I am remodeling my family room home theater system to include a HD 3D projector with110" projection screen with alternative viewing on LED flat screen. I am seeking to upgrade my 10 yr old Energy speakers to a new state of the art sound system. Receiver: Sony STR DA2800 ES 7.1 surroundRoom Size: 17' x 13'' - 9' ceilingPrimary Viewing from back wall to screen(s) and center channel - 13'5.1 surround configuration. Optimal theater experience using premium bookshelf type speakers for front main - i do not want floor standing as I am limited by floor space due to built on cabinetry. . Rear: Wall Mount on either side of sofa - approx 2' from sofa on both sides at head level. Sofa backs up to wall. Center Channel: Below LED TV & Screen when lowered. Approx 14' from primary seating area. Subwoofer: Retain use of powered Energy, rear placement in corner with possible addition of second powered sub against wall in opposite rear corner? Seek to gain full balanced sound.New replacement sub to replace Energy sub that best integrate with advised speaker system upgrade? Sub placement must be in rear of room. What would be my optimal choices for a truly spectacular theater sound experience with clear definition and separation? Budget not a major concern. Seeking high quality, jaw dropping rich audio experience over brand name that works well with Sony receiver mentioned above (100 Watts per Channel)Note: would prefer to use 7.1 surround configuration but may be limited to 5.1 due to room/furniture configuration. Understand sound is personal preference but want a nudge in right direction from experts. I am not overly impressed by big box store offering. Any help and guidance appreciated.