Now I'm no audiophile but I'd like to say that I have a slightly tuned ear. The JBL Onstage puts out a great sound for the size of the product. I am very happy with it's portability and size. It sits comfortably on my desk with a lot of other junk.
Apart from the size the sound is decent. The mids and treble are pretty good. However, I was very disappointed with the near complete lack of bass support. If it attempts the deeper range it gets tinny and small. I didn't think that it would have rich deep sound, but it is so far the other direction.
I use another JBL product to provide bass when I'm listening seriously with great success. If you want to get something portable and light and don't mind compromising some power, this product is right up your alley.
JBL - Onstage Docking Station for iPod is not recommended by Zaxby