Summary: What a cool little practice amp. The sound is plenty big enough for sitting in your room practicing and there is also a headphone jack just in case you don't want to disturb others. Works off one 9 volt battery, so you can take it on the go as well or a A/C jack if you prefer. And the compact size means it takes up almost no space and is easy to grab and go. For the price, I can't think of a single reason not to buy if this is what your in the market for.
Summary: I needed it for practicing. The clean channel sounds incredible, I use this amp with a digitech rp500 for distortions and effects since the overdrive that comes with the amp is not very good. If you are looking for an amp for your practices at home AND you have a pedal effect for distortions, this is a very good option. Totally recommended!
Summary: This was my original review: I love the sound of this amp. Even regardless of size, it sounds great. I think $50 is a little steep considering some used amps you can get for that, but if you need something small...VERY small to just have around this is probably the best thing you'll find. It actually sounds better than a couple practice amps I've used in the past. After messing around with this little amp for a while, I've found the overdrive is almost non-existent.
Summary: lets be real, its a tiny amp with 2.75in speakers. its not going to sound like a 2x12 with a jcm 2000 on top of it. but for being so teeny tiny 4inx10in it sounds AWESOME great for practice at a desk, warming up before a show or even great for recording if you're want a cool tiny speaker effect. no, really. 'pierce the veil' used one just like it to record some funky guitar parts on their Selfish Machines album.
Summary: The mini MS4 do not have a clean sound so good, always with some overdrive distortion, not a good one. I have a Gibson LP with bustbucker pro pickups and the MS4 can afford the impedance of the sound, unless you play it on small volume. Yeah, it's cool to play around and practice a little, but it's better to buy a small amp..., unless you really like to have a crush on your sound. I think that a little of reverb on this mini will increase the quality of the sound.
Summary: Good price. Great sound quality. Easy to carry. I use it to play my Epiphone SG - 400 1966 Reissue at home. With tone and gain controls you can go from clean to crunch, or get a heavy metal sound. Love it!
Summary: This thing sounds like playing through a super loud clock radio. Just like you should expect from something so tiny and powered by a 9 volt. This isn't a bad thing, though, it's perfect for what it is. If you want thicker distortion, just plug in a pedal. I plug my Pod X3 Live into this thing and it rocks.