Guitar Amp Hum Fix For Sale (2024 Update)

I just completed my Mod 102 kit. An excellent experience! I was delighted with the quality of components, clarity of instructions, and, perhaps most importantly, the sound of the amp. It is very loud – currently running into my Fender Twin Reverb cab (2×12) and very sweet! I will be running it into a new 1×12 cab with a new Celestion G12 M Heritage 'Greenback' when I get a case for the speaker (on order). My only criticism (and something to look out for) is that the chassis is very nicely painted in gray gunmetal paint. Even following the directions to file all the holes, it is very hard to get a good ground connection at every point a terminal strip connects. I worried about this, and about 1/3rd of the way through the build, took an ohm meter to check all the connections, and as I had suspected, some of the connections were not great (9-10 ohms or so!) So I removed the terminal strips (with the components I had already soldered still attached) and scraped away the paint under the tabs of the strips to ensure a good connection. Re-testing showed virtually zero resistance. I'd strongly recommend scraping the paint away at all holes under the chassis before getting started on the build. Even better, suggest that Amplified Parts leave the inside chassis unpainted (at least around the important holes). Aside that one criticism, I am delighted with the kit and with Amplified Parts. Everything was delivered promptly and they are a class outift. I'll probably try some of their other kits soon.vpmerlyn

I spent three evenings building the MOD102. The instructions are very easy to understand and the amp has a great Fender sound. I had one grounding issue that was easily fixed with a little help from tech support, which was excellent. If you're good at following step by step instructions and can solder well this is a fun little amp to build. Only small issue is the labels. They could stand an improvement.Brandon

I just finished this amp build and it sounds fantastic! I also just finished a Marshall 18 Watt clone and I have to say that the Mod102+ holds its own very nicely alongside the Marshall. In fact, I will probably use the Mod102+ for recording because it sounds amazing at lower volumes (the Marshall is loud AF). Honestly, if I were only going to build one of them today, it would be the Mod. I'm blown away by the tone! Great kit with excellent instructions. Great bang for the buck. The parts all seem to be top quality. I love the old style cloth solid core wire, too. I find it much easier to work with than modern stranded wire. The labels are a bit lame but I covered them with packing tape as suggested before cutting them out and they look fine. If you're thinking about building an amp, build this one.danjbeckett

What a great sounding mini amp. I've had to use headphone mini amps for the last 15 years due to time constraints and location of practice area. I didn't want to use the precious practice time I had just to set up full size amp for only an hour or so and then return everything back to storage area. It was so much simpler and convenient just to plug a mini amp into my guitar, put on head set and play. Down side was always the quality of the mini amps I was using. I was getting them for around half of what a vox cost.. I always wanted a vox but they were expensive. After joining mf rewards club and making several purchases I bought my vox for about half price by applying my points to the purchase. I should have never waited. This vox is 10 times better than the cheaper brands. As soon as I opened the packaging and held it in my hand I could feel the quality. When I first plugged it in and started playing I got really upset. Not at the mini amp but at myself for waiting so long. I highly recommend buying this mini amp. Trust me. It's really worth it and you'll be glad you did.Horn

Cannot praise this device highly enough. It sounds great, and is ridiculously versatile for such a small device, comprising not only Gain, Tone and Volume controls, together with three levels each of effects options Chorus, Delay and Reverb, but also Clean, Crunch and Lead. Two AAA batteries are required (included), and give hours of usage. Just plug it into your guitar, attach headphones (decent pair of over-ear type are best, but don't need to be expensive) and, if wishing to practice over a track by your favourite band, simply attach an appropriate device such as a tablet or 'phone. If you require to free your amPlug2 sound from the confines of headphones, Vox also offer a mini, 2 watt, amPlug2 amp/speaker to which you attach your amPlug2 and play out loud (but not loud enough to annoy the neighbours. The wonderful Vox 50 watt amp/cab stack Mini Superbeetle Audio blue tooth speaker also doubles as a guitar amp, complete with amPlug2 compatibility, but at full volume, this would definitely annoy the next door neighbours, and possibly those further afield. The amPlug has given me new found freedom to play and practice without needing to wait for opportunities where it can be done without audibly intruding on the personal space of others in the household. I have subsequently invested in the equally good Classic Rock amPlug2 (and which, on balance, I prefer), together with both the aforementioned Vox Mini amPlug2 cab/speaker and Superbeetle Audio blue tooth amp/speaker stack. Basically, the freedom afforded by the amPlug2 headphone amp has reinvigorated my love of guitar playing, and I try to squeeze in some practice time on a daily basis. I even felt enthused enough to unnecessarily treat myself to a new guitar. This amPlug2 is real value for money, but it has inadvertently cost me a small fortune.johnclark1954

