Bose® VCS-30® Center/Surround Package Details Introduce yourself to high-performance home theater sound with the Bose® VCS-30® center/surround package. By building upon your current stereo speakers and surround sound receiver, the VCS-30® package allows you to experience thrilling home theater sound, easily and affordably. The VCS-30® package combines our VCS-10® center channel speaker with two full-range rear surround speakers. Your current stereo speakers serve as the front left and right channels. Just add your surround sound receiver to experience more dramatic movies, thrilling sports, exciting TV programs and lifelike music. Precisely positioned drivers provide a large, consistent sound field for a cinema-like experience. This proprietary technology also ensures dialog is "locked" on the screen, even when someone is seated off to the side. Compound Loaded® drivers optimize output to deliver rich, clear dialogue from a streamlined speaker that complements your TV or entertainment center. The flared slot port designisa specially engineered design where woofer and port geometry complement each other to reduce air turbulence. Enjoy cleaner and deeper performance in the lower notes, particularly at high volumes