Since many of us are seemingly having revelations about how good Sanyos can sound, I have to share...
I bought my Sanyo M9990 several years ago from an S2G member and really didn't expect much for a cheap fixer-upper. Honestly, it blows me away with its sonic competence! It sounds really, really good. It has great stereo separation, more bass than you'd expect for a smallish mid-sizer, and excellent mids & highs. It doesn't try to be overly loud, instead it just delivers pleasing, exacting sound.
I'd like to hear it side by side with the slightly more powerful bigger-brother 9994 (shoulda done that at the meet).
Anyway, its sound quality vs. size ratio makes it my sleeper box of choice to mention here.
If you don't have one, get one... you won't regret it.
Here's mine put to use while visiting South Beach last March!