The Polk Audio RC60i in-ceiling home theatre speakers are audiophile-grade and available from vplak for an immersive audio experience. Featuring Dynamic Balance from Polk Audio This in-ceiling speaker produces an excellent soundscape with a 6.5" polymer mid-bass woofer and a 3/4" soft dome tweeter. A vast dispersion area and highly directed sound are made possible by coaxially mounted drivers, giving you a theater-like experience.