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12" Alpine R-W12D4 Subwoofer + MB Quart ZA21000.2 1000W Amplifier Bass Package

( Includes 1000W Amp and 4 Gauge Amp Kit )

Alpine
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EXCLUSIVE
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• 2250W Max
• 750W RMS
• Parabolic pulp/kevlar cone
• H.A.M.R. surround
• Cast aluminum frame with integral shorting sleeve
• Polypropylene, mica and talc dust cap
• 127 oz. Strontium ferrite segmented magnet

Learn more about the rw12d4_za210002_pkg1

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This item has been discontinued


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Description


Alpine brand icon

Authorized dealer

General Features:

  • 12" Dual 4 ohm Type-R Subwoofer
  • Power Handling:
    • Peak: 2250watts
    • RMS: 750 watts
  • Recommended power range: 300 - 750W RMS
  • CTA-2031 compliant power ratings
  • Parabolic pulp/kevlar cone
  • H.A.M.R. surround
  • Polypropylene, mica and talc dust cap
  • Reinforced cone neck and spider joint
  • Cast aluminum frame with integral shorting sleeve
  • 8AWG push terminals with VC configuration jumpers
  • 2.6" High excursion overhung voice coil
  • 127 oz. Strontium ferrite segmented magnet
  • Top-mount depth: 6-3/8"
  • Cutout diameter: 10-7/8"
  • Frequency Response: 24 - 200Hz
  • Sensitivity: 84.3dB
  • Resonance Frequency (Fs): 27Hz
  • Authorized Internet Dealer
  • 1-year Manufacturer's Warranty
  • Priced Individually

Subwoofer Wiring Guide


Wiring Guide to Wire 1 12" Alpine R-W12D4 Subwoofer + MB Quart ZA21000.2 1000W Amplifier Bass Package Subwoofer

Mono Amp

2 Channel Amp - Bridged

Wiring Guide to Wire 2 12" Alpine R-W12D4 Subwoofer + MB Quart ZA21000.2 1000W Amplifier Bass Package Subwoofers

Mono Amp

Mono Amp - Option 1

2 Channel Amp

2 Channel Amp - Bridged

4 Channel Amp - Bridged

Wiring Guide to Wire 3 12" Alpine R-W12D4 Subwoofer + MB Quart ZA21000.2 1000W Amplifier Bass Package Subwoofers

Mono Amp

4 Channel Amp

Wiring Guide to Wire 4 12" Alpine R-W12D4 Subwoofer + MB Quart ZA21000.2 1000W Amplifier Bass Package Subwoofers

Mono Amp

2 Channel Amp

2 Channel Amp - Bridged

4 Channel Amp


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Specifications & Details


Subwoofer Specifications
Series
Type-R Series
Subwoofer Size
12"
Peak Power Handling
2250 watts
RMS Power Handling
750 watts
Voice Coil(s)
Dual
Impedance (Per Voice Coil)
4 ohm
Voice Coil Diameter
2.6"
Frequency Response
24 - 200 Hz
Sensitivity
84.7 dB
Xmax (millimeters)
20 mm
Subwoofer Design
Round / Circle
Main Cone Color
Black
Woofer Composition
Kevlar Reinforced Pulp Paper
Woofer Surround
Santoprene Rubber
Recommended Enclosure Specifications
Recommended Enclosure Type
Ported / Vented
Sealed
Optimum Sealed Box Volume
.85 cubic feet
Optimum Ported Box Volume
1.71 cubic feet
Top-Mount Depth (Mounting Depth)
6-3/8"
Cutout Diameter
10-7/8"
Shallow Mount Installation
No
T/S Parameters (Electromechanical)
Free-Air Resonance (Fs)
28 Hz
Equivalent Compliance (Vas)
48 liters
Total Speaker Q Value (Qts)
.56
Electrical Q Value (Qes)
.61
Electrical Resistance of Voice Coil (Re)
3.6 ohm
Mechanical Q Value (Qms)
7.15
What is in the box?
Paperwork
User manual
Warranty/Registration card
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:

R-W12D4_ZA2-1000.2_BAK42

Weight:

29.10lbs

Internal SKU:

rw12d4_za210002_pkg1

Internal Product ID:

143927

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

  • You see only parts engineered for your exact vehicle
  • You avoid incompatible radios, speakers, or wiring
  • 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.