I was looking to spend up to $1000 on a 5.1 sound system. The room is about 13'x15'. The TV is an LG 55LK520. It accepts HDMI input and also has a TOSLINK ouput. Everything (music/movies/blu-ray/internet) is running from a computer with HDMI output. This HDMI output feeds both audio and video. Frequency range is somewhat important. A low range of 30hz-40hz would be fine, but 80hz sounds "empty" to me. Any suggestions?