Owner's Manual
Page 6
... Imaginary surround left (SL) speaker positions, which are actual speakers around the room. Yamaha YSP-4000 Digital Sound Projector challenges this Digital Sound Projector creates true-to-life 5.1-channel surround sound that complicated speaker setup and troublesome wiring go hand-in-hand with a unit that...theater. Sit back and enjoy the real sound experience of this unit to adjust the delay time for separate sound beams, resulting in highly directional sound that is not only easy to set up, but is generally accepted that in order to fully enjoy the benefits of surround sound at home...
... Imaginary surround left (SL) speaker positions, which are actual speakers around the room. Yamaha YSP-4000 Digital Sound Projector challenges this Digital Sound Projector creates true-to-life 5.1-channel surround sound that complicated speaker setup and troublesome wiring go hand-in-hand with a unit that...theater. Sit back and enjoy the real sound experience of this unit to adjust the delay time for separate sound beams, resulting in highly directional sound that is not only easy to set up, but is generally accepted that in order to fully enjoy the benefits of surround sound at home...