The MusicCast 50 is a stereo design (albeit from a single point source). The larger speaker mounts two 10cm woofers and two 3cm soft dome tweeters powered by two 35 watt amps (albeit with the 35 watt figure being generated at alarming levels of distortion). More @Wikipedia
Hover over any link to get a description of the article. Please note that search keywords are sometimes hidden within the full article and don't appear in the description or title.