EA-3.1 Energy Attenuation Material

Automotive Upgrades

DD AUDIO’S EA-3.1 ENERGY ATTENUATION MATERIAL NOW SHIPPING

Oklahoma City, Okla., August 23, 2019 — DD Audio, a manufacturer of high performance audio equipment, proudly introduces the newly revised EA-3.1 Energy Attenuation Material. This upgraded version of the EA-3.0 Energy Attenuation Material offers advanced interior shielding from unwanted road noise while also reducing internal vibration and noise reflection that can be caused by the massive sound output of a…