Morning glory shaped wooden straight horn designed and manufactured with hyperbolic curves. Three screw holes inside the mount fits Altec 2" screwdrivers. (The 4 screw holes on the outside are unknown. (The JBL could not be installed.) By using wood as the material, it reproduces the soft singing voice that cannot be obtained with a metal horn, and the plump sound of the body of a stringed instrument. The exterior has abrasions, dullness, and a feeling of use (Katsuji Hiura)
Accessories: none
Main specifications: Opening diameter 415 mm x total length 455 mm Weight 1.5 kg Screw hole 34 mm Screw hole diagonal 72 mm