Big, bad, bodacious.
The Nady PSW18 Subwoofer is a 600W, 18" speaker with 2" voice coil and 50 oz. magnet. It cranks out bottom end that will blow out your windows. Durable black carpet cover; reinforced corners; plus binding post, banana jack, and 2 - 1/4" inputs make it perfect for any configuration and road ready. Handles 300W RMS, 600W peak. The Nady PSW18 Subwoofer offers 20 to 400Hz frequency response.