Soundstream Refer ence R3 Se ries R3.10 700 Watts RMS, 10 Dual 2 Ohm Car Audio Subwoofer Brand New, In Factory Retail Box, Not Refurbished. Voice Coil Configuration: 2.5 DVC 2 Ohm.
100% OFC 4-Layer Voice Coil. Back Plate & T-Yoke Venting. Optimum Sealed ft3: 1.00. Optimum Ported ft3: 1.50.Also if you are in AK, HI, PR, GU, SAIPAN OR U.