The Car Subwoofer Type Voice Coil
3'' Size Coil DVC Type
The Bobbin Material is KSV, USD KAPTON, 2 Layers Kapton with quite Good Stiffness
The Winding Wire is High Grade Copper Wire
The Taping Paper is Black Spunlace Cloth
The Biggest Characteristic: Four Copper Foil as Lead Wire
Widely Used in Car Subwoofer.