Garage
Shop

See all parts that fit your 2008 Avalanche

Alpine S2-W8D4 (Open Box, Great)

900W Peak (300W RMS) 8" S-Series Dual 4-ohms Car Subwoofer

Alpine
Shop all Alpine
Only 1 Left!
highlight-star-icon

• Peak Power: 900 watts
• RMS Power: 300 watts
• Impedance: Dual 4 ohm
• Polypropylene Cone
• High-Amplitude Multi-Roll (HAMR) Surround
• Mount depth: 3.71"
• Sensitivity: 82.7 dB

Learn more about the ls-s2w8d4-u8
Universal fit Icon

Universal – fits most vehicles.

Similar items | Update vehicle | Vehicle store
List price $260.00
Thanks , You Pay:
-43%

$146.96

 with warranty
Starting at $14/mo or 4 payments of $37 Buy now, pay later and installment payment plans are offered by Afterpay and Affirm. Learn more

Heads up

Your vehicle can use this product in multiple locations. Only a quantity of one can be selected from the product page. You will have the option to adjust the quantity within your cart.

shipping truck icon Free shipping in USA. Provide zip for delivery date.
Quantity
In Stock. Only 1 Left!
Open Box, Great

Buy it now

Open box icon Brand new $167.95

Acima Logo

No Credit Option

Flexible Lease Payments

Early Purchase Options

Quick Approval Decision

Swoosh Icon Icon of Swoosh

For over 25 years, we've been your X-Factor – the team dedicated to having the biggest impact on your shopping experience!

Award winning icon
Award-Winning Service
Shipping icon
FREE Shipping Orders $49+
60 days return policy icon
60-Day Easy Returns
lowest price guarantee icon
Guaranteed Lowest Price
inHouseExpert
In-House Experts

Description


Alpine brand icon

Authorized dealer

Item Condition - Open Box, Great:

This product works like new, is well-cared-for and in great condition. May show limited signs of wear or use and may be missing non-essential parts, accessories or original packaging.


S2-W8D4

With a power handling of 300W RMS and a peak power handling of 900W, the Next-Gen 8” S-Series Subwoofers deliver outstanding performance value. Boasting a wide frequency response range of 23Hz to 215Hz and a sensitivity of 83dB (1W/1m), these subs ensure powerful and accurate bass reproduction across a diverse range of music genres. Featuring the lightweight yet sturdy combination of carbon fiber and polypropylene, the Next-Gen S-Series Subwoofer cone delivers deep, low-distortion bass that enhances the depth and richness of your music.


Product Details:

  • 8" Dual 4 ohm S Series Subwoofer
  • Power Handling:
    • Peak: 900 watts
    • RMS: 300 watts
  • Polypropylene Cone
  • High-Amplitude Multi-Roll (HAMR) Surround
  • Redesigned for powerful and reliable bass
  • Twist-Lock Grille Mount System
  • Push-Type Speaker Terminals (Up to 8AWG Wire Size)
  • 1.4" High Temperature Copper Voice coil
  • 13 mm Xmax
  • 34 oz. Double Stacked Ferrite magnet motor structure
  • Frequency Response: 23 - 215 Hz
  • Resonance Frequency (Fs): 47.9 Hz
  • Sensitivity: 82.7 dB
  • Recommended sealed box volume: 0.15 cubic feet - 0.50 cubic feet
  • Recommended ported box volume: 0.71 cubic feet
  • Top-mount depth: 3.71"
  • Cutout diameter: 6.85"
  • Authorized Internet Dealer
  • 1-year Manufacturer's Warranty

  • Priced Individually

PDF IconAlpine S2W8D4 owner’s manual

Product history:

Alpine LS-s2w8d4-u8 thumbnail
(newest, current model)
Alpine S-W8D4 thumbnail
(previous model, replaced by Alpine S2-W8D4 (Open Box, Great))

