Unspecified 8cm cone unit. The metal-colored center cap is impressive. The edge is urethane, but it has good elasticity, and it seems like you can still enjoy it (Murakoshi Yoichi)
Maintenance information: 2026.5.14 sound output confirmed
Accessories: none
Main specifications: measured impedance 8/8 ohms, screw pitch (diagonal), 108 mm, external dimensions: φ106 mm, depth: 44 mm, 193 g