Dont know if i'm in the right section but, here goes. I have a DVD player home cinema system, it's an AMW P8A5 system. this comes supplied with all the speakers, I have had this set up for some time and its very good for what I paid. I would now like to go further and buy an AV amp so i can have TV & vid in surround sound too. But, the connection on the back of the amps are for an active subwoofer the one supplied with the dvd player is passive. does anyone know a way around this or will I now have to buy an active sub? Has anyone else come up against this problem.