Focal Sub 12 DualSUB 12 DUAL Double coil subwoofer Sub 12 Dual differs from Sub 12 by its dual coil architecture. This offers the possibility of second assembly, with operation at 2 ohms, to exploit the maximum power of the amplifier. With its 30 cm Polypropylene membrane, this robust subwoofer brings deep and powerful bass to your installation. POLYVALENCE The subwoofer's double voice coil design offers a second connection option for even more SPL power. Immerse