I have a current basic audio setup of 7.1. I would like to enhance the sound quality hence looking to upgrade. Usage is 50/50 for Music and Movies. Initial budget is 3K. Current setup includes: Receiver: Denon AVR-3312 Front L/R: Polk Audio RTi A7 Centre: Polk Audio CSi A4 Surrounds + Back: Speakers from Bose AM10(4-double cubes) Subwoofer: BIC America F12 Media Players: Samsung BD-E6500, Oppo BDP-103 TV: Samsung 3D LED Smart TV UA46D6600 Except for the Oppo which is a new addition, willing to change any/all components if necessary. Current thoughts are: Speakers L/R: Polk Audio RTi A9 or Paradigm Monitor 9 Series 7 or Paradigm Studio 60 or PSB Image T6 or Martin Logan Electromotion ESL Receiver: Either keep the 3312 or Pioneer Elite SC 77 Amplifier: If required NAD C275BEE(150x2) or Emotiva XPA-2(300x2) Subwoofer: No ideas yet. But not really satisfied with the sound of the F12 Surrounds(2) + Back(2): Polk Audio FXi4 or Polk Audio RTi A3 All suggestions, ideas are welcome.