We usually don't. As shadyJ stated, it's actually pretty easy to rotate the horn on the HB-1 Mk2 and HC-1 Mk2. We don't have any recommendations for upward firing atmos speakers. Actually, a few of our customers have told us that they came across more issues, than anything, when using those speakers, such as they could still localize the atmos material from the upward firing speakers, muddying the front stage, etc. Which we figured would be the case. I wouldn't say the HB-1 Mk2s have a very wide dispersion as they do have a horn loaded tweeter for a more controlled directivity. We did this in order to have keep the energy more uniform going into the room, especially through the crossover. That way it would have a more smoother off-axis response. It also helps reduce early reflections in the room in order to make it less room dependent.
Sales and Marketing Representative