Alpine RS-W12D4 R-Series 12" 600W RMS (1800W Peak Power Handling) Dual 4 Ohm Voice Coil Car Subwoofer
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What's Inside?
- • 12" Dual 4-Ohm Voice Coil Shallow Mount Subwoofer
- • Plastic Trim Ring
- • (2) 18" Jumper Wires (12-gauge)
- • 2.5mm Hex Key
- • Application guide (English/ French)
- • On-line product registration information
- • Warranty information (English/ French)
- • Important Notice (English/ French)
- • Owner's Manual
Why Choose Alpine RS-W12D4 Component Car Subwoofer?
Massive Bass in a Minimal Space
Get deep, powerful bass from an ultra-shallow design that fits tight spaces without sacrificing performance—featuring up to 600W RMS output, 20mm of cone excursion, and a 4-inch oversized voice coil with a neodymium magnet for unmatched control and impact.
Precision Bass and Powerful Delivery
Experience tight, accurate bass with Gen2 DD-Linear Magnetic Circuit technology for low distortion and high precision, while a rigid aluminum dust cap ensures fast response and clean, hard-hitting bass projection.
Built to Last and Protected to Perform
Designed for durability, the die-cast aluminum frame delivers long-lasting strength, while the optional 12" grille kit (KTE-RS12G, sold separately) adds tough steel mesh protection to keep your subwoofer safe and sound.
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-W12D4 Highlights
POWERFUL BASS
600W RMS Power Handling
The RS-W12D4 handles 600 watts RMS and up to 1,800 watts peak power for deep, hard-hitting bass with serious output.
SHALLOW DESIGN
3.25" Mounting Depth
The shallow 3.25-inch mounting depth makes this 12-inch subwoofer a great choice for trucks, compact enclosures, and tight installation spaces.
FLEXIBLE WIRING
Dual 4-Ohm Voice Coils
Dual 4-ohm voice coils provide flexible wiring options for matching the RS-W12D4 to your amplifier and system configuration.
HIGH EXCURSION
20mm X-Max
Up to 20mm of X-Max allows the cone to move farther, helping produce deeper bass and powerful low-frequency output from a shallow design.
HEAVY-DUTY PERFORMANCE
4" High-Temperature Voice Coil
The large 4-inch high-temperature voice coil is designed to handle high power while maintaining reliable and controlled bass performance.
PRECISION CONTROL
Gen2 DD Linear Magnetic Circuit
Alpine's Gen2 DD Linear Magnetic Circuit helps maintain precise cone control for clean and powerful bass at high excursion levels.
DURABLE CONSTRUCTION
Rigid Cast Aluminum Frame
The rigid cast aluminum frame provides a strong foundation for the subwoofer while helping maintain stability during high-output bass playback.
Alpine RS-W12D4 Recommended Amplifiers | Best 12" R-Series Shallow Subwoofer Amp Pairings for Powerful Bass
Build Your Alpine R-Series Shallow Subwoofer System
Real-world amplifier recommendations for the Alpine RS-W12D4, from single-subwoofer builds to high-output bass systems
Amplifier Matching Overview
RS-W12D4 Power Rating: 600W RMS / 1,800W Peak
Ideal Amp Range: Approximately 500W – 750W RMS for a single subwoofer
RS-W12D4: Dual 4Ω voice coil configuration
Single-Sub Wiring: Wire both 4Ω voice coils in parallel for a 2Ω final load
Best Setup: Alpine R2-A75M 750W mono amplifier for a single RS-W12D4
Best Overall Match – 750W R-Series Mono Amplifier
The R2-A75M is an excellent Alpine match for a single RS-W12D4. Wire the dual 4Ω voice coils in parallel for a 2Ω final load. Its 750W RMS capability provides strong amplifier headroom while the gain can be properly adjusted to keep the 600W RMS subwoofer within its recommended power range.
Exact Power Alternative – 600W Mono Amplifier
The S2-A60M is a great choice when you want amplifier power that closely matches the RS-W12D4. With the dual 4Ω voice coils wired in parallel to a 2Ω final load, the amplifier can provide 600W RMS for a well-balanced single-subwoofer setup.
High-Output Option – 1200W Mono Amplifier
The S2-A120M is a high-output option when you want plenty of amplifier headroom. With the RS-W12D4's dual 4Ω voice coils wired in parallel, the final load is 2Ω. The S2-A120M can deliver up to 1,200W RMS at 2Ω, so the gain must be properly adjusted to keep the 600W RMS subwoofer within its recommended power range.
Strong Alternative – 800W Class-D Mono Amplifier
The CXA800.1 is a strong third-party alternative for a single RS-W12D4. With the dual 4Ω voice coils wired in parallel for a 2Ω final load, the amplifier produces 600W RMS, closely matching the subwoofer's 600W RMS power rating.