Subwoofer Wiring Guide


Wiring Guide to Wire 1 Alpine S2-W8D4 (Open Box, Great) Subwoofer

Mono Amp

2 Channel Amp - Bridged

Wiring Guide to Wire 2 Alpine S2-W8D4 (Open Box, Great) Subwoofers

Mono Amp

Mono Amp - Option 1

2 Channel Amp

2 Channel Amp - Bridged

4 Channel Amp - Bridged

Wiring Guide to Wire 3 Alpine S2-W8D4 (Open Box, Great) Subwoofers

Mono Amp

4 Channel Amp

Wiring Guide to Wire 4 Alpine S2-W8D4 (Open Box, Great) Subwoofers

Mono Amp

2 Channel Amp

2 Channel Amp - Bridged

4 Channel Amp

Specifications & Details


Subwoofer Specifications
Series
S Series
Subwoofer Size
8"
Peak Power Handling
900 watts
RMS Power Handling
300 watts
Voice Coil(s)
Dual
Impedance (Per Voice Coil)
4 ohm
Voice Coil Material
Copper
Voice Coil Diameter
1.4"
Frequency Response
23 - 215 Hz
Sensitivity
82.7 dB
Xmax (millimeters)
13 mm
Subwoofer Design
Round / Circle
Main Cone Color
Black
Dark Gray
Woofer Composition
Polypropylene
Woofer Surround
High-Amplitude Multi-Roll (HAMR)
Magnet Structure
Double Stacked
Magnet weight
34 oz.
Magnet Type
Ferrite
Recommended Enclosure Specifications
Recommended Enclosure Type
Ported / Vented
Sealed
Minimum Sealed Box Volume
0.15 cubic feet
Maximum Sealed Box Volume
0.50 cubic feet
Optimum Ported Box Volume
0.71 cubic feet
Top-Mount Depth (Mounting Depth)
3.71"
Cutout Diameter
6.85"
Shallow Mount Installation
No
T/S Parameters (Electromechanical)
Free-Air Resonance (Fs)
47.9 Hz
Equivalent Compliance (Vas)
7.5 liters
Total Speaker Q Value (Qts)
0.64
Electrical Q Value (Qes)
0.74
Electrical Resistance of Voice Coil (Re)
3.6 ohm
Mechanical Q Value (Qms)
5.9
What is in the box?
Paperwork
User manual
Warranty/Registration card
WITB: Subwoofers
Subwoofer
Mounting screws (4)
Warranty and Return Policy
Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Manufacturer

Item Details


Manufacturer:

Model Number:

LS-s2w8d4-u8

Weight:

8.00lbs

Internal SKU:

ls-s2w8d4-u8

Internal Product ID:

228033

Customer Ratings & Reviews


Alpine S2-W8D4 (Open Box, Great) thumbnail image

5 star
0%
4 star
0%
3 star
0%
2 star
0%
1 star
0%



Durability
0
Value
0
Features
0
Design
0
Usability
0

Customer Reviews

Sort by:

Loading...
Sorry, no reviews found


KFC-W2513PS_C3 102 small

1000W Kenwood Subwoofer + Crossfire Complete Bass Bundle

Kenwood KFC-W2513PS 10" Performance Series Subs + Crossfire C3 102 2-Chan. Amp + Kit + Enclosure

(1)

$235.84

List price $449.93

No picture

NVX VUBT2v2 (VUBT2 Version 2) (Like New (Open Box))

Universal Waterproof Bluetooth Audio Receiver for Cars, Vehicles, Motorcycles/ATVs & Marine/Boat Use (V-Series)

$33.99

List price $49.99

No picture

JBL Stage3 627F (STAGE3627FAM) (Like New (Open Box))

270W Peak (90W RMS) 6.5" Stage3 Series 2-way Coaxial 3-ohm Speakers

$67.96

List price $99.95

No picture

NVX QB10SPA (Open Box, Good)

1200W MAX (350W RMS) Single 10" Amplified Ported Loaded Subwoofer Enclosure with Remote Bass Knob

$159.99

List price $275.98

Related Searches


Save up to 10 different vehicles in your garage
Vehicle
Store
Delete

2010 Dodge Ram 1500

1974 Ford Courier

2008 Chevrolet Avalanche

2010 Kia Optima

2005 BMW 325Ci

2019 Volvo V60

1969 Buick Riviera

2001 Nissan Altima

1992 Ford Aerostar

2019 Audi A4 allroad

Vehicle
Store
Delete

2001 Harley Davidson FXSTS/I Springer Softail

Add vehicle Clear all vehicles
Where to find vehicle info
Are you sure you want to clear your garage?
This action cannot be undone. Confirm
This page was not designed for products.
If you continue, you will be redirected to a category customized for your vehicle. Continue
Loading...
Identify your vehicle and submodel details
  • Owner's manual
  • Vehicle's insurance card
  • Vehicle registration
  • Vehicle produced after 2005: Inside driver's side door
  • Vehicle produced before 2005: Rear passenger doorjamb, glove box, center console, or engine compartment
Car Info Side Door Icon
Vehicle Registration Icon
Vehicle Insurance Icon

Modern vehicles often require specific brackets, wiring harnesses, and mounting solutions. A fit guide ensures:

  • You see only parts engineered for your exact vehicle
  • You avoid incompatible radios, speakers, or wiring
  • Installation is smoother, faster, and frustration-free
  • You get the correct accessories the first time

Whether you're replacing a factory stereo or upgrading your entire audio system, the Fit Finder eliminates uncertainty.