Alpine W10S4 BassLine Series 10" 250W RMS (750W Peak Power Handling) 4 Ohms, Single Voice Coil Component Car Subwoofer
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What's Inside?
- • 10" Single Voice Coil Component Car Subwoofer
- • Adhesive backed foam gasket
- • Application Guide (English/ French)
- • On-line product registration information (English/ French/ Spanish)
- • Warranty information (English/ French)
- • Important Notice! (English/ French)
- • Owner's Manual
Why Choose Alpine W10S4 Component Car Subwoofer?
Big 10-Inch Bass Without the Big Price
Want to add serious low-end to your car audio system without spending a fortune? The Alpine W10S4 10-inch subwoofer is built for car audio enthusiasts who want deep, punchy bass at a budget-friendly price. With a polypropylene and mica cone, poly-foam surround, and a single 4-ohm voice coil, the W10S4 delivers the kind of bass that makes your favorite tracks feel more alive.
Tight, Powerful Bass That Hits Hard
The W10S4 handles 250 watts RMS and up to 750 watts peak power, giving you plenty of output for a daily-driver system or a budget-minded bass upgrade. Its optimized magnet circuit helps improve efficiency for tighter bass control and more output, while the 24Hz–200Hz frequency response lets this 10-inch subwoofer dig deep when the music demands it. With a 5-1/16-inch mounting depth, it also gives you more flexibility when planning your installation.
Build the Bass Setup You Actually Want
Whether you're upgrading your factory system or putting together a custom car audio setup, the Alpine W10S4 is an easy way to bring more impact to your music. Alpine recommends a 0.83 cu. ft. sealed enclosure for controlled, punchy bass or a 1.51 cu. ft. ported enclosure for more output. If you're looking for an affordable 10-inch car subwoofer that delivers solid power, tight bass, and classic Alpine performance, the W10S4 is ready to bring the low end.
Alpine 10-Inch Subwoofer Comparison Chart | S2-W10 vs R2-W10 vs RS-W10 vs HDZ-W10 vs W10S4 vs SWT-10
| Ultimate Alpine 10" Subwoofer Performance Comparison |
S2-W10D4 / S2-W10D2 Next-Gen S-Series 10" Subwoofer – Powerful Everyday Bass with Flexible Dual Voice Coil Options
BEST VALUE
- • 10" S-Series Subwoofer
- • 600W RMS / 1,800W Peak Power
- • Dual 2Ω or Dual 4Ω voice coil options
- • 15mm X-Max for strong bass excursion
- • 25Hz–215Hz frequency response
- • Carbon fiber/polypropylene cone
- • H.A.M.R. surround design
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R2-W10D4 / R2-W10D2 Next-Gen R-Series 10" Subwoofer – High-Output Bass with a Heavy-Duty Motor Structure
HIGH PERFORMANCE
- • 10" R-Series Subwoofer
- • 750W RMS / 2,250W Peak Power
- • Dual 2Ω or Dual 4Ω voice coil options
- • 20mm X-Max for massive excursion
- • 26Hz–200Hz frequency response
- • Double-stacked magnet structure
- • Kevlar-reinforced pulp cone
- • 6" mounting depth
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RS-W10D4 / RS-W10D2 R-Series Shallow 10" Subwoofer – Serious Bass Performance for Space-Constrained Builds
BEST SHALLOW
- • 10" R-Series Shallow Subwoofer
- • 600W RMS / 1,800W Peak Power
- • Dual 2Ω or Dual 4Ω voice coil options
- • 20mm X-Max
- • 29Hz–200Hz frequency response
- • 4" voice coil
- • Neodymium magnet
- • 3.25" mounting depth
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HDZ-W10 Alpine Status 10" Subwoofer – Premium High-Output Bass and Audiophile-Level Construction
PREMIUM
- • 10" Alpine Status Subwoofer
- • 800W RMS / 2,400W Peak Power
- • Dual voice coil
- • 20mm linear excursion
- • 24Hz–200Hz frequency response
- • Triple-stacked strontium ferrite magnets
- • Carbon-fiber dust cap
- • Cast-aluminum frame
- • 7.44" mounting depth
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W10S4 Alpine 10" Bass Series Subwoofer – Affordable Bass for Everyday System Upgrades
BUDGET PICK
- • 10" Bass Series Subwoofer
- • 250W RMS / 750W Peak Power
- • Single 4Ω voice coil
- • 24Hz–200Hz frequency response
- • Designed for everyday bass upgrades
- • Easy amplifier matching
- • Budget-friendly performance
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SWT-10S4 / SWT-10S2 Truck Series 10" Subwoofer – Compact Bass Performance for Trucks and Space-Limited Installations
TRUCK / COMPACT
- • 10" Truck Series Subwoofer
- • 350W RMS / 1,000W Peak Power
- • Single 2Ω or Single 4Ω options
- • 30Hz–200Hz frequency response
- • 4.19" mounting depth
- • Designed for truck installations
- • Space-conscious enclosure design
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Alpine W10S4 Highlights
POWERFUL BASS
250W RMS Power Handling
Add powerful low-end impact to your car audio system with 250 watts RMS power handling and up to 750 watts peak power.
