I have moved into a property with hall surround speakers in the ceiling and wondered if I can use the subwoofer of my Logitech z506 to power them? The connections are obviously different but is there a converter I can buy to get them to work? There are 4 sets(one for each speaker) of 4 coloured wires(blue, orange, green, brown). Please let me know if this is possible to get working or whether I should do something else