I use the box on my triton hooked to my interface to my G-5 I have a lot of racks and wires I had a hum like B52's I plug into the clean box 11 silent is truely golden. It work for true.Bobby Q.

J'ai acheté cet appareil pour un problème de parasites entre basses, mais celui-ci persiste quand-meme. Peut un problème sur une basse ?YVES

I was really surprised at how good this amp sounds. Years ago I tried Line 6 and was not at all happy with the tone; but this is another story. It does take me awhile to dial in a specific classic rock tone, but when I do, it sounds better than any other amp that I've tried. I have tried the Marshall Code, Blackstar id Core, Vox Valvetronix, Boss Katana; as well as some all tube amps. The only other amp that is a close 2nd is the Fender Mustang GTX; also a great amp. The Spider V is fairly easy to operate. It offers lots of choices for amp models and cabinets. I like that it has variations of a mic'd cabinet. The parametric eq is a plus. I haven't played around too much with the effects yet, so I can't comment on that. The only negative thing I could say is that when you're editing a preset and want to hear how it sounds before you save it, you only have a short time before it goes back to the Home Screen. This really is a small price to pay for the quality of the amp and all the versatility it has. I like the App too. Musicians Friend got me a great on this as well; and their agent is following up making sure that I'm satisfied. The funny thing is that I came across this by accident. I placed an order for a Peavey amp that was on back order. I called Peavey multiple times, but they never returned my call. I also emailed them, but they didn't respond to that either. As far as I'm concerned, Peavey doesn't have any customer support.crrkr

Been playing about a year, so my review is from the perspective of a complete newbie. The things I like- Lots of presets, mobile app functions, computer interface, and loads of user created effects available. Nice and loud, but no real basis of comparison to say if clarity is better or worse than other comparable amps. Don't likes- The micro-usb interface. I had to get an adapter and it's just not as good a connection as nearly anything else would be. IMHO, micro-usb is far too flimsy. Connecting to PC is far more problematic than just using the spider mobile app. It's probably a little more complicated than it should be for a beginner, but it's feature rich for the money.Nic T

I had a Line 6 120w amp for years that I regrettably sold a while ago and was looking for another amp. I looked at all the amp reviews I could find and decided that the new Katana was the way to go. I got the Katana home and absolutely loved it but the second day I had it it started a really loud buzzing that I couldn't stop. It probably was an easy fix but the fact is the amp was way too powerful for my purposes and their software wasn't compatible with the new Catalina OS. I returned and started looking again. I saw the 60w Spider V and the price was excellent so I made an on the spot decision to buy another Line 6 and I'm really glad I did. The tones this amp can get are incredible. There are so many amp models and cabs that you can dial in pretty much any tone you want from a crispy snapback country clean to the most vicious heavy metal and everything in between. You can use the presets as they are or you can use them as a baseline and tweak to your own liking or you can start from scratch and build your own rig from the ground up. The controls are intuitive and easy to use but there are some features where you'd have to be a professional to really know how to use or even care to use. The software and the mobile app are so easy to use and give you all the options at your fingertips. The amp comes with a lot of presets that I find are completely useless but there are a lot that are excellent as I already talked about. There are only four empty slots for your own custom presets and I wish there were more but if you use the mobile app you can have your own tone library on there. I bought the FBV3 foot controller so that gives me a lot of flexibility to have various effects. One of the limitations is the lack of good effects though. There's enough that if you work at it you can get a decent sound but there could be some better ones. Overall I would recommend the amp. Don't listen to the naysayers or the amp snobs, it's a quality amp and extremely versatile.Just Plain Joe

