Alpine R2-W8D4 R Series 8" 350W RMS (1000W Peak Power Handling) Dual 4 Ohms, Voice Coil Car Subwoofer
We are a Alpine authorized dealer so you get up-to-date, fully warrantied products. Shipping is free to the lower 48 states on everything you order!
What's Inside?
- • (1) 8" Dual 4-ohm voice coil subwoofer
- • (2) 4.5" jumper wires (each wire has a single banana connector on both ends)
- • Plastic trim ring
- • Application guide (English/ French)
- • On-line product registration information
- • Warranty information (English/ French)
- • Important Notice (English /French)
- • Owner's Manual
Why Choose Alpine R2-W8D4 Component Car Subwoofer?
Hard-hitting Bass
Dreaming of the next generational subwoofer to install in your car audio system, the Alpine R2-W8D4, which belongs to Alpine's newly updated R-Series subwoofers that are known for exceptional bass accuracy, power output, and reliability, is an excellent option you should look into. The Alpine R2-W8D4 comes with a Kevlar-treated cone, giving this 8-inch subwoofer the durability necessary to produce high-quality bass at loud volumes for extended periods. It also has Alpine's High Amplitude Multi-Roll surround, which allows the cone to perform at a maximum level while having excellent thermal efficiency.
Wiring Flexibility
Its new motor structure comes with massive double-stacked magnets allowing the subwoofer to produce an extensive low-frequency response and more solid bass control. All R-Series subwoofers, including the R2-W8D4, come with dual voice coils with many configurations to choose from, making them flexible in many subwoofer applications. The Alpine R2-W8D4 is a subwoofer with a power output of 350 Watts RMS and 1000 Watts peak power at 4 ohms. Its sensitivity rate of 83.7 dB and frequency response of 30 up to 200 Hz tells it all that this 8-inch subwoofer won't have any problems performing heart-pounding bass tracks at loud volume levels.
Frequently Asked Questions (FAQ)
- • Is an 8-inch subwoofer powerful enough for everyday listening?
Yes, an 8-inch subwoofer can produce impressive bass while taking up less space than larger models. It is an excellent choice for listeners who want tight, accurate bass without sacrificing valuable cargo room.
- • Why does the bass seem weaker than I expected after installation?
Weak bass is often caused by incorrect amplifier gain, crossover settings, or an enclosure that does not match the recommended specifications. Proper tuning and using the correct enclosure usually make a significant difference in bass performance.
- • Can I wire the dual 4-ohm voice coils in different ways?
Yes, the dual voice coil design allows multiple wiring configurations to match compatible amplifier impedance requirements. Following the recommended wiring diagrams helps maximize performance while protecting your equipment.
- • Why does the amplifier enter protection mode when the volume is high?
This is commonly caused by incorrect speaker impedance, overheating, poor wiring, or low system voltage. Inspecting the wiring and confirming the amplifier's recommended speaker load usually resolves the issue.
- • What size amplifier should I pair with this subwoofer?
An amplifier that closely matches the subwoofer's recommended RMS power rating provides the best balance of output and long-term reliability. Proper power matching also reduces the risk of distortion and premature speaker failure.
- • Why do I hear a popping or clicking sound during heavy bass notes?
This can occur if the amplifier is clipping, the enclosure is improperly designed, or the subwoofer is exceeding its operating limits. Lowering the gain and verifying the enclosure specifications usually eliminates the unwanted noise.
- • Can I install two of these subwoofers in the same vehicle?
Yes, using two subwoofers can increase bass output while providing more even low-frequency response throughout the cabin. Make sure your amplifier and electrical system are capable of supporting the combined power requirements.
- • Does this subwoofer need a break-in period before it reaches its full potential?
Yes, many users notice smoother bass response after several hours of moderate listening. This gradual break-in allows the suspension components to loosen naturally for more consistent performance.
- • Why does my vehicle vibrate or rattle when the bass plays?
The stronger low-frequency output can cause trim panels, license plates, and other loose interior parts to resonate. Installing sound-deadening material and tightening loose components can greatly reduce unwanted rattles.
- Diameter : 8 Inch
- Sensitivity : 83.7 dB
- Impedance : 4 Ohm
- Frequency Response : 30-200 Hz
- Peak Power Handling : 1000 Watts
- Number of Voice Coils : Dual
- Suggested Sealed Box Volume : .70 Cubic ft.
- Suggested Ported Box Volume : .45 Cubic ft.
- Mounting Depth : 4.56 Inches
- RMS Power Handling : 350 Watts
Features:
- Dual Voice Coil Design: 8" DVC subwoofer with configuration jumpers for flexible wiring and optimized performance.
- Kevlar Reinforced Pulp Cone: High-strength cone construction ensures precise, dynamic bass reproduction.
- Polypropylene/Ceramic Composite Dust Cap: Rigid, lightweight design maintains accuracy under high power.
- H.A.M.R. Surround Technology: High-Amplitude Multi-Roll Santoprene™ surround allows for greater excursion and reduced distortion.
- Double-Stacked Magnet Motor: Powerful motor structure enhances control and delivers tight, clean low frequencies.
Specifications:
- Subwoofer Size: 8-inch
- Voice Coil Configuration: Dual 4-Ohm (Selectable 2Ω or 8Ω wiring)
- Cone Material: Kevlar Reinforced Paper
- Surround Material: Santoprene Rubber (H.A.M.R. Surround)
- Basket Material: Cast Aluminum
- Grille: Not Included
- Free-Air Operation: No
- Sensitivity: 83.7 dB (1W/1m)
- Frequency Response: 30 – 200 Hz
- RMS Power Handling: 350 Watts
- Peak Power Handling: 1000 Watts
- Top-Mount Depth: 4.631" (4-11/16")
- Cutout Diameter: 6-15/16"
- Frame Dimensions: 8.288" (Width) × 8.288" (Length)
- Vas (Equivalent Compliance Volume): 10.5 Liters
- Fs (Resonant Frequency): 43 Hz
- Qts (Total Q Factor): 0.53
- Xmax (Maximum Linear Excursion): 12 mm
- Recommended Sealed Enclosure: 0.2 – 0.5 cu. ft.
- Recommended Ported Enclosure: 0.3 – 0.75 cu. ft.
- UPC: 793276084699
- Weight: 8
- 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.
Do you own this product?
Write a review!
-
These small subs are giving me some deep deep bass!!! Loud and clear. It might be a little pricey but its all worth it. Would definitely recommend it to my friends
-
By far the best 8 inch sub I've ever tried. Excellent!
