The compact RC55i speakers can be used as main or surrounds in a theater system or throughout your home for whole-house audio as they fit in practically anywhere, in countless in-wall or in-ceiling positions. Easy installation in 3 steps - cut a hole, feed the wires through, and simply drop the speaker in ~ puts built-in audio within reach. The rotating cams secure the speakers safely and ensure vibration-free efficiency with no extra assembly or mess. Paintable grilles allow the RC55i to blend in perfectly with the decor, virtually making them disappear. Dynamic Balance drivers and aimable swivel tweeters provide accurate imaging with superior bass response and direct high-frequency control in any listening position. Pair these with your favorite amp or a subwoofer for a music system that delivers incredible sound with minimal visual clutter. Timbre-matched with other Polk Audio speakers for seamless blending and exceptional audio clarity when used in a home theater setup.