You don’t sacrifice performance for size with Procella’s most compact active subwoofer. Defying expectations based on its size, the P12 produces a maximum output of 116 dB at 50 Hz. How? The P12 is built around a 12 inch long-throw professional audio subwoofer driver with a 65mm voice coil, coupled to an onboard class-D power amplifier that delivers a full 350 Watts of continuous power. Deep bass extension to well below 25 Hz makes the P12 a true subwoofer. And your choice of either black or white painted finishes. Single balanced XLR and unbalanced RCA inputs are provided on the recessed back panel that allows placement directly against the wall. Multiple settings optimize response for room boundary conditions, and a polarity switch ensures integration with the room and main speakers. Procella’s auto power circuit activation from the sub’s sleep mode without truncating the initial program signal. At only 7.9 inches deep (without grille), the P12’s shallow cabinet facilitates its integration into rooms, whether placed against a wall or located in a wall or baffle wall.