Alpine Type R 10D4 2" Recone Kit - Dual 4 OhmAftermarket Alpine Type R 10D4 Subwoofer Recone Kit. 2" Voice coil version. Kit shown in photo is an example, and may not be specific to this speaker. THIS IS A CUSTOM KIT To most car audio guys, it's common knowledge that Alpine does not sell recone parts or kits for their Type R line of subwoofers. This is a custom kit that includes all the needed parts and adhesives to do your own custom repair of your Alpine Type R 10D4 subwoofer. **NOTES** #1 Kit