Featuring an upgraded electronics section that delivers more power and low-frequency extension, the Yamaha DXS15mkII 15" active subwoofer is even more formidable than its predecessor. The DXS15mkII combines a super-efficient 800-watt Class D amplifier with a rugged, highly efficient bandpass cabinet that assists the DXS15mkII in achieving a remarkable 135dB SPL rating. Low-frequency response has also been extended down to 40Hz. The DXS15mkII features Yamaha's D-XSUB DSP processing, which provides higher output and improved frequency response in a compact, lightweight enclosure that's ideal for smaller stages. With higher maximum SPL, extended low-frequency range, and the clarity and punch you've come to expect from the DXS Series, the Yamaha DXS12MKII gives your sound the professional edge.