This is a Sony surround sound system. This sound system HT-DDW990 system models are STR-K990 Receiver and the speakers and subwoofer model SS-SRP900 speakers, SA-WP780 subwoofer.  This system is unused and most is still in original plastic as shown in pictures. This system was sitting in storage unused. The condition is shown in pictures and is sold as is. Please note before buying. This system is unused and is missing the original box. Two speakers are missing their foam packaging. The rest have the original foam on them. Sold as is. Please note before buying. This system comes with one Sony STR-K990 receiver plus 5 Sony speakers and one Sony Subwoofer. The information for the speakers and subwoofer is shown in pictures. The Sony receiver and speakers have some marks from storage sold as is. Everything is tested and works. The original manual and antenna, plus more, is in original plastic, unused as shown in pictures. One Sony remote is still in original plastic. Sony wires are still in original plastic. The subwoofer is unused and still has original packaging around the plug, as shown in pictures. What you see in the pictures is what you will get. This is a vintage Sony surround system ready to use.