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

So far so good. A little hot with active pickups, def functionally. Appreciate the aux in to feed music or backing track while practicing and very portable. Worth the price.matta2z76

Had my reservations about buying this, a cheap headphone amp, as I have had others in the past and the o/d or distortion always sound awful. Don't get me wrong it isn't replacing my Marshall amp, but for a really portable and handy headphone amp it is great. I can use this, and move, whilst the kids are in bed, no more having to be 2 mtrs from my big amp….. As a practice and experimenting tool I love this!gastall1978

It's better than expected, though the design might not compatible with some guitar models. It requires an AAA battery. Works pretty well with any headphone. It also has an AUX port so that you can plug and play any songs you like and jam along. Thumbs up from me!wamin0

I bought this amp to use in a limited space and at a low volume for very low cost. It obviously doesn't compare to a normal size amp in quality but for being a practice amp it is perfect. Many reviews across the web say it loses power or sounds bad after a short time, but its literally as simple as changing the battery in my case. The manual even says to change the battery if there is an issue with sound, and the battery that comes with it isn't really the best and doesn't last long. It has great sound at a low and mid range volume for the little power it actually has but when you ramp it up it does sound a little distorted but not bad at all for $23-$29. Hopefully my review helps someone get a decent product!Lucas

While you certainly could use it in the studio for certain alt/auxiliary tones and/or layers and achieve fantastic results (producer/artist discretion advised), It's not meant for that. It's meant purely for being able to enjoy playing electric, untethered, while wandering about randomly and/or practicing. …Whether outdoors or indoors. …At home, in the park, around the neighborhood, at a camp site or a BBQ, wherever. Perhaps even during your breaks at work. It's not meant for playing in a full band situation (especially with drums), nor is it meant for getting a half-stack sound (or even normal combo-amp sound), for a fraction of the price, during a high-end studio session or full-on concert. It's a fantastic tool, meant to serve a single purpose. Choose and use your tools accordingly.Cristyn, E

mini-amp works great as a travel amp, or playing early in the am when ppl are sleeping lol it fits perfectly inside my hardcase, along with my electric guitar, headphones, tuner, cables, etc. performs as expected.. dont look to be amazed at its performance lol but for practice/travel its the perfect amp. has a heavy grind for chunky metal riffs. doesnt pick up the p[inch harmonics that great, but they do come through. the clean setting is great, too, and for a tiny little fkr it really kicks pretty good! had my finacee yelling at me to "turn that fkn thing down!" so, lol, it hits pretty hard for a small little guy.. but like i said, dont expect it to put out the tones of a line 6 spider IV or a Marsall half-stack cuz it aint capable for that. it isnt designed for gigs lol so dont expect that kinda sound. but, i love this mini-amp; its my new best friend!da.davc.mcoumykeiu

I picked this up for my son so he could practice around the house. Killer stocking stuffer! When the son is away the dad will now play. I started playing my Mustang Bass through this and it did the job. It's a small amp, not a practice amp. This is perfect for camping trips, rocking at the office or kicking it in the backyard. Oh yeah and you can plug in 1/4 headphones and keep the concert to yourself. It runs on a 9-volt battery or you can plug in a 9-volt adapter.SERGIO

Took a chance on this and purchased it without every playing it. Watched video reviews on it and gave it a shot. Yes, I know that it's small in size, smaller than a kids lunchbox but I hoped it'd produce quality sound and what I got was muddy sounds at increased volumes. It's not clear sounding and my goal to play through an amp is to sound good and I felt if I actually played this in front of people, the muddyness would make me sound amateurish. So, for what you pay for this, yes, you get amplified but it's not real great quality, unless you're a metal player because you don't get a clean sound from this. I rate this 3 stars because it's convenient to have a portable battery operated tiny amp that you can plug into and get sound from, however, the quality almost makes you not even want to play it.Jesse

