This wall plate from Niles offers connections for up to seven surround sound speakers and a powered or passive subwoofer. It lets you hide your receiver in an adjacent room and run speaker cables into your home theater a great option folks who want a clean, professional-looking installation. Or, install one of these outlets directly behind your receiver, then run your speaker and subwoofer cables inside your walls to each speaker location.
Note: The wall plate's powered subwoofer input uses RCA connectors on the front and coaxial F-type connectors on the back to allow for in-wall RG-6 coaxial cable. Use F-to-RCA adapters to complete the connection to your powered sub's RCA inputs.