Inwalltech M525.1LCR - 5 1/4" Dual Aluminum Home Theater In Wall LCR Speaker Resounding, intense, booming bass for that full effect action packed movie from lightweight and stiff gold Apolymer-Cones (Propriety coated polymerized woofer material). Brilliant highs and smooth midranges in an effective diffusion pattern ideal for flat wall/ceiling installations come from pure balanced synthetic silk soft Accutec-Dome tweeters (Propriety designed density polymer chained formula). Timbre matching (the family of speakers sound the same) ensuring utterly seamless blending from speaker to speaker. Easy one-cut, drop-in installation puts built-in audio within reach, with Exact Fit templates and a precision flange that clamps the speaker securely to the drywall. Visualize an even more hidden look by painting the grill and frame of the speakers for a nearly invisible installation