There is no operation problem, but it is currently sold because it is cheap. A rare flat woofer is now in stock. Why don't you make a unique speaker easily (Daiki Goto)
Maintenance information: 2026.3.11 operation confirmed
Accessories: none
Main specifications: diameter: 218 mm, height: 105 mm, screw pitch: 200 mm, weight: 2.0 kg/piece (actual measurement)