This is a 17cm woofer from the Norwegian brand Sees. The small caliber yet sharp low frequencies are attractive. As for the exterior, dirt is oxidized (Tamura Eiji)
Maintenance Information: 2023.10.29 Sweep Test Good
Accessories: no accessories
Main specifications: nominal impedance 8 ohms, frequency band Hz 40 to 4000 Hz, maximum input 250 W, rated input 60 W, 91 dB, frame diameter 170 mm, 1.41 kg