10" SUBWOOFER
Deep, Hard-Hitting Bass
The 10-inch woofer delivers rich and powerful bass that adds more depth and excitement to your favorite music.
DURABLE CONSTRUCTION
Mica-Injected Polypropylene Cone
The rigid mica-injected polypropylene cone is built for reliable performance while helping produce clean and controlled bass.
ENCLOSURE FLEXIBILITY
Sealed or Ported Enclosure Ready
Build your system your way with enclosure options for both sealed and ported designs to match your preferred bass response.
SMOOTH BASS RESPONSE
Wide Frequency Response
A 24Hz–200Hz frequency response helps deliver deep low notes and smooth bass across a wide range of music.
DURABLE SURROUND
Flexible Poly-Foam Surround
The flexible poly-foam surround allows smooth cone movement for strong bass output and dependable everyday performance.
EASY SYSTEM UPGRADE
Compact 5-1/16" Mounting Depth
The practical 5-1/16-inch mounting depth makes the W10S4 a great choice for adding bigger bass without taking up excessive installation space.
Alpine W10S4 Recommended Amplifiers | Best 10" S-Series Subwoofer Amp Pairings for Powerful Bass
Build Your Alpine S-Series 10" Subwoofer System
Real-world amplifier recommendations for the Alpine W10S4, from budget-friendly systems to higher-output bass builds
Amplifier Matching Overview
W10S4 Power Rating: 250W RMS
Ideal Amp Range: Approximately 200W – 300W RMS for a single subwoofer
W10S4: Single 4Ω voice coil configuration
Single-Sub Wiring: Connect the single 4Ω voice coil directly to the amplifier
Best Setup: JL Audio JD500/1 for approximately 250W RMS at 4Ω
Best Overall Match – Clean Power for a Single W10S4
The JD500/1 is an excellent match for the W10S4 when running a single 4Ω voice coil. Its power output at 4Ω is closely matched to the subwoofer's 250W RMS rating, making it a strong choice for clean, controlled bass without needing excessive amplifier power.
High-Output Alternative – Strong 4Ω Bass Performance
The R2-500X1 is a strong alternative for enthusiasts who want additional amplifier headroom. Its output at 4Ω is above the W10S4's 250W RMS rating, so the gain should be set carefully to keep the subwoofer within its rated power range.
Why the JL Audio JD500/1 Is the Recommended Choice
Ideal Power Match: The JD500/1 provides approximately 250W RMS at 4Ω, closely matching the W10S4's 250W RMS rating
Full W10S4 Output: A properly configured single W10S4 can receive its rated amplifier power
Single Voice Coil Compatibility: The W10S4 features a single 4Ω voice coil and connects directly to a 4Ω-stable mono amplifier
Class-D Efficiency: Efficient mono amplifier design provides strong bass output in a compact package
Clean System Matching: Keeps amplifier output closely aligned with the W10S4's rated power handling
W10S4 Single Voice Coil Amplifier Matching
Voice Coil Configuration: The W10S4 features a single 4Ω voice coil
Direct Wiring: Connect the positive and negative speaker terminals directly to the mono amplifier
Final Impedance: The subwoofer presents a 4Ω final load to the amplifier
Best Match: A mono amplifier producing approximately 250W RMS at 4Ω is the preferred setup
Important: Always confirm the amplifier's RMS output at 4Ω before connecting the subwoofer
Recommended W10S4 Amplifier Settings
Gain Setting: Set the gain to achieve clean output without clipping rather than using the gain control as a volume boost
Low-Pass Filter: Start around 80Hz and adjust according to the vehicle, enclosure and front-stage response
Bass EQ: Keep bass boost moderate to maintain clean output and protect the 250W RMS 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 W10S4 System Configurations
Single W10S4: Pair one subwoofer with an amplifier producing approximately 250W RMS at 4Ω
Best Overall Build: Pair one W10S4 with the JL Audio JD500/1 for a closely matched 250W RMS setup
Higher-Output Build: The Rockford Fosgate R2-500X1 can provide additional power headroom when properly gain-matched
Important: Amplifiers with more than 250W RMS at 4Ω should be gain-matched carefully to avoid overpowering the W10S4
W10S4 Enclosure & Bass Performance
Sealed Enclosure: A sealed enclosure provides tight, controlled bass and is a great choice for daily-driver systems
Ported Enclosure: A properly designed ported enclosure can provide increased output and deeper bass extension
System Matching: Match the enclosure design and amplifier output to the vehicle and listening preferences
Pro Tip: Proper enclosure design and amplifier gain settings are just as important as amplifier power when getting the best performance from the W10S4
Pro Tip: For a single Alpine W10S4, look for an amplifier producing around 250W RMS at 4Ω. The JL Audio JD500/1 is a strong overall match, while the Rockford Fosgate R2-500X1 provides additional power headroom when properly gain-matched.
