Little speakers are looking up. Pricewise, these Definitive Technology ProCinema speakers and this Pioneer Elite A/V receiver are a perfect match. Even visual cues unite them, with the receiver's shiny-black metal faceplate echoing the satellite enclosures' black-gloss curve. In other ways, they may seem like an odd couple (or septet, rather). Wouldn't that big receiver be too much for those little speakers? No, say the specs. With the satellites rated to handle as much as 200 watts per channel, the receiver's hefty rated 140 watts are well within the acceptable range, although the speakers' 90-decibel sensitivity suggests that they'll play fairly loudly, even with a lower-powered amp. Therefore, it is legal to marry these speakers to this receiver, at least in Massachusetts, Canada, Spain, and the Netherlands.