In the second part of his report on Loudspeaker Enclosure Materials, Mike Klasco focuses on new and improved materials alternatives. The report details how new materials offer a valuable alternative to injection-molded thin-wall lightweight plastics, without the expense of sonic integrity. While ABS, HIPS, PC, Poly, and other plain materials dominate today’s speaker enclosure products, there is a new world to be explored from companies such as Eastman Chemical and its TREVA c