This is a mid to high range unit used in Sansui home stereos. The characteristics etc. are unknown, but you can hear the natural sound comfortably on the paper cone. The exterior is dirty, dull, and there is a feeling of use (Katsutsugu Hiura)
Maintenance information: 2022.11.15 sound output confirmed
Accessories: none
Main specifications: impedance 8ohm W130 x H130 x D79 mm (actual measurement) screw pitch (diagonal) 140 mm weight 536 kg