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Car Subwoofers > 
Alpine > 
Item#: 9SIA0ZA3V45858

Alpine SWR-12D4 Type-R 12" Subwoofer with Dual 4-ohm Voice Coils

  • Alpine
  • Dual Voice Coil

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  • Overview
  • Specifications
  • Warranty & Returns
  • Reviews

12" Dual 4-Ohm Type-R Series Car Subwoofer
Power Handling:
Peak: 3000 watts
RMS: 300-1000 watts
Impedance: Dual 4 ohms
Kevlar treated pulp cone
Durable HAMR Santoprene™ surround
Progressive Conex spider
Compound Radius Curve pole geometry
Oversized 2.6", High-Temperature, 4-Layer Dual Voice Coil
Frequency response: 26-300 Hz
Resonance Frequency (Fs): 31Hz
Top-mount depth: 6-3/8"
Sensitivity: 84dB

Subwoofer Series Type-R
Subwoofer Size 12"
Peak Power Handling 3000 watts
RMS Power Handling 600 watts
Voice Coil(s) Dual
Impedance (Per Voice Coil) 4 ohms
Frequency Response 24 - 200 Hz
Sensitivity 85 dB
Xmax (millimeters) 20 mm
Subwoofer Design Round / Circle
Main Cone Color Dark Gray
Woofer Composition Kevlar Fiber
Woofer Surround Santoprene Rubber
Subwoofer Grille Optional (Alpine KTE-12WG)
Re-Cone Kit Available No

Product Summary:
Manufacturer: Alpine
Model number: SWR-12D4
UPC: 793276011787
Weight: 26.00 lbs
Warranty Provider: 1 Year Manufacturer Warranty




Subwoofer Size
Voice Coil


Peak Power
Warranty, Returns, And Additional Information

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  • Nicholas F.
  • 8/21/2012 8:19:52 PM
  • Ownership: more than 1 year
  • Verified Owner

5 out of 5 eggsApline Type R 12" Pounds!!!

Pros: Absolutely an amazing sounding subwoofer. I own one of these wired to 2 Ohm. This subwoofer is extremely high quality! This Thing Pounds I cannot believe this one subwoofer sounds like 6 of my old ones. There are no unwanted sounds. like some high end subwoofers have. Easy to install. I like that it has jumpers that makes it easy to wire . instead of having to run wires to each set of voice coils.

Cons: None, Id buy this a 1000 times over I LOVE IT!!

4 out of 4 people found this review helpful. Did you? Yes No

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Home > 
Automotive & Industrial > 
Car Electronics > 
Car Subwoofers > 
Alpine > 
Item#: 9SIA0ZA3V45858
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