This ain't no micro cube or vox. This less than 20$ & runs on 1 9v battery or 9v plug in the wall.(transformer not included)& Holy Friggin' Smokes does this baby perform.Monster overdrive tone & super bright, clean tone.Headphone input.Probably exceeds 60 decibels,which is beyond city ords. could get U a fine it's so damn loud. My Strat Squire sounds soooo Fender good out of this lil sucka & my electric/acoustic, sooo crisp.Ultra light to carry around.I've been using the JOYO mini,I love it,plug in,no chord,fun but this Fender mini is a bit more.More tone options and louder.I've yet to find out how quick it eats batteries. The JOYO burns them up fast.Get the rechargeables.Also the JOYO has an MP3 input.This doesn't. I run guitar strap thru the handle so the chord is like non-existent or U can old school it and have a 10 or 20 ft chord.So light it can be pulled over by the chord.These mini amps also pick up radio signals. When I turn them on I can hear radio stations at certain angles. So get 1 for the road.It's all about the fun.annoyingted1

It is a great amp. Very good sound and options for the price. It is not heavy which is a big deal to someone who has had back surgery. I gave it a 5 in spite of one big complaint. When you turn it off you hear a loud "POP!" Wow, is that loud is what I thought the first time I heard it. I read about it online and there is a simple fix. Find an old set of ear phones or ear buds that you would use on a cassette player or a Sony Walkman. (Yes, these are ancient electronic relics from the past for you younger people. You might ask your parents if they have a cassette player and borrow the ear plugs.) Just plug that earphone jack into the "PHONES" input BEFORE you turn it off. THEN you only hear a little blip when you turn it off. THEN just pull the jack out of the "PHONES" input before you start it next time.chasmigu

This amp is better than I thought. I've had it for over a year. I use it for practice sessions (classic rock mostly), and I haven't gone over '4 1/2' on the volume (it does give good feedback if you want it). I did upgrade the speaker to a 12" 'Celestion' Vintage 30 and am absolutely happy! This could easily be mic'd for larger venues. Lightweight, powerful enough, and the effects are a good assortment. One small glitch…when using the footswitch, there is a short, instantaneous volume boost when the pedal is pressed for distortion. Could possibly be a problem for recording. Besides that, 5 stars for me.Myk

After playing acoustic guitar for 15+ years and rarely plugging in, I finally decided to make the plunge and try out an electric. I was advised by a buddy to not buy too big, that 15W-20W would be plenty to practice with. So, I found this little Champion at Sam Ash, and so far it's been great! I bought the display model and have had no issues at all with it. Great sound, enough presets and effects to play around with, and sounds great clean too. Having a blast and loving it.Nate-O

A nicely presented small light amplifier, the problem is that the sound is less than perfect and the volume is very low for a 10 watt amplifier. I have gigged in small venues with my Yamaha 4 watt amplifier, this amp would be lost in the background if anyone spoke. I am now using this on an electronic drum kit and it is adequate for home use if you don't mind the noise of your sticks occasionally drowning the sound from the amplifier.the_astrologer

For the price you cant go wrong, not the greatest sound quality but good enough for an 8yr old boy to attach to his drum kit, more than happy with my purchasealemill_46

Got this Amplug Blues today plugged it into my Strat and it sounds great! and I highly recommend it! Now is it perfect? the answer is the usual NO. I think it can be improved on as follows. 1. Put a little color on the dials… the plastic is all black and the plug can rotate to different orientations. Would really be nice to have the dials stand out better with different colors. 2. Change the AA batteries to USB rechargeable Lipo battery. No reason to burn batteries when you can recharge! 3. My main change request is to have Bluetooth Audio In because you plug in the Amplug and then connect headphones (great for practicing). But to add audio to jam to you need to connect another cable to the Aux jack. So for me it just get's to be too much. Since nearly everyone has a smart phone it would be great to use Bluetooth for the Audio In so you can wirelessly play jam track and stuff without needing the 2nd cable. But it does sound really good and I'm keeping it!Harpster58

