I've owned wharfdale in the past and they were great speakers, but weren't the 9.6. But they have a good rep so I would buy them. What is it about the wiring that you find wierd? I wired my amp and cd this way and ran them through one set of speakers.
But 2 sets are for bi-wiring for low frequency and high frequency from the receiver (2 sets of wires), which improves the sound.
If you bi-wire remove the plate (the gold plate bit you see above)