STUDIO 660 12" Powered Sub-woofer System 1000W, 12" (305mm) PolyPlas Low-Frequency Woofer, Power: 500W RMS (1000W Dynamic), Frequency Response: 28 Hz - 150 Hz,Auto Power, Crossover, Level, Phase, Input: One (1) Line-Level LFE Input, Enclosure Type: Bass-Reflex via Bottom-Firing Tuned Port, Dimensions (W x D x H): 420 x 420 x 420 mm, Weight: 25.10 lbs ( kg)