I know very little about DVD/TV set-up, so I'd be grateful for your help. I have a Panasonic TX36PG50 TV and have just bought my first DVD player, Sony NS705 a couple of days ago. The sound is pretty low and not as I expected from a DVD player. I was expecting it loud, clear and spatial. My TV has the standard 5 speaker surround as supplied by Panasonic. The DVD player is connected to the TV by a QED Squart lead. My question is do I need a separate amp to create good surround sound?