Polk Audio Signature S10 American HiFi Home Theater Compact Satellite Surround Speaker - India Warranty* Use as rear or surround speaker in any 5, 7, or 9 speaker home theater configurations, the Polk signature S10 compact satellite surround speaker continues in the Polk tradition of American Hifi. Featuring Hi-Res certification, a New dynamic balance designed acoustic array precision cross-overs, an anti-diffraction grille, modern cabinet styling and exclusive power port bass enhancing technology, you get elevated sound for movies, TV and music in a totally re-imagined design. Polk-expect great sound.