Powerful Voice Coil Used in PRO Audio Transducers and Car Speaker and Subwoofer - China Voice Coil Cone Driver, Flat Wire Voice Coil | Made-in-China.com
3" Dual .25 Ohm flat Aluminum Subwoofer Voice Coil | The Lord of Bass
Subwoofer Voice Coils - Sonic Electronix Learning Center and Blog
2.5" Dual 2 Ohm Flat Copper Voice Coil | The Lord of Bass
MISCO Speakers | 10” (254 mm) Dual Voice Coil Subwoofer - Red Line