The Q Acoustics Q B12 is an efficient & controlled subwoofer with a Class D amplifier & peak power of 440W. True to Q Acoustics reputation for home cinema sound you can expect robust bass that will make every soundtrack feel like a live performance. The high-excursion 12-inch driver ensures a detailed low-frequency response bringing out the subtle nuances of a double bass or the punch of an electronic kick drum. Its infinite baffle enclosure provides maximum stiffness to the motor system resulting in minimal sound distortion & a bass satisfaction thats hard to match at this price point. This subwoofer is easy to integrate with your existing hi-fi or home cinema setup making it as easy to position & set up as it is invigorating to listen to. The Q B12 is not just about power; its about delivering a balanced effortless & immersive audio experience.