Bowers & Wilkins - Cl Series Passive 2-Way In-Ceiling Speaker (Pair) - White

1" tweeter Offer crisp high frequencies. 2-way speaker system Sounds like 1 source rather than several separate sources. Removable grille Remains acoustically transparent while protecting the speaker's components. In-ceiling mounting Creates outstanding sound quality in rooms where space is at a premium. 8" mounting cutout diameter Mounting depth: 3-1/2". 55Hz - 30kHz frequency response Ensures a wide range of accurately reproduced sound. 89dB sensitivity Ensures crisp, robust audio. 4 ohms nominal impedance Ensures efficient conduction of power through the speaker.