Complete your 100 Series audio/video system with the subwoofer 100 IWSUB8. Including an 8" Polyglass speaker driver and a front vent with a streamlined inner frame to guarantee no-noise operation, this passive bass-reflex subwoofer can be installed during pre-construction of the walls using 16" OC joists. With a shallow in-wall depth (33/8"), a high-quality bass reproduction and covered with a low profile magnetic grille which can be painted, it is as high-performance as it is discreet.