- CO-SERIES 165 mm HIGH EFFICIENT DOUBLE VOICE COIL WOOFER
- 1,5″ voice coil
- HEM magnet (High Efficient Magnet)
- improved T-Joke construction
- LLE (Long Life Edge)
- reinforced dustcap
- stable terminals
- multiple ventilation system
- HPPC cone
- very stable steelbasket and PPTA connex spider
- sewn lead wire
- quad voice coil woofer