Urethane edge is good. The woofer used in the L200B and L300. You can enjoy the JBL sound of yesteryear with a low center of gravity and stickiness. You can build a sound with a low center of gravity with an Alnico magnet (Fujisawa Yukishi)
Maintenance info: 2021.12.16 sweep tested
Accessories: none
Main Specifications: 38cm Alnico Magnet Allowable Input 100W Impedance 8Ω Output Sound Pressure Level 93dB Rim Outer Diameter 387mm × D145mm Screw Pitch 370mm