Alpine RS-W12D2 R-Series 12" 600W RMS (1800W Peak Power Handling) 2 Ohms, Dual Voice Coil Shallow Mount Component Car Subwoofer
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What's Inside?
- • 12" Dual 2-Ohm Voice Coil Shallow Mount Subwoofer
- • (2) 18" jumper wires (12-gauge)
- • Plastic trim ring
- • 2.5mm Hex key
- • Application guide (English/ French)
- • On-line product registration information
- • Important Notice (English/ French)
- • Owner's Manual
Why Choose Alpine RS-W12D2 Component Car Subwoofer?
Big Bass. Small Footprint.
Need serious bass but don't have room for a full-size subwoofer setup? The Alpine RS-W12D2 gives you the deep, powerful bass you want in a slim 12" shallow-mount design. With 600W RMS power handling and a dual 2-ohm voice coil, this R-Series shallow subwoofer is built to bring more impact to your car audio system without taking up excessive space.
Slim Size. Hard-Hitting Bass.
The RS-W12D2 is a great choice when you want to upgrade your bass without sacrificing valuable cargo space. Its shallow design makes it easier to fit into compact enclosures, while the R-Series construction is built to deliver strong, controlled low-frequency performance. The dual 2-ohm voice coils also give you flexible wiring options when matching the subwoofer to your mono amplifier.
Pack More Bass Into Less Space
Pair the Alpine RS-W12D2 with a properly matched mono amplifier and the right enclosure, and you can build a compact system that still hits with authority. Whether you're replacing a weak factory subwoofer or adding more bass to an upgraded car audio system, the RS-W12D2 delivers the R-Series performance you want in a space-saving package.
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 RS-W12D2 Highlights
R-SERIES BASS
12" High-Performance Subwoofer
Bring powerful low-end sound to your vehicle with Alpine's R-Series 12-inch subwoofer, built to deliver deep and hard-hitting bass.
SHALLOW MOUNT
Ultra-Shallow 3.25" Depth
The ultra-shallow 3.25-inch mounting depth makes it easier to add strong bass in tight vehicle spaces where a standard subwoofer may not fit.
POWERFUL OUTPUT
600W RMS Power Handling
Handles up to 600 watts RMS and 1,800 watts peak power to produce deep, powerful bass that adds impact to your music.
DUAL VOICE COILS
Dual 2-Ohm Voice Coils
Dual 2-ohm voice coils provide flexible wiring options, allowing the subwoofer to be configured for either a 1-ohm or 4-ohm final load.
PREMIUM CONSTRUCTION
Strong & Durable Build
A cast aluminum frame, polypropylene cone, aluminum dust cap, and butyl rubber surround provide a durable design built for demanding bass performance.
DEEP EXCURSION
20mm X-Max Excursion
The 20mm X-Max cone excursion allows the subwoofer to move with authority, helping produce deep and impactful bass from its compact design.
ENCLOSURE FLEXIBILITY
Sealed Enclosure Ready
Designed for sealed enclosures ranging from 0.65 to 1.55 cubic feet, giving you flexibility when building a custom vehicle sound system.
Alpine R2-W12D2 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-W12D2, from balanced single-subwoofer builds to high-output bass systems
Amplifier Matching Overview
R2-W12D2 Power Rating: 750W RMS / 2,250W Peak
Voice Coil Configuration: Dual 2Ω voice coils
Ideal Amp Target: Approximately 600W-750W RMS for a single R2-W12D2
Best Setup: Alpine S2-A60M 600W mono amplifier at 1Ω
Best Overall Match – 600W RMS Mono Amplifier
The S2-A60M is the best overall match for a single Alpine R2-W12D2. With the dual 2Ω voice coils wired in parallel for a 1Ω load, the amplifier delivers 600W RMS at 1Ω. This provides strong power for the R2-W12D2 while keeping the amplifier output below the subwoofer's 750W RMS power handling.
R-Series Alternative – 500W RMS at 4Ω
The R2-A75M is a strong R-Series alternative for the R2-W12D2. When the dual 2Ω voice coils are wired in series for a 4Ω load, the amplifier delivers 500W RMS. This gives the R2-W12D2 solid usable power while keeping the system below its 750W RMS rating.
Why the S2-A60M Is the Recommended Choice
Strong Power Match: The S2-A60M provides 600W RMS at 1Ω, giving the R2-W12D2 strong usable power
DVC Compatibility: The R2-W12D2's dual 2Ω voice coils can be wired in parallel for a 1Ω final load
Below RMS Rating: The 600W RMS output stays below the R2-W12D2's 750W RMS power handling
Class-D Design: The S2-A60M uses Alpine's Class D amplifier circuit for efficient subwoofer power
Simple Setup: One R2-W12D2 paired with one S2-A60M creates a straightforward single-subwoofer system
Recommended R2-W12D2 Amplifier Settings
Gain Setting: Set the gain for clean output and avoid pushing the R2-W12D2 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-W12D2, the S2-A60M is the easiest amplifier match because its 600W RMS output at 1Ω works well with the subwoofer's dual 2Ω voice coils. The R2-A75M is a strong R-Series alternative when the subwoofer is wired to a 4Ω final load.
