Can anyone offer any advice. I have purchased a Relysis RLT2000 and love the unit. I was just a vit disappointed with the sound. The thing is I cant locate and audio out so I can link it with my surround unit. I have a Subwoofer out option. Using this only output what could be my options to improve / increase the sound ? Can i use a Active subwoofer or could I use something like this ? or this ? or even this ? The TV came with but cant figure out how I would use it ?