Why the R2-A75M Is the Recommended Choice
Strong Power Match: The R2-A75M provides 750W RMS at 2Ω, giving the RS-W12D4 useful amplifier headroom
600W RMS Subwoofer: The RS-W12D4 is rated for 600W RMS, so the amplifier gain should be adjusted accordingly
DVC Compatibility: The RS-W12D4's dual 4Ω voice coils can be wired in parallel for a 2Ω final load
R-Series Pairing: The R2-A75M keeps the amplifier and subwoofer within Alpine's R-Series lineup
Class-D Design: The mono Class-D amplifier provides efficient power for a dedicated subwoofer system
RS-W12D4 Dual Voice Coil Amplifier Matching
Voice Coil Configuration: The RS-W12D4 features dual 4Ω voice coils
Parallel Wiring: Wire both 4Ω voice coils in parallel for a 2Ω final impedance
Series Wiring: Wire the voice coils in series for an 8Ω final impedance when required by the amplifier
Best Match: A 2Ω-stable mono amplifier producing approximately 600W–750W RMS is a strong choice
High-Output Option: The S2-A120M can provide 1,200W RMS at 2Ω, but the gain must be properly adjusted for the 600W RMS subwoofer
Important: Always confirm the amplifier's RMS output at the final impedance before connecting the subwoofer
Recommended RS-W12D4 Amplifier Settings
Gain Setting: Set the gain for clean output and adjust the amplifier so the subwoofer is not pushed beyond its 600W RMS rating
Low-Pass Filter: Start around 80Hz and adjust according to the enclosure and front-stage response
Bass EQ: Keep bass boost moderate to maintain clean output and avoid 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
Recommended RS-W12D4 System Configurations
Single RS-W12D4: Pair one subwoofer with the Alpine R2-A75M for a high-output Alpine R-Series system
Exact Power Build: Use the Alpine S2-A60M for approximately 600W RMS at a 2Ω final load
High-Output Build: Use the Alpine S2-A120M for additional amplifier headroom with properly adjusted gain
Third-Party Build: The Kicker CXA800.1 provides another strong option and produces 600W RMS at 2Ω
Best Overall Build: Pair one RS-W12D4 with the R2-A75M for strong power, headroom and R-Series compatibility
Shallow-Space Build: The RS-W12D4 combines high power handling with a shallow design for installations where space is limited
Pro Tip: For a single Alpine RS-W12D4, the R2-A75M is a strong overall amplifier pairing. Wire the dual 4Ω voice coils in parallel for a 2Ω final load, then properly set the amplifier gain so the 600W RMS subwoofer receives clean, controlled power. If you want more amplifier headroom, the S2-A120M can also be used at 2Ω, but its 1,200W RMS output makes proper gain setting especially important.
Frequently Asked Questions (FAQ)
- • How do I wire the dual 4-ohm voice coils for the best performance?
You can wire the voice coils in series or parallel depending on your amplifier's supported impedance. Always verify the final load before connecting the amplifier.
- • Can this subwoofer play deep bass without sacrificing sound quality?
Yes, it is designed to deliver both powerful low-frequency output and excellent sound quality. The right enclosure and proper tuning are essential for the best results.
- • Why does my subwoofer sound louder after a few days of use?
This is a normal result of the suspension loosening during the break-in period. Many users notice smoother and deeper bass after several hours of playback.
- • Can I install this in a ported enclosure for more output?
Yes, a properly designed ported enclosure can produce greater bass output than a sealed box. Follow Alpine's recommended enclosure specifications for the best performance.
- • Why does the bass disappear when I sit in the driver's seat?
Vehicle acoustics can create bass cancellation at certain seating positions. Adjusting the enclosure placement or phase settings often improves bass response.
- • Is this a good option for high-powered daily systems?
Yes, it is built to handle demanding daily listening when paired with a properly matched amplifier. Correct tuning helps maintain reliability while delivering impressive bass.
- • Why do I hear a scratching noise during heavy bass?
A scratching sound may indicate over-excursion, amplifier clipping, or a damaged voice coil. Reduce the volume immediately and inspect the system before continued use.
- • Can I build a custom enclosure instead of buying a prefab box?
Yes, many enthusiasts build custom enclosures to maximize performance and fit their vehicle. Just make sure the internal volume and port dimensions meet Alpine's recommendations.
- • Why does the subwoofer seem to struggle with very low notes?
This is usually caused by an enclosure that isn't optimized for deep bass or by incorrect amplifier settings. A properly designed enclosure and careful tuning will improve low-frequency extension.
- • What's the best way to keep the subwoofer performing like new?
Avoid amplifier clipping, use the recommended enclosure, and keep all wiring secure. Regularly checking your system settings will help maintain clean bass and long-term reliability.
Alpine RS-W12D4 Related Videos
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Learn How To Wire Subwoofers
- Sensitivity : 81 dB
- Depth : 12 Inch
- Impedance : 4 Ohm
- Frequency Response : 26-200 Hz
- Peak Power Handling : 1800 Watts
- Shallow Mount : Yes Inch
- Number of Voice Coils : Dual
- RMS Power Handling : 600 Watts
Features:
- Ultra-Shallow Design: Big bass performance in a compact form—perfect for vehicles with limited space.
- Extreme Output Power: Delivers up to 600W RMS with 20mm of cone excursion for deep, powerful bass.
- Oversized Voice Coil: Equipped with a 4-inch voice coil and neodymium magnet for maximum control and output.
- Precise Bass Control: Gen2 DD-Linear Magnetic Circuit technology ensures low distortion and tight, accurate bass.
- Hard-Hitting Projection: Rigid aluminum dust cap provides fast response and clean bass projection.
- Rugged Build Quality: Die-cast aluminum frame offers durability and strength for long-lasting performance.
- Optional Grille Protection: Available 12" grille kit (KTE-RS12G, sold separately) shields your subwoofer with tough steel mesh.
Specifications:
- 12” High-Performance Shallow Bass Driver
- Alpine Gen2 DD Linear Magnetic Circuit
- Cast Aluminum Frame
- Aluminum Dust Cap
- Neodymium Magnet
- 4″ High Temperature Voice Coil
- Heavy-gauge Screw Terminals
- Compatible with KTE-RS12G Subwoofer Grille
- RMS Power Handling: 600W
- Peak Power Handling: 1800W
- X-Max: 20mm
- Nominal Impedance: 4ohms+4ohms
- Frequency Response: 26Hz-200Hz
- Sensitivity: (1W/1M): 81dB
- Voice Coil: 4″ (102mm)
- Mounting Dimensions: 295mm diameter x 81.7mm depth
- UPC: 793276084514
- 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.