I regret, that I was mistaken in my previous review. I had claimed that the sound was great – but, that some functions were missing, after about a month of use. That is not true. I re-read the slightly, confusing, manual. The unit itself is – slightly, confusing* – but, it does work the way it is supposed to. In fact, you have a serious selection of effects – at least, three levels, of each one of, three effects – far more than other units in this category of headphone amplifier. The sound is incredible – the thing's got, big, b*alls! – and that, in itself, is worth five stars. Amazing job!
*The effects are split by two different buttons at two different ends of the unit, which makes it a bit uncomfortable.Dale Alan Bryant

I have been playing large venues and outside arenas for the last 30+ years. I have a yearly show for a very small but upscale outdoor venue. The hum at this venue is terrible. I bought the Hummex to try and reduce the hum from my Marshall 1/2 stacks. It did nothing short of waste my time effort and money. I tried it in one of my recording studios and again it did nothing. Do not waste you time and money on this useless device. Its only made up of 15 cents worth of parts. Nothing but a complete ripoff.remaster-0

I got the hum X hoping to reduce or eliminate hum associated with having my amp (a Lunchbox zt 200 watt solid state) plugged into a a Goal Zero Yeti 150 combination battery/generator to play live where there is no power source. I'm an experienced player, but I have very limited knowledge of electronics. This product did nothing to reduce hum. I removed all effects, plugged the amp directly into the hum X and the hum X directly into the yeti 150 and then compared that with plugging the amp directly into the yeti 150. No noticeable difference. It's not the amp. I don't get the hum when the amp is plugged into a wall socket in my house, which is properly grounded. Apparently, the hum X was not designed to deal issues associated with battery powered generators.JettPowers

The Ebtech Hum X does just what its supposed to do – cancels out the (almost always) Laptop AC Ground Loop Hum! Anytime you have a Laptop Computer within your loop/chain/board configuration, you can (almost) always count on having an "AC Hum" which is (almost) ALWAYS caused by the Laptop's external AC direct-connect Power Source/Transformer. Its easy to find out if thats your problem. Simply remove the Laptops external power cable, run the Laptop on its battery power source and "listen" for the hum to go away!!! If it does, then you know you definitely have an AC Ground Loop problem with the external power source.! Simply plug the Ebtec Hum X into your UPS/Regulated Power supply Output jack and then plug the Laptop's external AC cable into the Ebtec Hum X done deal! When ordering up the Ebtec Hum X, dont forget that there could be "other additional power-hum problems that need addressed. If thats the case and you still have other hums, checkout the other tips I have listed elsewhere in this review. Remember, very rarely does one piece of equipment handle everything. Note: DJ's have had this same (Laptop in configuration) problem for years and are amazed how such a simple plug-in device like the Ebtech Hum X eliminates the situation Since Ground Loop Hums seem to always be a problem, one piece of equipment normally does not handle them all. You need to isolate, in your configuration, just what piece of gear/cable is creating the "hum." The first place I would start (and install/place hum unit) would be at the Amplifier using a Dual-Channel type Hum unit (Nady HE1 or Ebtec). Connect the individual Output cables from your Pedal Board/Mixer and Guitar to the Input side of the (Nady HE1 or Ebtech Hum Eliminator) unit; Connect the Output of the (Nady HE1 or Ebtec ) to the Amps Input channels. Note: Make sure you use superior quality grade TS patch/jumper cables for connecting here (Hosa or DiMarzio are great.) Also, don't forget to check your Mixer XLR/Jack connectors for any added "hums" that maybe present. If this is the case, another solution is using the Ebtech HE-2R. This unit will handle 2 channels each of both your TS & XLR cable runs. Dont forget to inquire with your sales rep about purchasing/including within your configuration a good Regulated Power source commensurate with the equipment/pedals you are using in your overall configuration. They are a definite safety net and, will add years to your equipment by providing good, constant, clean power to your systems configuration. All of these mentioned units are of great value to your configuration considering they all do just what they are suppose to do. Yes, they are going to cost you a little extra cash however; sometimes these extra expenses are necessary in order to fix the problems. Pricey? Not really considering what you'll receive in the end – "Better Quality Sound" and isn't that what its all about??? As we all know: "if ya' wanna' dance, ya' gotta' pay the band." Good Luck! Please see "Overall" review for complete comments. Please see "Overall" review for complete comments. Please see "Overall" review for complete comments.Skip

