I am considering adding a pair of floorstanding speakers (Kef IQ5se) to my current Kef kht3005 5.1 system. I would like to acheive a 7.1 cinema and good stereo sound when I sort out my Sonos system which I am purchasing in the very near future.------------------------------------------------------ My question is; How well will the floorstanders intergrate with the 3005 set up?