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Discontinued Product

Alpine 12" Type-X Series Mobile Subwoofer - SWX-1243D

Abt Model: SWX1243D | UPC Code: 793276620965
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Product Details

Alpine 12" Type-X Series Mobile Subwoofer, Model SWX1243D

Extreme Performance. If you are looking for a high-quality subwoofer with the most accurate and precise in-vehicle subwoofer performance, then look no further. Alpine’s 2nd generation state-of-the-art Type-X Subwoofers are your answer. With the advanced motor structure and new sound of these subs, you will experience higher efficiency, lower heat creation while maintaining superb sound, so you can really crank up the bass.

Key Features:

  • New Aerospace Cone Material
    The Type-X cone uses new advanced aerospace materials such as Kevlar-Rohacell® parabolic cone for outstanding strength and light weight. These lighter materials minimize moving mass for greater output efficiency than ever before
  • HAMR Engineering
    Type-X subs are built with HAMR engineering, Alpine’s exclusive subwoofer solution for cooler operation, longer life and tight accurate bass. Type-X subs are the way go



  • Design: Concealed Mount Design with Front/Rear Sealing Gaskets

Tinsel Leads

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


  • Design: Insert Terminal Blocks with High Current Voice Coil Configuration Jumper
  • Layout: One Side


  • Design: Perimeter Vented Exo-Frame (Patent Pending) with Integrated Spider Landing (Patent #6,678,387)
  • Material: Cast Aluminum

Motor Structure

  • Configuration: Billet Copper Shorting Sleeves with Heat Dissipation Plate (Patent Pending)
  • Pole Geometry: Compound Radius Curve (Patent #6,639,993) with T-Drive

Voice Coil

  • Design: 6-Layer 4O Voice Coil with Inner/Outer Winding
  • Material: 220°C Aluminum Wire on Twin-Wall Aluminum Former (Patent #6,292,079)


  • Design: Mirrored Progressive
  • Material: Nomex®


  • Design: High Amplitude Multi-Roll (Patent Pending)
  • Material: Injection Molded Santoprene®


  • Design: 1-Piece Parabolic wtih Vented Force Transfer Assembly
  • Material: Kevlar Rohacell® Layered Composite



  • Frequency Response: 24Hz - 200Hz

Power Handling

  • Peak Power Handling: 3000 Watts
  • RMS Power Handling: 1000 Watts
  • Power Range: 500 - 1000 Watts

Approximate Dimensions:

  • Added Volume: 0.079 cu. ft. (Reverse Mount, Magnet Out)
  • Displacement: 0.194 cu. ft. (Front Mount)
  • Mounting Diameter: 10.9"
  • Mounting Depth: 8.6"

Approximate Weight:

  • Shipping: 15 lbs
Key Features
3000 Watts Peak Power Handling/ Dual 4-Ohm Voice Coils/ Kevlar-Rohacell Parabolic Cone/ HAMR Engineering/ Cast Aluminum Frame/ 24Hz - 200Hz Frequency Response
More reasons to buy the Alpine SWX-1243D from Abt Electronics
  • is an authorized dealer (Learn More).
  • The Alpine SWX-1243D is Brand New.
  • The Alpine SWX-1243D Ships in a Factory Sealed Box.
  • Abt ships this product for free!
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