ALPINE R-W12D4 subwoofer auto

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