If the speaker is mounted above the screen, and so would be above the listener, then the tweeter should be pointed at (angled down) the middle of the seating area.

如果音箱是放于屏幕顶部的，同样也位于听者上部，那么高音单元应该略向下旋转，指向座位区域的中间位置。

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The free-floating tweeter is outside the speaker box, meaning sound radiates in all directions to give a deeper, wider sound impression, similar to the tones you would hear during a live performance or in a recording studio.

ENGADGET: Philips breathes new life into home stereos with SoundSphere

Each speaker in this system has a tweeter, woofer and four-inch passive bass radiator on the back that moves a surprising amount of air.

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