Energy e:XLSeries - Bookshelf Speakers, $150 Measure in inches 10H, 6W, 9D. Great sound and in very good condition. Tweeters and woofers are in perfect condition. They're compact and fit well on a bookshelf. For reviews, see: http://www.audioreview.com/product/speakers/surround-speakers/energy-speaker-systems/exl-xlr.html Also available: Niles Audio SPS-4 Speaker Selection System 4 Channel Protection Switch $50 Measure in inches 2H, 9W, 7D. The SPS-4 allows you to connect up to four pairs of speakers to your stereo receiver or amplifier and play any pair, any combination of pairs, or all pairs simultaneously. You don't have to worry about overloading your amplifier. The SPS-4 has a protection circuit that keeps your amplifier running safely, even if you have all four pairs of speakers playing at the same time.