This is a newer Martin Speakers USA 5.0 surround sound system. Includes the main front TL3050 10 inch 3-way speakers with incredibly bass so there is no need for a sub, the 401center channel with dual 4 inch full range mids and tweeter, and a pair of 206 rears with 6 inch mid bass and tweeter. Transflex ported enclosure on TL3050s and use SEAS components. New this system is $3000. Beautiful and must see to appreciate. Open to strong offers.