I've got the similar Promedia 2.1 system. It kicks ass.

I liked it well enough that I now have three sets (me, wife, office). The first one I got a couple of years before the other two. The first one I had to resolder the speaker connections and it seemed to run very hot, so I spaced the aluminum panel on the back off with spacers. The later two don't seem to run as hot.

Dell does have the best price I found on it.