The Atmos speakers are too expensive, so I just used the two rear surround speakers of klipsch Quintet III as upfiring speakers on top of the two main speakers. Klipsch Quintet III speakers are small but powerful, and they have base and can be tilted up. Now my system sounds much better. I played several BD movies with Atmos and DTS-X soundtracks. I can tell there is huge difference than my previous 7.1 system. Before I could tell the sound was from which speaker. But now I feel immersed in the sound field. The base is solid and the movement of sound is so clear. That's really amazing!
Marantz NR-1608, LG 55UB9500 4K LED 3D TV, JBL HLS820, Klipsch Quintet III, Monster Cable THX subwoofer.