- American Bass DX104 10" 500W 4 Ohm Subwoofer - Ultra Thick Chrome-Plated Deep Bottom Basket. - Dual Mirror Image Spiders - NT Multilayer Foam Surround for Better Stable Linear Exclusion. - Stiff and Rigid non-press Paper Cone. - Inverted Dust Cap further increases Cone's resistance to flex under Pressure - Dual Black Mirror Tinsel Lead Wires. - Sleeved High Power Tinsel Lead Wires to resist Lead breakage. - Blackened Motor Parts for Superior Heat Dissipation & Long Life - Hi-Temp Anodized Aluminium Voice Coil Bobbin with Nonex Protection. - Ultra-Length Voice Coil for High excursion without Distortion. - Hyper extended Pole Piece Increases Accuracy, raises Induction. - Extended Motor Structure - Special Cooling Vents of Deep Bumped Back Plate to Increase Power Handling. - Uni-Rubber Gasket for Airtight Seal in Mounting. - Rubber Magnet Boot Protects Magnet. - Single Voice Coil 4 Ohm - Chrome Push Terminals - 500W MAX / 250W RMS - 60 Oz. Magnet Structure - 2" Voice Coils