JBL Northridge E150P 10-Inch Powered Subwoofer with 150-Watt Digital Amplifier, Single (Black Ash) 10-inch low-frequency PolyPlas woofer FreeFlow flared port prevents distortion High-output 150-watt amplifier; 250 watts peak dynamic power Line level and speaker level inputs with 5-way gold-plated binding posts Measures 12-1/4 x 17-3/4 x 14-1/2 inches (W x H x D)