Power Acoustik 12 Powered Full Range PA System The P-12A powered full-range speaker by Power Acoustik is a 400W power amp built into a rugged blow-molded plastic enclosure with a 12" woofer and a 1" compression driver It is a lightweight, powerful solution with dual XLR inputs for using as a total PA solution, or you can take the outputs from a master mixer and go in through the 1/4" inputs Each input has equipped with gain control for appropriate input levels to the amp.