Kyoritsu Electronics Industry's bass reflex enclosure. It was an unopened item, but I opened it for a photo shoot. The recommended unit is the TangBang W3-582SC. If you've been looking for one, take this opportunity! (KOBAYASHI Hitoshi)
Accessories: original box, instruction manual
Main specifications: bass reflex type mounting hole diameter 76mm Material: MDF 15mm thick W140 x H260 x D180 mm 2.0 kg