Someone queried the above. I can elaborate. Low bitrate psychoacoustic codecs tend to struggle with transients. A common example of a transient affecting the sound of the bass is the onset of the deep sound of a lower string of a double bass being plucked regularly to provide rhythm, as is common for jazz. At a live performance, or with good quality hi-fi reproduction, the onset of the plucking of the double bass string has bite and clarity. On the other hand, with low bitrate HE-AAC the onset tends to become "mushy", resulting in a boomy rather than tight quality to the bass. This is what I meant by "boomy" bass.
There's only one screen speaker larger than that (the KX-5996), which has two quad 15" bass enclosures. They are huge at 3.6m tall.
This photo was kindly passed on from a Dolby technician, taken in the largest screen in the Middle East and North Africa (VOX Deira). The scale is enormous... it makes even the KX-5996 look small. As you may see in the photo, they also installed 16 dual 18" subs behind the screen.
Edit: For those interested, here's a video showing how they got the screen into the building: https://vimeo.com/168597726
I gotta say, Emotiva must have noticed a serious downturn in sales in Australia since implementing their OS sales structures and appointing a local distributor.
It's rare you see anything mentioned as purchased. Most stuff here for sale is Gen1 or Gen2 prior to the changes.