He means that if it really only produces 200 to 8000, then it wouldn't sound good. But it most definitely produces sound beyond that range. 200 to 8000 is just the range they chose to report on when they measured its watts.
It's a decent sounding box, but it can't go loud at all. It's small, and kind of a chick box. They go for $50-100 all the time. In fact I have a couple I'll give away at Vegas. They're not worth my time to ship for the low dollar amount I'd get for them, since neither one of them works 100%.