

TL DR: Avoid reflected-speaker solutions, sticking to traditional base channels instead (5./6.1/7.1). However, in my experience, for smaller rooms (less than ~11'x11') where seats are against/near the back wall and large atmos-speaker/listening angles yield very short distances from each other on the ceiling, a 5.1.2 system MIGHT work.but I think in that case switching to high-mounted dipoles sides in a 5.1 system would give much the same effect. And Im not limited to just Amazon, its just convenient with Prime shipping. I'd say the amount based on the stuff I put, around 1000 for everything. I just thought Dolby Atmos was cool and would be nice to have. Im not as interested in making a 5.1 or 7.1 surround sound setup. It wasn't bad.but it didn't add enough to the experience to warrant the $100's/$1,000's required for the upgrade. Honestly, I was only interested in going with a Dolby Atmos setup. X.1.2 by comparison didn't offer much that wasn't already accomplished by previous DSP's: Dolby PLIIz, Yamaha Presence, or Audyssey DSX. I use on-ceiling speakers in my dedicated theater and living room, and tried every combination possible, and found X.1.4 as the only option worth the cost/effort. Regarding "real" atmos (in/on-ceiling).it depends on the room and equipment. If you're itching to add channels, I think adding "wide" DSP-derived channels would better serve 90% of rooms more so than any amount of reflected-based "height" channels. I actually found this to be a better solution than dedicated off-the-shelf solutions, because you can adjust the rake for proper angle given the geometry of the subtended angle formed by you front speakers and your listening position. If you want to get a good idea how these atmos-ready speakers sounds, get small bookshelf speakers and prop them up at angle on your mains (try to aim for the point on the ceiling that will "bounce" directly to your seat, a-la billiards).
DOLBY 5.1 SETUP PROFESSIONAL
Your money is much better spent on professional calibrations (if you do not have the necessary equipment and understanding of acoustics to do so yourself), multiple subwoofers, better subwoofers, and proper acoustic treatments.

Even the best designs suffer from a multitude of acoustical problems, and require very specific room construction to be even somewhat effective. simulated by reflection) systems, whether they be X.1.2 or X.1.4, to be ineffective and a waste of money at best, or gimmicky and distracting at worst. Also, I do not receive any monetary compensation for the advertisement or sale of consumer electronics. Disclaimer: As with all audio experiences, this is purely subjective, and dependent upon individual equipment, room, HRTF, and, most importantly, bias/prejudices.
