With Panasonic, you can choose from 3 different types of Home Theaters that match your preference and room. Panasonic SC-PT770 Overview; High Quality Sound: The SC-PT770 uses front and center Bamboo Cone Speakers and a Kelton Subwoofer for crisp, clear mid- and high-frequency ranges and powerful, deep bass. A rigid, low-density bamboo material used in the fron and center speaker's cones helps achieve a clean, responseive sound. Vocals are pure and clear and dialog is crisp and easy to understand. The Kelton Type Subwoofer has an internal structure that is divided into two completely sealed spaces. The drive unit that is mounted to the space in the back causes the air in the front space to vibrate. This causes and Acoustic Filter effect in the front space to absorb unwanted noise while also vibrating the Passive Radiators. This achieves highly robust, reverberating bass sounds. Built-in Dolby Digital and DTS Decoder renders movie-theater-like sound while Home Theater Mode produces a total ouput power of 1000W of High Clarity Sound. Easy to Use: The built-in Universal Dock for iPod gives you a great new way to enjoy music and video3. Just slip your iPod into the cradle and enjoy. The dock charges your iPod , allows you to use the home theater remote to control the iPod , has on-screen audio menus, and also plays back iPod video. The SC-PT770 includes the front to rear wireless speakers, and a High Speed 5-DVD/CD changer with Multi-format Plaback: DVD-Video, DVD-RAM, DVD-RW, DVD-R, +R, +RW, CD, CD-R/RW, Video CD, SVCD, WMA, MP3, and JPEG. Environmentally Friendly: Add to this feature set a Smart Setup mode with Auto Speaker Setup and and Energy Star compliance, Low Power consumption for Stand-by (0.1W), and you have an ideal Home Theater solution.