I currently have an old Yamaha DSP3090 that has gone bad. Input switch is shorted out. Was a very powerful unit. Would love to not only experience DTS but the new Atmos would be a treat. I have enough speakers to go around including 2 subwoofers (M&K MX100 & EPIK EMPIRE }. A Friend has an Onkyo...
Look at the reviews on the New 608 Receiver. 7.2 and 3d ready with all the bells and whistles of their higher end units w 100watts rms ch and 6 HDMI 1.4 Best value and product of its kind Around 399 to 450 at Amazon.com
Go to the epik web site. Power house Subs ,especially the Empire Models (dual 15" w 600 w rms) foe 699. or a pair for 1499 down to 10 hz for popping out wall studs. Good Luck
IMO JBL Center Channel Spks are all around the best bang for your money. Or even Klipsch I would rate second. If you can afford the Martin Logan would be up there. Remember JBL & Klipsch are actually used in Theaters. Good Luck, Kong48