JBL CONTROL SB2210 Dual 10 Subwoofer (Black)Styled in black, the SB2210 from JBL is a subwoofer housing two 10" low frequency drivers, each one capable of handling 500W of continuous power. As such, this unit is suitable for reproducing low frequencies in conjunction with a wide variety of sound systems. Its compact size and ROHS compliant design make it useful both inside and outdoors. It can reach frequencies as low as 38 Hz, and can reach an SPL of 122 dB, making the sub quite loud. Its