SMPTE

When you listen to surround sound you'll notice quite a few improvements over stereo:

• The sonic clarity is enhanced because the center channel anchors the sound and eliminates any phantom image shifts that we take for granted in stereo.

There is no sweet spot per se. — Actually, the whole room becomes a sweet spot in that you can move around freely and never loose the sense of clarity, dimension and spatial continuity. One listener described it perfectly as an "audio sculpture" in that, just like