You are looking at very good horn driver using for middle high range or high range manufactured by ONKEN, in 70s year, It is one of the best driver made by Japanese. Titanium diaphragm with very good sound. You can use it as middle range in 3 ways system or high range in 3 ways system. It has very wide range frequency response, from 500 to 25KHz .
Horn is Asagao type special order made by Wooden, maker is OEM for GOTO unit. Horn response frequency is from 550Hz ~