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Alpine MRN-W12S4-LB (MRN-W12S4-IB-LB)

1800W Peak (600W RMS) 12" Single 4-ohm Infinite Baffle Marine Subwoofer with Black LED Grille

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• Peak Power: 1800 watts
• RMS Power: 600 watts
• Impedance: Single 4 ohm
• Carbon Fiber Hybrid cone

Learn more about the mrnw12s4iblb
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List price $750.00
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$699.95

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Description


Alpine brand icon

Authorized dealer

Product Details:

  • 12" Single 4 ohm Subwoofer
  • Power Handling:
    • Peak: 1800 watts
    • RMS: 600 watts
  • Carbon Fiber Hybrid cone
  • Optimized for outdoor listening
  • Infinite baffle design
  • Waterproof Amphenol plug
  • IPX6 marine grade rating
  • ASTM B117 salt and fog resistant elements
  • ASTM G154 UV resistant elements
  • Impedance: Single 4 ohm
  • 20 mm Xmax
  • Also available in White (Sold separately):
  • Authorized Internet Dealer
  • Includes protective white subwoofer grille with LED
  • 1-year Manufacturer's Warranty

  • Priced Individually

Subwoofer Wiring Guide


Wiring Guide to Wire 1 Alpine MRN-W12S4-LB (MRN-W12S4-IB-LB) Subwoofer

Mono Amp

2 Channel Amp - Bridged

Wiring Guide to Wire 2 Alpine MRN-W12S4-LB (MRN-W12S4-IB-LB) Subwoofers

Mono Amp

2 Channel Amp

4 Channel Amp - Bridged

Wiring Guide to Wire 3 Alpine MRN-W12S4-LB (MRN-W12S4-IB-LB) Subwoofers

4 Channel Amp

Wiring Guide to Wire 4 Alpine MRN-W12S4-LB (MRN-W12S4-IB-LB) Subwoofers

Mono Amp

Mono Amp - Option 1

2 Channel Amp

2 Channel Amp - Bridged

4 Channel Amp


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Specifications & Details


Subwoofer Specifications
Subwoofer Size
12"
Peak Power Handling
1800 watts
RMS Power Handling
600 watts
Voice Coil(s)
Single
Impedance (Per Voice Coil)
4 ohm
Xmax (millimeters)
20 mm
Subwoofer Design
Round / Circle
Main Cone Color
Black
Woofer Composition
Carbon Fiber Hybrid
Subwoofer Grille
Yes - Included
Re-Cone Kit Available
No
Recommended Enclosure Specifications
Shallow Mount Installation
No
What is in the box?
WITB: Subwoofers
Subwoofer
Warranty and Return Policy
Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Manufacturer

Item Details


Manufacturer:

Model Number:

MRN-W12S4-LB

Weight:

0.77lbs

Internal SKU:

mrnw12s4iblb

Internal Product ID:

229769

Customer Ratings & Reviews


Alpine MRN-W12S4-LB (MRN-W12S4-IB-LB) thumbnail image

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Modern vehicles often require specific brackets, wiring harnesses, and mounting solutions. A fit guide ensures:

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  • Installation is smoother, faster, and frustration-free
  • You get the correct accessories the first time

Whether you're replacing a factory stereo or upgrading your entire audio system, the Fit Finder eliminates uncertainty.