1928 Western Electric cinema speaker

This is authentic Western Electric cinema speaker from 1928, as presented by Mr. Joe Roberts of Silbatone Acoustics at the 2011 High End Show in Munich, Germany. From Wikipedia: “It is a wide-audio-range horn loudspeaker estimated to be nearly 50% efficient, thus allowing a cinema to be filled with sound from a 3-watt amplifier. This was an important breakthrough in 1929 because high-powered audio valves were not generally available back then.“ We feel truly fortunate to have been able to listen to a