Alpine 12" 30cm max 1800W Subwoofer (2 ohm+2 ohm) SWR-12D2

UUS 2012a- mudel.12", 30 cm subwoofer 600W RMS, MAX1800W (2 ohm+2 ohm)SWR-12D2 - 12′′ Type-R Subwoofers (2Ω + 2Ω)These redesigned fifth-generation Type-R subwoofers include an abundance of enhanced features to achieve staggering power handing capabilities, cleaner output, deeper bass extension and ultra-responsive control than ever before.FEATURESDiaphramMaterial: Oversized Hairline-Textured Mica Poly Dustcap w/Kevlar Reinforced Pulp Paper Cone BodyDesign: 2-Piece ParabolicSurroundMaterial: Injected Molded Santoprene®Design: High Amplitude Multi-Roll H.A.M.R Surround Design (Patent Pending)SpiderMaterial: Conex®Design: 10 Segment High-Roll Progressive DesignVoice CoilMaterial: 180ºC High Temp Wire on Sprial-Cut Aluminum BobbinDesign: 4-Layer Dual Voice CoilMotor StructurePole Geometry: FEA Optimized Design w/ Compound Radius Pole GeometryConfiguration: Radial Vented VC Heat Sink and Airflow Management System (Patent 7,634,101)FrameMaterial: Cast AluminumDesign: Perimeter Vented Heat Transfer (Patent Pending), Integrated Shorting Sleeve and Airflow Management SystemTerminalsLayout: One SidedDesign: Heavy Duty 8 gauge Push with Housing, Banana Plug JumperTinsel LeadsDesign: Reinforced Layer Spider Integration (Patent 6,810,988)GasketDesign: Concealed Mount Gasket SystemSPECIFICATIONSPower HandlingPower Range: 300W - 1000 WattsRMS Power Handling: 1000WPeak Power Handling: 3000WDimensionsMounting Depth: 162mm (6.375′′)Mounting Diameter: 275mm (10.875′′)Displacement: 0.10 cu. Ft.Added Volume: 0.09 cu. ft. (Reverse Mount, Magnet Out)GeneralFrequency Response: 24Hz - 200Hz