The Airmotiv RS11 Reference Subwoofer is a powered subwoofer that delivers the audio spectrum's lowest octaves with precision and absolute authority. The Airmotiv RS11 features an 11" high-excursion low-frequency driver, an audiophile quality Class-D amplifier rated at 500 watts continuously and 1000 watts peak, and a frequency response that is flat down to an impressive 20 Hz. The Airmotiv RS11 was designed with the optimal combination of a robust motor structure, extremely high excursion, and very low moving mass. The resulting combination of raw power, low distortion, and excellent transient response allows the listener to fully experience special effects in your favorite action movie, cleanly and with absolute authority, while accurately conveying all of the beauty and subtleties of music. The Airmotiv RS11 shares all of the features of our larger RS13. However, it is smaller, has an amplifier that is a little less powerful, and has a slightly less maximum output at the extreme bottom end of the frequency spectrum. The RS11 is the ideal solution if you need a clean, powerful subwoofer, but space is limited.