James Loudspeaker subwoofers have received critical acclaim from the most respected audio/video reviewers in the industry. The EMB Series subwoofers deliver solid performance and value unmatched in the industry. James Loudspeakers EMB subwoofers have redefined the subwoofer category. In fact, The Complete Guide to High-End Audio by Robert Harley includes James' proprietary EMB technology as a class of its own. Designed for listeners that demand the very best, EMB subwoofers deliver lower distortion, smoother frequency response, tighter transients and greater bass extension than conventional designs. EMB Technology features spun aluminum, a pneumatically-coupled radiator and cabinets constructed of rigid, studio-grade MDF.