Frequently Asked Questions (FAQ)
- • Can this subwoofer produce competition-level bass?
It is designed for high-output performance and can deliver powerful bass with the right amplifier and enclosure. While it performs exceptionally well, overall output depends on the entire audio system.
- • Why does my amplifier go into protect mode when I play bass?
This is often caused by incorrect voice coil wiring, low impedance, or inadequate power wiring. Double-check the wiring configuration and ensure your amplifier supports the final load.
- • Can I use a ported enclosure for louder bass?
Yes, a properly designed ported enclosure can produce higher output and deeper bass than a sealed box. Make sure the enclosure follows the recommended internal volume and port specifications.
- • Why does the bass sound stronger with the trunk open?
This is a common result of vehicle cabin acoustics and enclosure placement. Adjusting the enclosure position or phase settings can improve bass response inside the cabin.
- • Is one 12-inch subwoofer enough for a complete sound system?
Yes, one quality 12-inch subwoofer can provide excellent low-frequency performance for most listeners. Those wanting maximum output may choose to install two instead.
- • Why does the subwoofer sound tighter after a few days?
The suspension gradually loosens during normal use, which is part of the break-in process. Many users notice smoother bass response after several hours of moderate playback.
- • Can I install this in a custom fiberglass enclosure?
Yes, as long as the enclosure provides the recommended internal air volume and mounting depth. A properly built custom enclosure can perform just as well as a traditional MDF box.
- • Why do I hear air noise coming from the enclosure?
Air leaks or an improperly designed port are the most common causes of this issue. Inspect the enclosure for gaps and ensure the port dimensions meet the recommended specifications.
- • Will upgrading my amplifier make the bass louder?
Yes, if your current amplifier isn't providing the recommended RMS power. Make sure the new amplifier is properly matched and tuned to avoid distortion or damage.
- • What's the biggest mistake people make when installing a subwoofer?
Many users choose the wrong enclosure size or set the amplifier gain too high. Following the manufacturer's recommendations will provide better performance and improve long-term reliability.
Alpine RS-W12D2 Related Videos
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Learn How To Wire Subwoofers

- Diameter : 12 Inch
- Sensitivity : 81 dB
- Impedance : 1/4 Ohm
- Frequency Response : 27-200 Hz
- Peak Power Handling : 1800 Watts
- Shallow Mount : Yes Inch
- Number of Voice Coils : Dual
- Suggested Sealed Box Volume : 0.9 Cubic ft.
- Suggested Ported Box Volume : 1.2 Cubic ft.
- RMS Power Handling : 600 Watts
Features:
- 12” High-Performance Shallow Bass Driver: Engineered to deliver deep, impactful bass in compact spaces such as under seats or in tight enclosures, without compromising sound quality.
- Alpine Gen2 DD Linear Magnetic Circuit: Uses a next-generation direct-drive design to maximize efficiency, provide smoother cone control, and deliver precise low-frequency output.
- Cast Aluminum Frame: Rigid and lightweight frame construction minimizes unwanted vibrations and flex, ensuring consistent performance at high volume levels.
- Aluminum Dust Cap: Strengthens the cone structure, adds durability, and maintains cone rigidity for clear and accurate bass response.
- Neodymium Magnet: High-energy magnet motor system provides powerful bass output while keeping the overall subwoofer depth shallow.
- Dual Voice Coil Design: Offers wiring flexibility for multiple configurations, making it easier to match with your amplifier and system setup.
- Rubber Surround: Enhances cone excursion while providing durability and long-lasting performance, allowing for greater air movement and punchy bass.
- Optimized Shallow Mount Design: Perfect for vehicles with limited space, allowing high output without requiring a deep enclosure.
- Precision Engineering: Every component, from the frame to the cone and magnet assembly, is optimized for low distortion, high excursion, and maximum output.
Specifications:
- Size: 12-inch
- Impedance (Ohms): 1, 4
- Cone Material: Polypropylene
- Surround Material: Rubber
- Basket Material: Cast Aluminum
- Grille: None included
- Free-Air: No
- Dual Voice Coil: Yes
- Sensitivity: 82 dB at 1 watt
- Frequency Response: 25 – 100 Hz
- Max RMS Power Handling: 600 watts
- Peak Power Handling (Watts): 1800 watts
- Top Mount Depth (inches): 3 5/16
- Bottom Mount Depth (inches): 3 11/16
- Cutout Diameter or Length (inches): 11 11/16
- Frame Width: 13.242
- Frame Length: 13.242
- Vas (liters): 42.04
- Fs (Hz): 28
- Qts: 0.98
- Xmax (millimeters): 20
- UPC: 793276084521
- 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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Pricey but whooah! Its shallow design is amazing considering how good it sounds and how it can go low to 25 Hz for a 12 inch. Power is really there and you need a premium amp to push this sub to its best performance. You can’t really go wrong with Alpine!