What a cool little invention for any guitarist to buy for themselves, or what a cool gift! This ultra-portable and kitschy stick-on speaker is a must-have for any guitarist. It is rechargeable and can last up to 3.5 hours on one charge, they look really neat and the sound produced is so surprising! I am honestly surprised they are as affordable as they are. This is a no-brainer gift for the guitarist in your life.Lady Landa

This thing is so cool. For a little speaker, it sounds incredibly good, and Im glad it has effects. Its fun to take my guitar out to the yard and just be able to jam away and have it sound decent. And its definitely loud enough, sometimes too loud, but you can control that from your guitar volume. My hats off to the guy who designed this!radius9999

Product works as described, really nice tone for what it is. 3 stars only because the model I ordered was different, I received the Heavy Metal Model, includes phase instead of Chorus. Also the grill is chrome instead of blackempo470

I recently completed the British 18W head kit from Tube Depot, and can't say enough good things about it! From start to finish, the kit exceeded my expectations. Ordering, shipping, and customer service were top-notch. No issues with components. The instructions and documentation were amazing, worth their weight in gold. The end result was an amplifier that sounds incredible! I incorporated a few of the suggested options- PPIMV, Tremolo HI/LO sw., Tube/SS Rectifier sw., and choke. The sound is amazing, I'm finding it very difficult turning the amp off- once I start playing through the amp I don't want to stop. I would absolutely recommend Tube Depot for anyone interested in building a guitar amplifier. The clear, well-written instructions really made this an enjoyable project. This was my first amplifier build, and I had no issues thanks to the great documentation.Dave R

I ordered this kit with a mod to use KT 66 power tubes. The changes were easy to make and it sounds fantastic. The classic JTM 45 tone at a manageable volume level with the master volume control. Just to test it out I've used a power soak and the tone is exactly the same using the master volume. A couple of real nice features of the design are the negative feedback switch and the ability to switch between solid state and tube ratification (the tube sounds better to my ears). Great product!Clint

I bought this amp to have a small, cheap portable amp to play harmonica through. For that, it is decent enough. I use a Shure bullet mic and the amp produces good enough tone and is plenty loud for practice or small gigs. When I plug my tele into it the clean channel is decent and clear, but the overdrive channel is junk and hurts my ears. I would rather run the clean channel and use a fuzz or distortion pedal. So that being said it is decent enough to practice licks on and it is tiny so it tucks away easy. If you look around you can find a bigger amp with more features used for the same price but if you want a new amp, this one is probably worth what they charge for it. I would only buy it if you have a specific purpose for it though.Roy

It's small, and pretty portable. However, the sound quality is trash, given the speaker is tiny, but the overdrive is just horrible. If you buy this, try returning it. If you can't return it, just get a fuzz pedal and leave it on clean. Imo, just buy the mustang lt25-50Hotdog Games

Going back and forth between the LT25 and LT40s to compare identifical presets, both sounded good and similar even with the differences in cabinet and speaker size. A subjective impression is that the LT25 sounded a bit more distant or maybe dispersed. The LT40s sounded a bit more focused. It was a tough call as the LT25 is less expensive but I walked out of there with the LT40S. For desktop placement and low volume practice, the LT40s sounds great and with plenty of low end. I don't need loud volume but this amp can fill a 16'x24' loft with sound. The USB connection to my laptop was initially a no go. After deleting and then reinstalling the application, it has sinced worked great!Wally

I wanted an amp for practicing that gave me a massive range of options for a reasonable amount of money. I have to say that I am very impressed with the 30 included presets and I've not even branched out into the additional ones you can add. The quality of the LT25 is fantastic, not super heavy and all the switches feel robust. I've found the sound can vary depending on the preset you choose though that is to be expected with those that have high gain. I mostly play clean and blues and this amp is fantastic for both of those. If you want a more classic rock sound there is a preset for this which I think needs a bit of tweaking. All in all very impressed and as this is my first Fender amp, I will definitely be getting another in the future.Alex G.

