Hi, I'm using a Denon 1804 with the standard 5.1 Kef 2005.2 package. Would I need to to anything special to use the 7.1 output of my Denon 1804 if I was to purchase a couple of extra eggs? Would it be simply a case of plugging them both into the back of the amp, or would I need to buy any extra kit to boost the signal (which I understand is split between the two). What about 6.1 - is this just a case of plugging in a single speaker? Thanks, Balders.