Alpine R2-W12D4 Next Gen R-Series 12" 750W RMS (2250W Peak Power Handling) 4 Ohm, Dual Voice Coil Component Car Subwoofer
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What's Inside?
- • 12" 4-Ohm Dual Voice Coil Component Car Subwoofer
- • Plastic trim ring
- • (2) 4.5" jumper wires (each wire has a single banana connector on both ends)
- • Application guide (English/ French)
- • On-line product registration information
- • Warranty information (English/ French)
- • Important Notice (English /French)
- • Owner's Manual
Why Choose Alpine R2-W12D4 Component Car Subwoofer?
Serious Bass Starts Here
The Alpine R2-W12D4 12-inch R-Series subwoofer is built for car audio enthusiasts who want deep, powerful bass without giving up control. With 750W RMS and 2,250W peak power handling, this next-generation R-Series subwoofer is ready for high-output systems that demand serious low-end performance. Its dual 4-ohm voice coils also give you more flexibility when building your system.
More Motor Power. Tighter Bass.
Alpine gives the R2-W12D4 a larger double-stacked magnet structure to increase motor force for deeper bass and tighter cone control. A Kevlar-reinforced pulp cone, polypropylene/ceramic composite dust cap, and Alpine's H.A.M.R. surround help the 12-inch subwoofer handle high excursion while keeping the bass accurate and controlled. With 20mm of X-Max and a frequency response down to 24Hz, this is a subwoofer made to hit hard.
Built for Your Next Bass System
The R2-W12D4 is more than just a loud 12-inch subwoofer. Its DVC configuration jumpers, push-type terminals supporting up to 8 AWG wire, and optional twist-lock grille compatibility make it flexible for different car audio builds. If you're upgrading your bass system and want the deep, authoritative sound Alpine R-Series is known for, the R2-W12D4 is a serious choice for your next setup.
Alpine 12-Inch Subwoofer Comparison Chart | S2-W12 vs R2-W12 vs RS-W12 vs HDZ-W12 vs W12S4
| Ultimate Alpine 12" Subwoofer Performance Comparison |
Alpine S2-W12D4 / S2-W12D2
Next-Gen S-Series 12" Subwoofer – Powerful Bass
BEST VALUE
- • 12" S-Series Subwoofer
- • 600W RMS / 1,800W Peak
- • DVC 4Ω or DVC 2Ω options
- • 15mm X-Max
- • Excellent daily-driver bass
- • Great performance for the price
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Alpine R2-W12D4 / R2-W12D2
Next-Gen R-Series 12" Subwoofer – High-Output Bass
HIGH PERFORMANCE
- • 12" R-Series Subwoofer
- • 750W RMS / 2,250W Peak
- • DVC 4Ω or DVC 2Ω options
- • 20mm X-Max
- • High-output bass performance
- • Ideal for serious car audio builds
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Alpine RS-W12D4 / RS-W12D2
R-Series Shallow 12" Subwoofer – Powerful Bass in a Slim Design
SHALLOW PERFORMANCE
- • 12" R-Series Shallow Subwoofer
- • 600W RMS / 1,800W Peak
- • DVC 4Ω or DVC 2Ω options
- • 20mm X-Max
- • 3.25" shallow mounting depth
- • Ideal for space-limited installations
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Alpine HDZ-W12
Alpine Status 12" Subwoofer – Premium Bass & High-Power Performance
PREMIUM PICK
- • 12" Alpine Status Subwoofer
- • 800W RMS / 2,400W Peak
- • 20mm X-Max
- • Premium carbon-fiber dust cap
- • Cast-aluminum frame construction
- • Designed for premium systems
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Alpine W12S4
12" Single Voice Coil Subwoofer – Affordable Bass Upgrade for Entry-Level
BUDGET PICK
- • 12" Single Voice Coil Subwoofer
- • 250W RMS / 750W Peak
- • Single 4Ω voice coil
- • 5.31" mounting depth
- • Simple amplifier pairing
- • Great for entry-level systems
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Alpine R2-W12D4 Highlights
POWERFUL BASS
750W RMS Power Handling
Experience deep, hard-hitting bass with 750 watts RMS power handling and up to 2,250 watts of peak power.
R-SERIES PERFORMANCE
High-Output 12" Subwoofer
The 12-inch R-Series design delivers powerful low-end impact with deep bass performance for an exciting car audio experience.
FLEXIBLE WIRING
Dual 4-Ohm Voice Coils
Dual 4-ohm voice coils provide flexible wiring options, making it easier to match the subwoofer with your amplifier and system setup.
DURABLE CONSTRUCTION
Kevlar-Reinforced Pulp Cone
The Kevlar-reinforced pulp cone provides a strong, rigid design built to handle demanding bass performance at high volume levels.