I bought this amp to have a small, cheap portable amp to play harmonica through. For that, it is decent enough. I use a Shure bullet mic and the amp produces good enough tone and is plenty loud for practice or small gigs. When I plug my tele into it the clean channel is decent and clear, but the overdrive channel is junk and hurts my ears. I would rather run the clean channel and use a fuzz or distortion pedal. So that being said it is decent enough to practice licks on and it is tiny so it tucks away easy. If you look around you can find a bigger amp with more features used for the same price but if you want a new amp, this one is probably worth what they charge for it. I would only buy it if you have a specific purpose for it though.Roy

It's small, and pretty portable. However, the sound quality is trash, given the speaker is tiny, but the overdrive is just horrible. If you buy this, try returning it. If you can't return it, just get a fuzz pedal and leave it on clean. Imo, just buy the mustang lt25-50Hotdog Games

The good: small, portable, can run off batteries. The wireless connectivity is really nice. Sounds decent for what it is. The bad: The interface on the unit itself and the app are confusing to say the least, and you are pretty limited in the use of effects. The ugly: all those free Katana patches being posted on the Boss site? Incompatible. All the patches for regular Boss Katana amps WILL NOT WORK on this unit. Thanks for that Boss.Alexander

Overall: I may be mis-reading the manual but I've yet to figure out how to keep the wireless transmitter charged. I'm not new at this having gotten Line 6's wireless transmitters when they first arrived on the scene. They were easy to use and worked as advertised. While I am a huge Roland/Boss fan, I'm thinking they may have missed the mark in the "ease of use" category on the Katana Air. From a sound perspective, the amp, when plugged into a wall socket sounds great; just what you'd expect from a Katana amp. And when the transmitter is fully charged, the same can be expected. The problem arises when trying to figure out how to keep it charged. When running the amp on batteries only, this seems this seems to be problematic in that the amp stops charging the transmitter when the batteries are low. The problem is you don't know the transmitter is dead until you try and use it.My most predictable approach is to plug in the amp with the provided DC cable and do my charging while the amp is "hard-wired" to the juice coming from a wall socket.Once the transmitter is fully charged, in this manner, I can disconnect the amp and run it on a fresh set of batteries. This will afford you a "temporary" wireless operation. The transmitter that I received didn't have any where's near the claimed lifespan. I'd be curious to see how other's experience with the Katana Air played out. I will keep fiddling with the KA and if I discover what it takes to make it truly wireless, I'll get back to you in a follow up review. Strangely I did keep this item, hoping for a downloadable software cure.There is a nice free ap that accompanies the KA…..It allows you to change all of the amp's audio settings and to download free patch sets. This works well with my iPhone 7+.Martin

I've been seeking a modern, portable, reliable practice amp that can satisfy BOTH Acoustic and Electric guitars since Line 6 introduced their Amplifi series. I loved the Amplifi's techie saturated concept but no matter how bad I wanted it to work… it was always a low-fidelity 'noise' amp first without the ability to produce clear, hi-fidelity sound for either my acoustic or classical guitars. Designing an amp that can accurately reproduce hi-fidelity, low distortion sound begins with a good designed, quality build and above average components. As the old proverb states, "You can't make a silk purse out of a sow's ear", you can build a noisy amp but don't ever expect it to reproduce quality sound. Amplifi is the sow's ear. I thought about testing their newer Amplifi 30 but after many bad experiences testing a 75 and reading that I was not alone … I lost all confidence that they could do HiFi right. The Katana Air checks many of my must-have boxes and it worked without a hitch. It was designed as a small practice amp and not a single solution for all your gigging needs. Adding in the convenience features like smart-on and multiple wireless features that include power/updating/tuning/modeling/backing tracks/guitar, makes this the practice amp I have been waiting a long timefor. Finally, I can take an amp sailing without worry of 'butt cleats' or adding more hazardous lines to my boat.pete1tod

