Amplified; 10" Underseat Subwoofer; (Dirvers Seat) Mounting; No Cutting Required; High Impact Molded Subwoofer Enclosure; 500 Watt (RMS) Class-D Mono Amplifier. When running the NX310WA by itself produces 250 Watts (RMS) When running both the NX310WA & NX310WP the Amplfiier produces 500 Watts (RMS) 10" Highout put Subwoofer, Adjustable Mounting Hardware; Compatible with NX310WP via D2D cable; NA30C, NA82M, NS14A, NS27A,NS35A;