HIGH EXCURSION
H.A.M.R. Multi-Roll Surround
The H.A.M.R. surround supports smooth cone movement and up to 20mm of X-Max for deep, powerful, and controlled bass.
STRONG MOTOR FORCE
Large Double-Stacked Magnets
The large double-stacked magnet structure provides strong motor force for powerful output, better control, and deep bass performance.
PREMIUM DESIGN
Polypropylene & Ceramic Dust Cap
The polypropylene and ceramic composite dust cap adds strength and damping to help maintain clean and controlled bass performance.
Alpine R2-W12D4 Recommended Amplifiers | Best 12" R-Series Subwoofer Amp Pairings for Powerful Bass
Build Your Alpine R-Series Subwoofer System
Real-world amplifier recommendations for the Alpine R2-W12D4, from balanced single-subwoofer builds to compact bass systems
Amplifier Matching Overview
R2-W12D4 Power Rating: 750W RMS / 2,250W Peak
Voice Coil Configuration: Dual 4Ω voice coils
Ideal Amp Target: Approximately 750W RMS for a single R2-W12D4
Best Setup: Alpine R2-A75M 750W mono amplifier at 2Ω
Best Overall Match – 750W R-Series Mono Amplifier
The R2-A75M is the best overall match for a single Alpine R2-W12D4. With the dual 4Ω voice coils wired for a 2Ω load, the amplifier delivers 750W RMS, matching the subwoofer's 750W RMS power handling. This makes it a simple and well-balanced R-Series pairing.
High-Output Option – 1200W RMS at 2Ω
The R2-A150M is a higher-powered option for those who want more amplifier headroom. It produces up to 1,200W RMS at 2Ω, so the gain should be properly adjusted when powering a single R2-W12D4 to keep the 750W RMS subwoofer within its recommended power range.
Strong Alternative – 600W RMS Mono Amplifier
The S2-A60M is a solid Alpine alternative for the R2-W12D4 when a slightly lower-powered setup is preferred. At 2Ω, it produces 600W RMS, giving the single R2-W12D4 strong usable power while staying below its 750W RMS rating.
Compact Option – 200W RMS Mono Power Pack
The KTA-200M is a compact option for installations where space is limited. It produces 200W RMS at 2Ω, so it will not drive the R2-W12D4 to its full 750W RMS capability, but it can still provide a noticeable bass upgrade in a small, easy-to-install setup.
Why the R2-A75M Is the Recommended Choice
Exact Power Match: The R2-A75M provides 750W RMS at 2Ω, matching the R2-W12D4's 750W RMS rating
R-Series Pairing: The R2-A75M and R2-W12D4 are both part of Alpine's R-Series lineup
DVC Compatibility: The R2-W12D4's dual 4Ω voice coils can be configured for a 2Ω final load
Efficient Class-D Design: The R2-A75M uses Alpine's Class-D amplifier circuit for efficient subwoofer power
Simple Setup: One R2-W12D4 paired with one R2-A75M creates a straightforward single-subwoofer system
Recommended R2-W12D4 Amplifier Settings
Gain Setting: Set the gain for clean output and avoid pushing the R2-W12D4 beyond its 750W RMS power handling
Low-Pass Filter: Start around 80Hz and adjust according to the enclosure and front-stage response
Bass EQ: Keep bass boost moderate to reduce unnecessary stress on the subwoofer
Subsonic Filter: Use a subsonic filter with a ported enclosure, typically set below the enclosure's tuning frequency
Phase: Adjust phase for the strongest and smoothest bass integration with the vehicle's front speakers
Pro Tip: For a single Alpine R2-W12D4, the R2-A75M is the easiest amplifier match because its 750W RMS output at 2Ω matches the subwoofer's 750W RMS rating. The S-A60M is a good lower-power alternative, while the compact KTA-200M works when installation space is the priority.
Frequently Asked Questions (FAQ)
- • What type of enclosure works best for this subwoofer?
This subwoofer performs well in both sealed and ported enclosures when built to the recommended specifications. Choosing the correct box design will have a major impact on bass quality and output.
- • Why does the subwoofer sound distorted at high volume?
Distortion is usually caused by amplifier clipping, excessive gain, or an improperly tuned enclosure. Correct amplifier settings and a properly designed enclosure will help produce cleaner bass.
- • Can I wire the dual voice coils in different ways?
Yes, the dual 4-ohm voice coils allow multiple wiring options depending on your amplifier. Always follow the recommended wiring diagrams to achieve the correct final impedance.
- • Why doesn't the subwoofer produce much bass?
Weak bass is often caused by incorrect wiring, improper crossover settings, or a poorly matched enclosure. Double-check the amplifier tuning and verify the enclosure meets the recommended specifications.
