- PIONEER 12" Dual 4 ohms voice Coil subwoofer - TS-A300D4
- 12" Glass fiber and mica interlaced Injection molded polypropylene (IMPP) Cone construction
- Butyl rubber surround and poly-cotton/ cotton dual spider for strength and linearity during high excursion
- Oversized 60 oz Double stacked Magnet and vented pole yoke for increased power handling
- Smooth and seamless integration with PIONEER a-series full-range automotive loudspeakers

