FOR THOSE WHO SAY IT'S LOUD/DISTORTED
350240
Works Perfectly, better than I can ask for, for the price.
For those who say it's loud or the music is distorted, I've had a similar experience, but after removing the piece of plastic on the metal part, it worked perfectly. So those who have that problem should definately give it a try and see how they like it now!
Overall great product for the price.
3579067
It's a mini marshall amp that clips on your pocket... It's fun.

Plus it's distortion is better than others I've tried.

Don't get me wrong, they all sound like crap, but dude, you're clipping a mini amp on your pocket.

What do you expect?
2972822
The sound is great, but after a while it became messed up and distorted. However I know others who have had no problems with it.
4679266
I've been using this for almost a year now and while the sound is decently loud with surprising (but slightly muddy) bass, it's so annoying to actually use. Which side is the front? Why is the rubber casing always so dusty? What in heck do all those buttons actually do? Why is the on-off switch such a secret? I would not buy this again even though I like the sound it puts out, it's just annoying to always have to check which way is the front.
2046731
This thing is louder than a heavy metal concert.  I unscrewed it and placed a piece of paper underneath the contact for "Volume Up" in order to disable that function.  That'll show you little baby!  However, upon power up from being completely off, it defaults to metal concert volume.  Other than that, it should suffice to distract your little one for a few minutes at a time.
3086251
Hilarious.  Slightly distorted speaker, but funny.
275142
This is for "Houses Of The Holy (Remastered Original Vinyl)"
As reported in several reviews, there is noticeable distortion on the left channel, mostly through the last 2 songs of side 2.
Side 1 is pressed slightly off-center.
2048209
Reasonably good sound, slight distortions at maximum volume.
2838196
I started noticing sounds distortion after a month from purchase.. buy with caution!
3843850
Is there much more to say? If you like the Bass Big Muff, this is the same thing, just smaller. What do I like about this pedal vs. other dirt pedals for bass? Well, I like that you have the option of blending in the dry signal with the distorted signal. You can't adjust the mix, you can only adjust whether you want some, or none at all. However, the mix feels pretty good.

In practice, what this means is that when you turn this pedal on with the Dry switch on, you get distortion, but you also get the tone of the bass coming through to the amp, so you don't ever have the bottom end drop out on you the way you get with so many other bass distortion pedals. It sounds more like someone added distortion, whereas with other pedals it feels like someone just replaced the bass with a dirty sound and took away the tone of the bass. But when you do want that, just turn the Dry switch off, and you have that option.

So really, how can you go wrong?
2429639
I bought this and have used it once so far and when I put it in my car, I thought I needed to turn up the volume all the way on my phone, but that made it sound absolutely horrible. SO when I turned down the volume to halfway on my phone and turned the stereo up in the car it sounded great! ...I think it takes a little bit of the bass away though but that's hardly noticeable. Overall I'm happy and satisfied so far...
2140425
Wow this thing has bass! Yeah, I know its perceived bass and not "real" bass, but if your mind cannot distinguish the difference who cares. Only real knock against it is that it may not be as loud as I'd like it to get (but definitely adequate) and that it has ZERO noise isolation (meaning that everyone else can hear your music. This may not be an issue if you don't care, but if you're bumping a cool jams and a commercial that uses a Bieber song comes on, your friends might look at you funny.)
306865
Sounds pretty authentic.  Good volume level.  I put it on an old car and folks seem to find it funny.  But, I don't "over use it".  At cruise-ins it might be viewed as a nuisance, if repeatedly used.  It's totally effective when you need to use your horn to alert other drivers.
3495822
it's got rather funky funk response time and..
the bass sounds like it's coming from a bigger speaker.
This thing will get quite loud.
--it is in stereo (it has a left and a right speaker), not mono (one speaker).... Q-Tip would approve
4845552
I don't like it. I don't know whether all potable speakers have exaggerated bass but the distortion on bass in this speaker is really annoying. Even you can press the "Sound" button to reduce bass and increase treble and tenor, the sound is still terrible becaue the treble part has a little bit cracking voice. Anyway, I haven't listened other potable speakers but if copared with M-Audio Studiophile AV 40, it really sucks.
43086
Good response. Gain control a little tight, but manageable. Good size unit for my room. Great clarity for the more demanding music.
4899607
Works fine for me! I've found that if you have the sounds turned up all the way on your device the sounds gets distorted and fuzzy. I'd recommend keeping the volume on your device lower, and turning up the sound on your car stereo for better sound quality.