5.1 Home cinema system which includes AVR 137 which is a 5.1 AV Receiver and the DVD 27 DVD player the package also comes with the TSS500 5.1 Speaker System.AVR137 5.1 AV RECEIVERThe AVR 137 is among the most versatile and multi-featured A/V receivers available incorporating a wide range of listening options. In addition to Dolby Digital and DTS decoding for digital sources a broad choice of analogsurround modes are available for use with sources such as CD VCR TV broadcasts and the AVR’s own FM/AM tuner. Along with the latestDolby ProLogic II® decoding technology Dolby 3 Stereo 5 Ch Stereo and custom Hall and Theater modes only Harman Kardon receivers offer Logic 7® to create a wider more enveloping field environment and more defined fly-overs and pans.DVD27 DVD Player:The DVD 27 may be slim in design but it doesn’t scrimp on features. Indeed this is a compact giant that offers progressive-scan-video perfection with super-fine slow motion a backlit remote and image-format playback from JPEGs and Kodak® Picture CDs as well as MP3 and WMA audio files. A built-in test signal for critical setup and high-end DACs for analog connectivity make the DVD 27 a true best in class performer.TSS500 5.1 SPEAKER PACKAGE:The Infinity Total Solutions™ TSS-500 is a complete multichannel music and home theater loudspeaker system. With their compact and versatile design the satellite speakers can be placed virtually anywhere – on shelves or mounted on a wall using the included bracket. The center channel can easily be placed on top of or on a shelf below the television or wall-mounted. The powered subwoofer delivers the bass impact and excitement for your favorite music and movie soundtracks.