I have connected my Sony Bravia TV through HDMI 1.3c cable and my sound system (normal Sony CD player 1000Watt PMPO) through analog composite cable. The problem is that when I open sound of both my TV and sound system I hear echo in voice (which means that there is a slight time delay in processing of both voices).
I want them both to have better sound quality as TV speakers are not good enough (small 5 watts each). Anyway thanks, I have solved the problem today by taking the output from TV to my music system. This eliminates the Echo and gives theatre like sound from six speakers (2 TV + 4 music System).
Good to see you sorted it. However I still don’t understand your problem. You have 4 speakers with 1000Watt PMPO and you add 2 more at 5 watt and this actually makes a difference.