The 5.1 channel model, SC-BTT770, delivers advanced sound quality thatcomplements the dynamic 3D images. Based on the concept of reproducingan ideal cinema-like surround sound environment, Panasonic's proprietarytechnology, called Cinema Surround Plus, compensates for the lack of asurround effect to provide natural smooth surround sound and offers anenhanced surround effect from above and around thanks to the virtualspeakers arranged not only in the horizontal direction but also in thevertical direction. Equipped with Panasonic's renowned Full HD 3Dplayback, the systems not only deliver powerful 3D images with dramaticeffects, enhanceddepth, luster and texture, but allow the users to tailor the imagedisplay as desired. 2D-3D conversion makes it possible to convert imagesfrom DVD and Blu-ray Discs (BD) into 3D. So you can watch your 2DBlu-ray/DVD movie collection in 3D for even greater viewing enjoyment.The SC-BTT770 includes a down-firing subwoofer, which achieves powerfulbass by releasing the sound downward from the speaker unit and port andutilizing the sound reflected from the floor. The top model featuresSkype function, which allows the users to connect with friends andfamily around the world on any compatible TV. And when they are not athome, a convenient auto answering video message feature answers incomingcalls and records video voicemail messages. The model is equipped withtwo HDMI inputs in addition to one HDMI output for gaming console andset-top box connections. Since the HDMI inputs feature a standby passthrough function, signals from the connected devices can pass throughthe unit even when the home cinema system is turned off. The systemfeatures an integrated universal dock for iPod/iPhone even with thesleek, ultra slim main component. This lets the users play music andvideo downloads and enjoy high quality sound from an iPod/iPhone. Theuniversal dock also adopts a digital connection for music source tominimize sound degradation. This allows the users to enjoy theirfavorite iPod tunes with pure sound that is highly faithful to theoriginal. The model boasts improved easy-to-use features, such as aninternal Wireless LAN capability so IP content can be enjoyed withouthaving a LAN cable connection