The deep gap offers more X-max for a total of 22.5mm. This sub also comes with dual upgraded progressive spiders, cone, surround, 3 voice coil, cast basket, push terminals, and upgraded sewn down lead wire. Extremely rigid non-pressed paper cone assembly.
Polypropylene dust cover with DC logo. Dual 8 OD semi cup progressive roll spider.
Extra heavy duty interweaved tinsel lead wire sewn to spider. FEA analyzed and optimized motor assembly Fully CNC machined. Chrome spring loaded push terminals. Dual 4 ohm 3 Hi-temp Aluminum voice coil wound on black anodized voice coil former. DC Resistance (Re): 3.6 Ohms. Resonance Frequency (Fs): 35.4 Hz. Equivalent Volume (Vas): 28.99 L. Mechanical Q Factor (Qms): 8.33. Electrical Q Factor (Qes): 0.617. Total Q Factor (Qts): 0.574. One-way, Linear Excursion (Xmax): 23 mm. Voice Coil Inductance (Le): 3.5 mH. Force Factor (BL): 17.2 NA. Air Load (Mms): 225 g. Suspension Compliance (Cms): 0.09 mm/N. Sealed Enclosure Suggestion: 1 cu. Ported Enclosure Suggestion: 1.25 cu. Outside Driver Diameter: 12.5. You will be issued a Return Authorization Number. In order to maintain an inventory of 100%, Brand New, A-Stock, untouched products, all sales are final. We ask that you please be sure you are ordering the correct product.The item "DC AUDIO LV3 M3 12 D1 12 SUB 1800W DUAL 1-OHM SUBWOOFER BASS SPEAKER WOOFER NEW" is in sale since Wednesday, January 13, 2016. This item is in the category "Consumer Electronics\Vehicle Electronics & GPS\Car Audio\Car Subwoofers". The seller is "woofersetc_outlet" and is located in Los Angeles, California. This item can be shipped worldwide.