The Cerwin Vega CVX-21s powered subwoofer features 2000 watts of Class D power with 2 combo XLR/TRS inputs and 3 XLR Outputs. The angle-fired 21-inch woofer, with LF extension to 29Hz, reduces port turbulence without sacrificing performance. When multiple subwoofers are being used close together and rear sound rejection is needed, the new cardioid mode can increase the forward volume together 6 dB while reducing rear volume by 12 db. Covered in Cerwin-Vega's durable TourShield finish, the CVX-21s subwoofer is perfect for touring, ballrooms, medium to larger clubs, outdoor venues, houses of worship, rentals and staging applications. The CVX-21S' fueled by Cerwin Vega's 65 years of professional live sound solutions delivers power to spare, with accurate, sonic precision. Covered in Cerwin-Vega's durable TourShield finish, the CVX-21s subwoofer is perfect for touring, ballrooms, medium to larger clubs, outdoor venues, houses of worship, rentals and staging applications. The CVX-21S' fueled by Cerwin Vega's 65 years of professional live sound solutions delivers power to spare, with accurate, sonic precision.