The testers at our review partner Digital Trends published a review of the new Yamaha YSP-4000 sound projector. The YSP-4000 scored a Editor's Choice award. I still own the YSP-1000 and love it.

Quote from the review: "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."
Read the full Yamaha YSP-4000 Digital Sound Projector Review.