- • How much amplifier power does this subwoofer need?
It performs best when paired with an amplifier that delivers power within the manufacturer's recommended RMS rating. Using too little or too much power without proper tuning can reduce performance.
- • What is the best way to route my speaker wires?
To minimize the risk of electrical interference, keep your signal cables physically separated from the vehicle's power and ground wires. Ensure you use heavy-gauge wire, up to 8 AWG, to handle the current requirements and prevent voltage drop.
- • Can I use two of these subwoofers with one amplifier?
Yes, many users install two subwoofers if the amplifier supports the final wired impedance. Plan the wiring carefully to maximize performance while protecting your equipment.
- • Why does the subwoofer smell hot after playing loud music?
A slight odor during the initial break-in period can be normal, but a strong burning smell may indicate overheating or excessive power. Lower the volume and verify that the amplifier is properly tuned.
- • Do I need to break in the subwoofer before using full power?
Yes, many users recommend a short break-in period with moderate volume levels. This allows the suspension to loosen naturally for more consistent performance over time.
- • How do I determine if my amplifier has enough power?
This subwoofer is rated for 750W RMS, so you should use an amplifier that can provide clean power within this range to ensure reliable performance. Using an underpowered amplifier driven into clipping is more likely to damage the voice coils than a properly sized one.
Alpine R2-W12D4 Related Videos
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Learn How To Wire Subwoofers
- Diameter : 12 Inch
- Sensitivity : 84.6 dB
- Impedance : 4 Ohm
- Frequency Response : 24-200 Hz
- Peak Power Handling : 2250 Watts
- Number of Voice Coils : Dual
- Suggested Sealed Box Volume : .55 Cubic ft.
- Suggested Ported Box Volume : 1.71 Cubic ft.
- Mounting Depth : 6.5 Inches
- RMS Power Handling : 750 Watts
- Free Air : Yes
Features:
- Kevlar Reinforced Pulp Cone: Two-piece structural parabolic cone with Kevlar reinforcement for added strength, tear resistance, and reduced distortion at high output levels
- Oversized Dust Cap: Inverted polypropylene/ceramic composite dust cap increases rigidity for cleaner performance at extreme volume
- HAMRS Surround Design: Santoprene High Amplitude Multi Roll Surround allows greater excursion and higher SPL without sacrificing cone area
- Progressive Spider: Reinforced spider design with integrated tinsel leads ensures consistent control and eliminates mechanical noise during heavy excursion
- Compound Radius Pole Geometry: Patented motor structure delivers a more symmetrical magnetic field, improving efficiency, reducing distortion, and enhancing power handling
- Dual 4-Ohm Voice Coils: Provides flexible wiring options with 2 Ohm (parallel) or 8 Ohm (series) configurations for system matching
- Spring Post Terminals: Convenient single-side terminals accept up to 8-gauge wire, pin connectors, or banana plugs for easy installation
- Included Wiring Jumpers: Comes with terminal jumpers for quick and simple voice coil wiring in parallel or series configurations
- Sealed Enclosure Compatibility: Works in 0.65 to 1.1 ft³ sealed enclosures, with 0.85 ft³ as the ideal volume for balanced performance
- Ported Enclosure Compatibility: Optimized for 1.1 to 1.6 ft³ ported boxes, with 1.55 ft³ tuned to 36 Hz for deeper, more powerful bass output
Specifications:
- Size: 12-inch
- Impedance (Ohms): 2, 8
- Cone Material: Kevlar Reinforced Paper
- Surround Material: Santoprene Rubber
- Basket Material: Aluminum
- Grille: None included
- Free-Air: No
- Dual Voice Coil: Yes
- Sensitivity: 84.6 dB at 1 watt
- Frequency Response: 24 – 200 Hz
- Max RMS Power Handling: 750 watts
- Peak Power Handling (Watts): 2250 watts
- Top Mount Depth (inches): 6 1/2
- Bottom Mount Depth (inches): N/A
- Cutout Diameter or Length (inches): 10 7/8
- Frame Width: 12.395
- Frame Length: 12.395
- Vas (liters): 32.8
- Fs (Hz): 30
- Qts: 0.51
- Xmax (millimeters): 20
- UPC: 793276084651
- Weight: 15
- Authorized Internet Dealer
Warranty: 2 Year(s) Warranty.
This item is accompanied by a manufacturer's warranty. If it is found to be defective, it may be returned to OnlineCarstereo.com for repair within 1 year from the original date of purchase with proper return authorization.
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Liking these new Alpine subs, got one with a great deal, goes lower, hits truly hard. Excellent value for its performance. Very clean and powerful.
