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MTX Audio TS5512 | 12" Dual 4 ohm Thunder Square TS55 Series Car Subwoofer - Auto Gadgets by Seng Hoe Huat | Brunei's Largest Retailer for Car Accessories, Gadgets and more
MTX Thunder Square TS5512X2D Ported enclosure with two 12" Thunder Square dual voice coil subwoofers at Crutchfield