The Rockford Fosgate P3 12" Shallow Mount subwoofer delivers the Punch - even in depth limited mounting situations. All vehicles are not the same: some can accommodate deep subwoofers and some can't. In the past that meant no Bass. Not anymore! Now even depth challenged vehicles can have REAL Bass and the Dual Voice Coil allows configurations for every application. Shallow woofers are designed for challenging spaces when a traditional woofer cannot be used.