Frequently Asked Questions (FAQ)
- • What type of enclosure works best for this 10-inch subwoofer?
The subwoofer performs well in either a sealed or ported enclosure when built to the recommended specifications. Choosing the correct enclosure design helps maximize both bass quality and overall efficiency.
- • Why is there so little bass after the installation?
Incorrect amplifier gain, crossover settings, or enclosure design are common causes of weak bass output. Reviewing your amplifier adjustments and verifying the enclosure specifications usually improves performance.
- • Can I use this with my factory car stereo?
Yes, it can be integrated with many factory audio systems using the appropriate amplifier and signal interface. Proper installation ensures the subwoofer blends well with the factory speakers.
- • Why does the bass sound distorted at higher volumes?
Distortion is often caused by amplifier clipping, excessive gain settings, or an enclosure that is not properly built. Correctly tuning the amplifier and using the recommended enclosure usually eliminates the problem.
- • How much amplifier power should I use with this subwoofer?
Using an amplifier that matches the subwoofer's recommended RMS power rating provides the best balance of performance and reliability. An amplifier that is too small or improperly adjusted can actually cause more damage than a properly matched one.
- • Why does it make a popping noise when the music starts or stops?
This usually indicates a turn-on or turn-off signal issue, loose wiring, or amplifier configuration problem. Inspecting the power and signal connections often resolves the unwanted popping sound.
- • Can I install more than one of these subwoofers in the same system?
Yes, many users install multiple subwoofers to achieve greater bass output and improved low-frequency coverage. Just be sure your amplifier and electrical system can support the additional load.
- • Why does it seem to vibrate more than expected?
Loose mounting hardware, enclosure flex, or nearby vehicle panels can create excessive vibration during heavy bass passages. Tightening the mounting screws and reinforcing the enclosure usually minimizes unwanted noise.
- • Does this require a break-in period?
Yes, many users notice smoother and deeper bass after several hours of normal listening. Allowing the suspension to loosen naturally helps the subwoofer reach its optimal performance.
- • Is this a good upgrade over factory bass speakers?
Most users experience noticeably deeper bass, improved impact, and cleaner low-frequency response compared to factory audio systems. Pairing it with a properly tuned amplifier and enclosure delivers a much more enjoyable listening experience.
Learn How To Wire Subwoofers

- Diameter : 10 Inch
- Sensitivity : 86.6 dB
- Impedance : 4 Ohm
- Frequency Response : 24-200 Hz
- Peak Power Handling : 750 Watts
- Shallow Mount : No Inch
- Number of Voice Coils : Single
- Suggested Sealed Box Volume : 0.83 Cubic ft.
- Suggested Ported Box Volume : 1.33 Cubic ft.
- RMS Power Handling : 250 Watts
Features:
- 10-inch Single 4Ω Subwoofer: Optimized for clear, deep bass performance in a compact enclosure.
- Polypropylene and Mica Cone with Poly-Foam Surround: Lightweight yet rigid for accurate low-frequency response and durability.
- Power Handling: Delivers 250W RMS and 750W peak power for powerful, distortion-free output.
- Frequency Range: Wide response from 24Hz to 200Hz for full, impactful bass reproduction.
- Mounting & Enclosure Compatibility: 5-1/16" mounting depth; works best in 0.83 cu. ft sealed or 1.51 cu. ft ported boxes for flexible installation options.
Specifications:
- Size: 10-inch
- Impedance (Ohms): 4
- Cone Material: Polypropylene and Mica
- Surround Material: Poly-Foam
- Basket Material: Steel
- Grille: None included
- Free-Air: No
- Dual Voice Coil: No
- Sensitivity: 86.6 dB at 1 watt
- Frequency Response: 24 – 200 Hz
- Max RMS Power Handling: 250 watts
- Peak Power Handling (Watts): 750 watts
- Top Mount Depth (inches): 5 1/16
- Bottom Mount Depth (inches): N/A
- Cutout Diameter or Length (inches): 8 15/16
- Frame Width: 10.674
- Frame Length: 10.674
- Vas (liters): 34.7
- Fs (Hz): 32
- Qts: 0.44
- Xmax (millimeters): 10
- UPC: 793276040558
- Weight: 12
- 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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One of Alpine’s affordable Bassline series is the W10S4. This subwoofer is perfect for first time upgrades that provide 70 watts of max power. The design is optimized to give your improved bass efficiency and at the same durability.
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Doesnt take too much space compared to the 10” subs Ive set up before. Bass quality is fantastic and its a great addition to my setup. Very cheap for an Alpine sub, might as well take the chance and have that famous Alpine sound in your setup too.
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Awesome subwoofer as always from Alpine. Trying out some heavy bass tracks for a week now and it delivers with ease. Clean bass and no distortion. Great value for the price