Sensitivity,power output, and associated dimensions, page-9

Great assessment... From what I gathered from the Tech pres was that the lower the frequency the lower the volume output. This could be compensated to some degree with some cleaver dynamic filtering and combining multiple chips together. However when doing so the sound because more omnidirectional which may not suit all circumstance (independent zoning etc)

from memory I seem to recall some output of 62db for a single pixel, and this becomes higher when more than one pixel is used together. But the tech pre was a while ago now and has likely changed somewhat in its capabilities since that leature