The YSP-5100 achieves true surround sound by directing sound beams off the walls to reach the listener from various angles. The main mode is 5 BeamPlus2 for 7-channel sources. In addition, there is a wide variety of other listening modes. You can select 3 Beam + Stereo + 2, 5 Beam, 3 Beam + Stereo, 3 Beam or Stereo, depending on the type of source and your room acoustics. Designed to maximize the potential of HD sound sources, the NS-210 speaker series provides great enjoyment for both movies and music.