I'm setting up a 7.2.4 home theater in a room that is 15'x29' with 9' ceilings. I currently have the following speakers (have had them for many years):\nKlipsch KLF 20 floor standing, Ref IV RC62 center channel, and KSW 12 down firing subwoofer. \n\nWhat speakers would you recommend I match up with those? The Atmos height speakers will be in ceiling. The side speaker will preferably be in wall. And the rear channel speakers I'm not sure.... I could put them in wall all the way back. But that is 29 feet from the TV. The main viewing will be around 13 feet from the screen. Or I could mount bookshelf speakers on the side of the wall about 18-20' feet back and angle them toward the main viewing area. Any thoughts there?\n\nAlso, what receiver would you recommend? I'd like to keep the cost as low as possible yet still get the 11 channels with decent sound.