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Dayton Audio UM12-22 12 Ultimax DVC Subwoofer 2 ohms Per Coil

Thick one-piece Nomex honeycomb covered cone with woven heavy-duty glass-fiber
Tall-boy rubber surround for extra-long linear excursion without reducing cone surface area
600 watts RMS power handling
Copper shorting rings and cap reduce distortion due to inductance variations
Dual 2 ohm 2-layer copper voice coils