JL Audio 13W7-1.5 W7 Series 13" Dual 1.5 Ohm Car Subwoofer OverRoll Surround - RA-13W7-1.5
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JL Audio 13W7 Subwoofer - Black for sale online | eBay
JL Audio 13W7-D1.5 W7 Series 13.5" subwoofer with dual 1.5-ohm voice coils at Crutchfield
JL Audio 13W7 Subwoofer Spider With Dual Leads 10.25" x 3.5"