Might sound daft but all my previous subs have had a single phono type connector. However, this C6S is rather more complex and has a plethora of connections on the rear. How do I wire it. It has: Line Input - L (phono), R (phono) Line Output - L (phono), R (phono) High Level Input - L (+,- banana sockets) High Level Input - R (+,- banana sockets) Aaarrggghhhh! My amp (Marantz 7200) has the standard single phono output for the sub. What do I wire this to on the sub unit? Thanks.