In-wall reference loudspeaker combines solid aluminum baffle with quad 1" beryllium dome tweeter array. Features four 8" aluminum woofers and four 6.5" neodymium mid-drivers delivering 102dB sensitivity and bass below 40Hz. Aircraft aluminum construction with multi-element crossover provides exceptional audio performance in standard 2x4 stud walls. As BE Series models tend to install behind fabric, grille is not included but sold separately.