Alpine SWR-12D2


These redesigned fifth-generation Alpine 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. 

The Alpine SWR-12D2 has a new FEA-Optomized Motor Structure together with Alpine's revolutionary High-Amplitude Multi Roll (HAMR) Suspension Design gives the new SWR-12D2 Subwoofers the highest X-max and SPL output in the category. 
With a real-world, measured 21 mm of X-max, allow the new Type-R Subwoofers to deliver the best-in-class bass output, ultra-low distortion, and unparalleled sound quality. 

Starting with a new ten piece, segmented magnet structure, the new Alpine SWR-12D2 subwoofers deliver more accurate, louder and cleaner bass with even more control. This new magnet assembly is also an integral part of the next generation of Alpines Patented Radial Vented VC cooling system. Alpines Patented Radial Vented VC Heatsink and Airflow Management System helps to minimize power compression and ensures reliable long playing time by actively eliminating output-robbing heat away from the Voice Coil. The new one-piece cast aluminum frame with integrated shorting sleeve uses the entire frame as a heatsink, to allow for sustained power output and handling, even in the most extreme of applications. 

Power Handling 

  • Power Range: 300W - 1000 Watts
  • RMS Power Handling: 1000W
  • Peak Power Handling: 3000W

Diaphram 

  • Material: Oversized Hairline-Textured Mica Poly Dustcap with 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
  • Dual 2 Ohm

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

Dimensions 

  • Mounting Depth: 162mm (6.375??)
  • Mounting Diameter: 275mm (10.875??)
  • Displacement: 0.10 cu. Ft.
  • Added Volume: 0.09 cu. ft. (Reverse Mount, Magnet Out)

General 

  • Frequency Response: 24Hz - 200Hz