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 AC3 mixed signal and 3D virtual surround sound processing can produce and the Dolby multi-channel 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!!! Products that enable hearing sense high bass is rich and restore the original loss details to reproduce the sound sense of location clarity brightness field acoustic effect close to ideal product treble and bass adjustment makes the sound more beautiful bring you more depth fine and clear sense a slender alto transparent mellow rich and full bass naturally the listener has be personally on the scene like effect. Application of a wide range of products: Home / business / car / TV / computer / speaker front / mobile phone input / flat input /DVD/CD. - Dolby surround sound: belt through switch and surround the depth adjustment the treble and bass adjustment - Frequency response: 20Hz~20KHz - Efficiency: 81%-88% - Input sensitivity: 200mV ± 10mV - Dynamic range: 100dB - Input voltage: DC 12V / 1A - Signal input: RCA - The signal output: 3.5 RCA output