The Sony STR-DG510 is a home theater receiver system that uses
Surround receiver amplifier, Black, 7x100 Watt, Dolby Digital EX
The Sony STR DG1000 AV Receiver makes use of the BRAVIA Theater
The Sony STR-DG710 is a home theater receiver is a product
The Marantz DAvED multi-room system is so easy anyone can do it.