Amphion Helium 520cCenter Speaker Helium 510 and 520 dedicated center speakers for crisper and clearer reproduction of musical vocals and movie dialogue Helium has an outstanding design and looks great with a variety of interiors. Designed for use in ordinary homes, it does not compromise sound quality on a tabletop, in a small space, or in a playback environment, and is easy to install and maintains clarity even at low volumes. Since it is widely and evenly