Well my mom recently purchased a bose wave because her old stereo broke. Last night, she was away and me and a few friends were hanging out at my house, and i decided to see how good it actually was.
Listening to the song "Don't push" by sublime, from the "Gold" comilation, the bass was 300% better than my personal stereo, and many times better than my PC speakers. With the subwoofer at maximum and the volume decently high, the bass didn't come close to the bose. When i used a CD that i burned through itunes of the same song, the sound wasn't half as good as it was from the original CD.
All in all, i highly reccomend the wave for anyone who wants good quality music from a very small system.