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Alpine SWR-1242D 12" Dual 4 ohm Type-R 1500 Watts Car Subwoofer (SWR1242D)

Item #: 73167 Availability: DISCONTINUED
Mfg Part No.: SWR1242D Condition: Brand New


For pick-up:   Please give us a call to confirm your order so we can have the product ready for you.


Big and bad and built for heavy-duty sound, Alpine's SWR-1242D 12" subwoofer delivers high-impact bass that you can hear and feel. Alpine has taken the best features from its previous SWR Series subs and added the hottest technology for ground-pounding power and superb accuracy.

The pulp cone has been reinforced with Kevlar® (the material used in bulletproof vests) for extra rigidity, so it won't buckle under hard play. A rubber surround helps to maximize cone travel for deep bass, while withstanding the decay that can destroy a speaker. A redesigned thermal management system and aluminum airflow motor cover shed heat quickly for efficient operation and better power handling.

The 2" dual 4-ohm voice coils are big enough to handle lots of power while offering system wiring flexibility. The tinsel leads are virtually unbreakable — they're woven into the dual progressive Nomex spiders. An aluminum diecast frame provides a secure, non-resonant housing. The SWR-1242D is designed for use in sealed or ported enclosures.




  • Alpine SWR-1242D 12" Dual 4 Ohms Type R Series Subwoofer
  • Power Handling:
    • Peak: 1500 watts
    • RMS: 500 watts
  • Impedance: Dual 4 ohms
  • Sensitivity  85 dB
  • Frequency Response  23 - 500 Hz
  • Top Mount Depth  7-3/4"
  • Parabolic kevlar/pulp fiber cone woofer
  • High amplitude multi-roll santoprene surround
  • Cast aluminum perimeter vented heat transfer frame
  • Compound Radius Curve (CRC) Motor structure
  • Spiral cut aluminum former with high temperature DVC Winding
  • Radial Vented VC Heat sink and Airflow Management System
  • Mirrored progressive Nomex Spiders with reinforced layer integrated tinsel leads
  • Concealed mount gasket system
  • One-sided terminal layout

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