Hi. I have just purchased a s/h & reconditioned Cyrus 2 amp & Cyrus PSX to drive a Marantz CD 7300 (and also itunes via laptop & extenal soundcard) in a new room 6.5m x 4.5m open to the ridge with timber floor. The Cyrus sounds great through some old Cyrus 780's but are unlikely to 'fill' the new space. What floor standing speakers would you recommend? Reviews are good, but are KEF iQ5SEs or Mordaunt Short Aviano 6s compatible? Or should I look out for some secondhand Mission 752f's or 753f's? Thanks for your guidance.