This 2-way bass-reflex on-wall/in-wall speaker delivers clear, space-saving sound without requiring a well-ventilated cabinet, and is suitable for the contemporary interior and other applications. Two 4″ passive radiator-supported two-way 4″ woofers provide regulated bass, and the 1″ dome tweeter provides detailed, crisp highs. Its 70Hz-19kHz frequency response, 88dB sensitivity and 8 ohm impedance makes it easily matched to amplifiers in the 60-120W range. With a 2.5kHz crossover, it is tuned to balance in a slim satin black MDF enclosure making it easy to mount on the wall.