We're well acquainted with both connected bookshelf audio systems and colorful speakers -- seeing both in one place, though, is still a rarity. Yamaha reckons the two aren't mutually exclusive. Its MCR-B142 and MCR-042 both put out 30W of sound taken from a 30-pin Apple device dock, USB, aux-in or old-fashioned CDs, but they also come in 10 different colors; anyone who's wanted a purple stereo to match their cr
