Alpine R-W12D4 12 Alpine R-W12D4 12 Alpine R-W12D4 12 Alpine R-W12D4 12 Alpine R-W12D4 12

Alpine R-W12D4 12" R-Series 2250W Dual 4-ohm Voice Coils Car Subwoofer

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Alpine is proud to announce the introduction of the new R-Series Subwoofer lineup that is built off the highly esteemed Type R platform. With select key design and build improvements, the R-Series Subwoofer is able to output more of that deep bass extension and control that the Type-R is known for.


Features
Diaphram

  • Material: Oversized Hairline-Textured Mica Poly Dustcap w / Kevlar Reinforced Pulp Paper Cone Body
  • Design: 2-Piece Parabolic

Surround
  • Material: Injected Molded Santoprene®
  • Design: High Amplitude Multi-Roll H.A.M.R Surround Design (Patent Pending)

Spider
  • Material: Conex®
  • Design: 10 Segment High-Roll Progressive Design

Voice Coil
  • Material: 180ºC High Temp Wire on Sprial-Cut Aluminum Bobbin
  • Design: 4-Layer Dual Voice Coil

Motor Structure
  • Pole Geometry: FEA Optimized Design w/ Compound Radius Pole Geometry
  • Configuration: Radial Vented VC Heat Sink and Airflow Management System (Patent #7,634,101)

Frame
  • Material: Cast Aluminum
  • Design: Perimeter Vented Heat Transfer (Patent Pending), Integrated Shorting Sleeve and Airflow Management System

Terminals
  • Layout: One Sided
  • Design: Heavy Duty 8 gauge Push with Housing, Banana Plug Jumper

Tinsel Leads
  • Design: Reinforced Layer Spider Integration (Patent #6,810,988)

Gasket
  • Design: Concealed Mount Gasket System

Specifications
Power Handling
  • RMS Power Handling: 750W
  • Peak Power Handling: 2250W

Dimensions
  • Mounting Depth: 162mm
  • Mounting Diameter: 275mm
  • Displacement: 0.10 cu. Ft.
  • Added Volume: 0.09 cu. ft. (Reverse Mount, Magnet Out)

General
  •  Frequency Response: 24Hz - 200Hz
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