE ACTIVE EFFECT IS REALLY KOOL SOUNDING,WELL WORTH THE 100 DOLLARS I PAID JUST NEED TOO UPGRADE SPEAKER SIZE TO A 10 INCH!!PAUL

Fantastic amp for the price! The clean channel is great, and has time delay effects that is unexpected for an amp in this range. The overdrive is excellent too, and you can control different frequencies as well. It also has two inputs for guitars, and a microphone input! So you can jam with friends and sing along. At 40w output, it is pretty loud. If you are in the fence, get it! You won't regret it!integrationbyparths1

While it may not have all the bells and whistles that higher end amps have it's loud and clear it does a good job for what it is. It's well worth the money.tomcat8476

'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

I was excited to procure this battery/ac amp at a fair price, so I bought a used one listed as "great condition." These amps are hard to find on the used market and ZT told me in an email production has ceased for this model until Q2 2022. The amp was indeed in semi-great condition except for a small puncture in the foam of the 5" speaker which buzzed. Quality control was obviously lacking as it's noticeable while playing the bass strings on an electric guitar irrespective of where the ZT's tone control is set. Accessing the speaker simply requires removing the grill without tools and applying a bit of speaker glue to the damaged part of the cone. I did it myself instead of returning it to GC, which I would have pondered if ZT wasn't horrendously backlogged. These amps sound stellar for home, busking, or as a personal stage monitor. I have two of them for a stereo pedalboard and Rick-O-Matic guitar. I have a DI on my pedalboard. I wouldn't mic the ZT. Conversely, the active tone control has excessive bass for the small speaker to handle, and I suspect many amps result in ripped cones if played loudly with the tone control at less than 12:00.Ed

The sweet analog tone coming from this little guy really inspires me to play & practice. Great cleans but the real surprise is it has the best grind of any solid state amp I ever played when pushed. This amp reacts very much like a valve amp. I owned a 200w lunchbox and like the tone of the junior more.tony f

I was well aware of the dimensions of the thing before it arrived, but opening the box and actually holding it is still pretty shocking. I found it to be small on a scale that it left it hard to believe that it would be functional for more than a practice amp. I accepted that the small size could be handy but expectation of sound quality was suddenly diminished. I stand corrected. The sound is excellent. It is definitely more than a curiosity that is smaller than a breadbox. It will put out a substantial amount of volume with a substantial low end range that was a tremendously satisfying surprise. For my modest needs, it far exceeds my expectations. I would like to note, for jazz guitarists I think you'll find this to be a surprisingly versatile and capable tool, not just a toy.Bliss

Based on a friend's recommendation, I purchased a new Boss Katana 100 MK 2 in June 2021. The first thing that impressed me was it's power…it seemed to be a real 100 watts in a portable and lightweight package. I was able to dial in some useful tube-like tones right from the start with the clean channel. The Katana warmed up quickly to single coil or hum bucking pickups. The tone "variations" are also very useful for dialing in the right sounds to your liking. The delay adds the right amount of sparkle to your overall sound…very cool! Unfortunately, I was not able to get much help from the Boss Tone Studio when I downloaded it to the amp. (The response was: "Amp not connected"). Another disappointment is no Boss Tone Studio for iOS users…really guys? The required Boss foot switch is another issue…look online to see pedal "hacks" that use standard one-button or two-button formats. (Save a few bucks with a regular pedal). All in all: I'm very pleased with the amp. The line-in is a great feature to use with backing tracks along with the headphone jack for late night practicing. The basic amp tones has a realistic tube texture that reminds me of Marshall, Fender or Vox models.Scotty, M.

I have had the 50 watt for several months which is a great amp, but decided I wanted more foot switching options provided by the GA-FC controller. I figured if I was to buy the 100 watt it might as well be a 2X12. The 100 2X12 sounds awesome. And it is really loud to play at home even on the .5 watt setting. I'm tired of messing with tube amps and effect pedals so the Boss Katana series is just what I need. I have not dived in to the software and deep settings on either amp yet. These are apparently had to get. SAM Ash had it on backorder from Boss. The web and phone support at SAM Ash is great. Chris from phone support helped me complete the order and was super knowledgeable and helpful throughout. He even called me back a couple of times to update status and follow up once it was delivered. Oh… And the 2X12 is way heavier and bigger than the 1X12.Pupster

This Amplifier is all I will ever need for my electric guitar. I love the sound! I have to be careful with my neighbors as they can hear it and I don't have it turned up that loud. I am 58 and don't like things that loud but when playing I might get a little louder than normal. It has a lot of different settings and I pretty much stick with a basic sound. I thought it was a great price for a quality amp. It fits nicely in my small room.wallyjc

I had been reading a lot of good things about line6 amps so I decided to give one a try. Let me tell ya I'm glad I did. This thing sounds great and has some cool efects. I would recommend to every one that is looking to buy a new amp to give line6 a try. You will not be disapointed!turkeyhunter-2012

This one has gone end of life – but new at a great price, this amp is killer. Great sounds and tone. Super loud volume. I bought footpedal separately to control it remotely – a big win. Glad I go this to play with!zappajesus

This could be one of Line 6's most awesome products to date. I needed a good practice amp for in-home jamming and lessons I could take with on the go. I wasn't expecting much from the built in settings, but there are 5 amp models (including acoustic), basic effects and even a distortion pedal noise gate and tuner LED integrated. The headphone jack and guitar, aux and input are useful as well. Probably the best feature is the battery powered option which allows you to go mobile for jamming in the park or just not dealing with being plugged into the wall. Some downfalls however include some need to roll back the sound channel when switching models (followed by a pop sound), and a few other minor things. Some people complain about Line 6 sometimes stoic amp models, but they work here because its a small form factor, inexpensive and the expectation isn't much. I only briefly checked out the portable amp models market, but this is got to be a great amp for starters or even serious players that want to improve or have some portability.JZman

The Micro Spider III is my first amp and was just lucky that this was the practice/portable amp sold at the guitar store that sold me an Epi Special II guitar a year ago, because one week later I was starting an intro guitar class with a dozen acoustics and (not knowing what I was doing) it only took me minutes with the acoustical setting to dial in a comparable sound! Within 2 months, I bought a MIM Strat and now with these three items I can play just about any sound from Buddy Holly to blues, to surf, to Jimi, to Black Sabbath!!!!!!! With settings from clean to metal, crunch, and insane and 3 adjustable modulations and 3 adjustable ambiance effects, not to mention all 3 EQ knobs, I'm still finding new sounds and I practice up to 4 hours per day! I crank it up in my cabin and outside and can keep it very quiet in my apartment in the winter with mega hours on it and no issues. The 4.5 for quality is due to the not so great built-in tuner, that I quickly bought a Korg tuner to assist my learning ears. Now that I have experimented with all sorts of genres, and now an intermediate type of player, I'm defining my specific sounds that I want to specialize into the future much faster than I could have possibly dreamed of… basically because of the wide array of music I can play with this amp!!! Thanks Line 6 for an awesome product like this. I'll never be able to play a tube amp quietly or out in the woods, so this is a keeper. BTW, I found an insulated Igloo cooler that the amp fits in perfectly for traveling and a car adapter for running off your cigarette lighter socket. Wow!!!!!!!!ObsessedGuitarPlayer

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