Dayton Audio's CS620C 16.5cm 2-way coaxial ceiling speakers are an easily-installed way to put high fidelity sound into less-than hospitable environments, especially those exposed to high moisture. These great sounding Dayton Audio CS620C 16.5cm ceiling speakers are ideal for adding music to the kitchen, den, bath, or patio! They feature a weather-resistant 16.5cm carbon fiber cone with butyl rubber surround, and a coaxially mounted 2.54cm Mylar dome tweeter. Perfect for locations exposed to high moisture, these speakers can hold their own against most environments (although they not intended for immersion). The Dayton Audio CS620C's retrofit design allows installation in both new and existing construction in just minutes. Note: Remove and discard the 3.17mm perforated ring that connects the center "painting grill mask" and the outer "mounting template" before attempting to use the templates. PRODUCT SPECIFICATIONS Input Rating 8 ohm Mounting Style In-ceiling Special Features Weather Resistant Woofer Diameter 16.5cm