*Currently sold. This is a YAMAHA NS-451 woofer. Japanese paper technology is used for the diaphragm, and the internal magnetic type of Alnico Magnet is used for the magnetic circuit. The exterior is discolored and dirty on corn paper, and there are traces of cutting the cable on the terminal (Ryo Mizusaki)
Maintenance information: 2026.2.25 sound output confirmed
Accessories: none
Main specifications: 20cm cone shape W205 x H205 x D95 mm 1.3 kg/1 bottle