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

It is with a somewhat heavy heart that I write this review. I have largely used fender amps since the mid to late '60s, with a few deviations along the way- Sunn, GK, Marshall etc, but I always returned ' to the fold/fender.' I made the decision a year or two ago that if I wanted to keep playing out, I would need something that I could lug around a bit easier. 45 years of schlepping and humping gear has unfortunately taken its toll, and to continue means getting something smaller and lighter, but being self admittedly narrow minded and optionated, I did not want to make the slightest compromise in tone or usability. Enter Egnater. I was marginally familiar with the brand, and they were recommended to me by a colleague with much passion. After spending some time checking one out while my son lost himself in the magical world of various vocoders, I decided this was a serious contender. After putting in some overtime during the holidays I used the fruits of my labor to pick up the tweaker 40 head and matching 112x cabinet. This was absolutely the right choice for me. The number of usable tones at my fingertips, the portability, it's all there. Great headroom, plenty of sparkle on the high end if desired. I play in a classic rock cover band and this amp allows me to get close enough to classic tones that I doubt anyone will demand their money back because of the way the amp sounds. I love the versatility, and the shared eq and amp voicing does not bother me near as much as I was afraid it would. From dynamically responsive breakup to crunch and grind, its difficult to ask for any more at this price point. At he onset of my search, I was really wanting fender to make a deluxe reverb head, complete with reverb tank and tremolo (are you listening fender?) but dismissed that notion as fantasy. The lack of reverb and tremolo is not an issue due to the extremely usable efx loop, complete with line or instrument level options. Very nice. It takes pedals nicely and can handle all but death metal chores. Leaving fender behind after all these years for this amp is… Different. With a lesser amp I would care more, but make no mistake, this is a great variation on a tried and true circuit. Try it. Don't be afraid to listen to your ears.Oldenkrusty

Overall I'm very pleased with the amp, and I don't see any need for anything else! This amp will do everything I ask! There are only a couple downsides in my opinion. Both channels are exactly the same. I guess if you were playing only clean or distortion it would be nice to have the ability to set up two clean channels or distortion channels but I'd prefer one channel have a little more gain to really allow you to go from country all the way to metal. The EQ knobs are shared by both channels as well as the different amp model switch. I really like the Fender section for clean but marshall for crunch but I'm stuck picking one or the other and having to sacrifice. I'd like to see a seperate amp switch for each channel. Honestly it only takes a second to reach down and flip the switch but during a gig it's a pain. Seperate tone controls really aren't needed since you can seriously dial in your sound simply with the toggles. Realistically if you even eliminated the different amp models it would still be a fantastic amp and sound great compared to anything out there. And the name "Tweaker" totally fits, I find myself constantly trying new sounds and combinations of the toggles and knobs! I'm really having to nit pick to put this thing at only a 9 rating overall but it would have been nice if they put the amp model control seperate for each channel. This thing is louded with tones! I'm playing it through a marshall 4×12 cabinet. The mini-toggles really allow you to change the color of the amp, most of the time the actual EQ knobs are just for fine tuning. I'm playing Gibson Les Paul's with P90's and Humbuckers. The amp really won't dial in a bad tone, it's really amazing! The variety of clean tones you can get are great. I find myself mostly sticking with the fender setting for most of my cleans and the marshall model for my distortion. I mostly find a sound I like and stick with it but this amp is capable of many different sounds. What's nice is it will really sound different with different guitars. I like to find a good sound and leave it alone and you can really tailor it to your guitar. The distortion will do anything up to classic G&R stuff and 80's metal. You'll likely be dissappointed if you're looking for heavy metal and super gain. Although there is more than enough gain available look to something like a Jet City or Peavey 6505+ if you mostly play heavy stuff. I did find you can plug in an overdrive to push the amp near that territory but it's really not designed for heavy stuff. What this will do is simply everything from crystal clean sounds to hard rock and everything in between. It's plenty loud for any situation and still sounds great at bedroom levels as well! So far so good, I don't see any concerns. There's no humming or hiss when it's turned up. All the controls work great and there's no pops when flipping the switches. I'll have to see how it holds up in the long run but it's great so far! Value wise it's as good as anything in it's price range. It's nice to have two channels and comes with a solid footswitch that will toggle the effects loop as well. The power is more than enough for most gigs and practicing and it looks very nice compared to all the plain jane amps out there.Freddy-jXzod