This is a Bose Acoustimass 10 Series IV home entertainment speaker system. This high-end system includes the powered Acoustimass module which provides powerful low note effects, four reflecting cube speaker arrays, and one center front speaker. Originally sold retail for about $1000, and now selling on Ebay for $300 to $500 and above. It appears to have been used very little and has been tested with an Onkyo AV system (also for sale at The Closet). Priced at only $200. Stop into the store, check it out on display in our front window, and then take it home to set up an amazing speaker system.