The Polk RC80i in-ceiling speakers are designed to deliver high-quality audio performance in a versatile and easy-to-install package. These speakers feature an 8-inch dynamic-balance, mineral-filled polymer composite cone driver and a 1-inch soft dome tweeter, which work together to produce clear and balanced sound with a frequency response range of 35Hz - 20kHz. Additionally, the easy-to-install design includes a template for cutting the ceiling hole and a dogleg mounting system for secure installation.