Products used to sneak into the top America virtual Dolby surround sound technology， can carry on the 3D stereo enhancement processing and 3D virtual surround sound processing， can be separated to decode Dolby Pro Logic and Dolby digital AC－3 mixed signal and 3D virtual surround sound processing， can produce and the Dolby multichannel effect grate beautiful 3D virtual surround sound effect， can feel the sound generated around the position of sound， accurate positioning， can feel the artillery shells exploded behind， aircraft flying overhead sound， very wonderful， to be personally on the scene feeling， use the product truly realized only two speakers can produce 5 speakers， home theater surround effect. Common stereo CD， VCD signal and the mono signal processing by products immediately after the strong sense of three-dimensional space， and comfortable stereo surround.