canale centrale martinlogan focus esl c183 way electrostatic hybrid center channel, air suspension, dual 165mm aluminum cone woofers, 457x191mm CLS XStat controlled dispersion curvilinear electrostatic ribbon midrange, 26x36mm Folded Motion ribbon tweeter. Power 50 400W. Positioning both in support and on the wall with the supplied bracket. Focus ESL C18 is a versatile performance shelf or wall mounted electrostatic center channel speaker, bringing realism into focus with an 18 inch wide