Hi I have a Yamaha 773 I just bought a hkts 11 5.1 speaker set. I have 2 Monitor Audio MA202 floor standers for my front left and right. And at the moment I'm using a pair of Kef 2005.2 on stands as surrounds . I have been recently using a mission fs1 centre and sub . And also a hkts 7 sub and a pair for heights/front presence. Although hkts 7 sub and mission sub are the same power the mission sounds like an ant farting compared to the hk. Although mission full is the same hk 1/3 -1/4 up , the hk sub makes the windows shake at 50%. So my questions are Which are better Kef 2005.2 or hkts 11 sats? I can also get extra Kef eggs no problem. Do I need 2 subs and can they be placed back of the room behind/sides of sofa ? The seats vibrate in films. And if I were to use the speakers I have where would I use the kefs? I was thinking using Kef as rears ,hkts 11 as surround and heights , leave the floor standers where they are and not sure about subs as may sell hkts7( 2sats and sub). Any help or input will be much appreciated.