Alpine R2-W12D2 R Series 12" 750W RMS (2250W Peak Power Handling) 2 Ohm, Dual Voice Coil Car Subwoofer
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What's Inside?
- • 12" Dual 2-ohm voice coil subwoofer
- • Plastic trim ring
- • (2) 4.5" jumper wires (each wire has a single banana connector on both ends)
- • On-line product registration information
- • Warranty information (English/ French)
- • Important Notice (English /French)
- • Application Guide
- • Owner's Manual
Why Choose Alpine R2-W12D2 Component Car Subwoofer?
Precise Bass Performance
The Alpine R2-W12D2 is a 12-inch dual 2-ohm voice coil subwoofer engineered to deliver powerful and precise bass performance in your audio car system. This subwoofer is designed with high-quality components and advanced technologies to enhance your audio experience.
Cone Made of Kevlar-treated Pulp
The R2-W12D2 features a cone made of Kevlar-treated pulp, which combines strength and lightness for accurate and responsive bass reproduction. It can handle high power levels with its RMS power rating of 750 watts and peak power handling of 2250 watts, allowing for deep and impactful bass output.
Dual 2-ohm Voice Coils
Equipped with dual 2-ohm voice coils, this subwoofer provides flexibility in wiring options to match different amplifier configurations. It allows for easy impedance adjustments and compatibility with various car audio setups.
Ensures Precise Cone Movement
The subwoofer utilizes Alpine's HAMR (High Amplitude Multi-Roll) surround, which ensures precise cone movement and minimizes distortion. This technology contributes to the subwoofer's ability to reproduce low frequencies accurately and efficiently.
Frequently Asked Questions (FAQ)
- • What enclosure type provides the best performance for this 12-inch subwoofer?
The subwoofer performs exceptionally well in either a sealed or ported enclosure when built to the recommended internal volume. Choosing the correct enclosure allows you to prioritize either tighter bass response or greater low-frequency output.
- • Why doesn't the bass hit as hard as I expected after installation?
Weak bass is often caused by improper amplifier gain, incorrect crossover settings, or an enclosure that does not meet the recommended specifications. Carefully tuning the amplifier and confirming the enclosure dimensions usually improves overall bass performance.
- • Can I wire the dual 2-ohm voice coils in different configurations?
Yes, the dual voice coil design offers multiple wiring options to match compatible amplifier impedance requirements. Following the recommended wiring diagrams helps maximize output while protecting both the amplifier and the subwoofer.
- • Why does the amplifier shut off or enter protection mode during heavy bass?
This is commonly caused by an incorrect speaker load, insufficient electrical power, overheating, or wiring mistakes. Verifying the voice coil wiring and ensuring proper amplifier ventilation usually prevents this issue.
- • How much amplifier power should I pair with this?
For the best performance, use an amplifier whose RMS output closely matches the subwoofer's recommended continuous power rating. A properly matched amplifier delivers cleaner bass while reducing the risk of distortion or equipment damage.
- • Why does the subwoofer make a popping or bottoming-out sound at high volume?
This can happen when the amplifier is clipping, the enclosure is not properly designed, or the subwoofer is being pushed beyond its intended limits. Reducing the gain and verifying the enclosure specifications usually solves the problem.
- • Can I install two of these subwoofers in the same audio system?
Yes, many enthusiasts use a pair of subwoofers to increase bass output and achieve more even low-frequency response throughout the vehicle. Be sure your amplifier, enclosure, and vehicle's electrical system are designed to support the additional power demand.
- • Does this require a break-in period before it performs its best?
Yes, many owners notice smoother bass response after several hours of moderate listening. This allows the suspension components to loosen naturally and operate more efficiently over time.
- • Why does my trunk or interior vibrate so much after installing the subwoofer?
The increased low-frequency output can cause loose trim panels, license plates, and interior components to resonate. Installing sound-deadening material and tightening loose panels can greatly reduce unwanted vibrations.
- • How do I troubleshoot a lack of sound?
First, check your signal cables and verify that your amplifier is receiving both a remote turn-on signal and power. If those are correct, use a multimeter to check the continuity of the voice coils at the terminal cups.
- Diameter : 12 Inch
- Sensitivity : 85 dB
- Impedance : 2 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 : 1.5 Cubic ft.
- Mounting Depth : 6.5 Inches
- RMS Power Handling : 750 Watts
Features:
- Dual Voice Coil Design: 12" DVC subwoofer with configuration jumpers for flexible wiring and optimal power delivery.
- Kevlar Reinforced Pulp Cone: Durable, high-performance cone provides accurate, hard-hitting bass response with reduced distortion.
- Polypropylene/Ceramic Composite Dust Cap: Adds structural rigidity, ensuring precise cone movement even under high power.
- H.A.M.R. Surround Technology: High-Amplitude Multi-Roll Santoprene™ surround allows greater cone excursion for powerful, controlled bass output.
- Double-Stacked Magnet Motor: Large dual magnet structure enhances motor strength and efficiency, producing deeper and tighter low frequencies.
Specifications:
- Subwoofer Size: 12-inch
- Voice Coil Configuration: Dual 2-Ohm (Selectable 1Ω or 4Ω wiring)
- Cone Material: Kevlar Reinforced Paper
- Surround Material: Santoprene Rubber (H.A.M.R. Surround)
- Basket Material: Cast Aluminum Frame
- Grille: Not Included
- Free-Air Operation: No
- Sensitivity: 85 dB (1W/1m)
- Frequency Response: 24 – 200 Hz
- RMS Power Handling: 750 Watts (Continuous)
- Peak Power Handling: 2250 Watts
- Top-Mount Depth: 6.47" (6-1/2")
- Cutout Diameter: 10-7/8"
- Frame Dimensions: 12.395" (Width) × 12.395" (Length)
- Vas (Equivalent Compliance Volume): 36.9 Liters
- Fs (Resonant Frequency): 29 Hz
- Qts (Total Q Factor): 0.41
- Xmax (Maximum Linear Excursion): 20 mm
- Recommended Sealed Enclosure: 0.65 – 1.1 cu. ft.
- Recommended Ported Enclosure: 1.1 – 1.6 cu. ft.
- UPC: 793276084668
- Weight: 10
- 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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Man, these 12's are absolute beasts! I've always been loyal to Alpine, and these bad boys just solidified that love. Had them placed in a ported box and they truly hit hard and they hit consistently. If you're in the market, trust me, these are the ones to go for. Highly, highly recommend them.
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Exceptional subs. Clean, pure bass. Love how it hits hard that you can really to the chest. Would totally buy another one
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Got it a day earlier, and immediately had it set up by my friend with the custom box he made for my truck. Bass is superb and it's loud when cranked up. Perfect for hip hop tracks
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I brought this soaker to replace my older r series 12" and the sound quality doesn't disappoint at all.
