Yamaha was one of the first manufacturers to introduce a sound projector designed to recreate surround sound from a single high-density array of drivers. Since the introduction of the YSP-1, the design has undergone two major revisions, leading up to the YSP-4000. In that time, the general idea behind the device has caught on, and several companies have followed in-step with their own versions of the sound projector. So, what has Yamaha learned from its head-start, and how does the YSP-4000 deliver compared to traditional 5.1 surround setups? Read on to find out all the angles to this interesting, and rarely reviewed, technology.



Link: Digitaltrends