The PULSEC8A-V4 is an under seat subwoofer, its ultra shallow enclosure profile allows fitment in even the tightest of spaces, such as under seats or small trunks. The steel mesh grille provides a strong added layer of protection when installing it in accessible locations. Moreover, the highly efficient class D topology allows the entire enclosure to be more compact as less room is taken up by the amplifier. Also the auto sense turn on makes it suitable to install in factory systems with built in auto turn on technology for easy installation.