Garage
Shop

See all parts that fit your 2015 Escalade ESV

(2) Alpine W12S4 12" Bass Subwoofers

(2) 750W Max (250W RMS) 12" BassLine Series Single 4 ohm Car Subwoofer

Alpine
Shop all Alpine
highlight-star-icon

• 750W Max
• 250W RMS
• Polypropylene-Mica cone
• High-excursion poly-foam surround
• High-strength custom steel frame
• Progressive Wavelit Ribs (P.W.R.) cone design

Learn more about the w12s4_x2

We apologize

This item has been discontinued


Loading...
SB-GM-4GSUVCNSL/10TW1 main

JL Audio Stealthbox® SB-GM-4GSUVCNSL/10TW1

Custom fit subwoofer enclosure for select 2015-2021 vehicles from Chevrolet, Cadillac, GMC with Front Bucket Seats and Factory Console

2

$1,249.99

Limited time!
46CSC654 main

Kicker CSC65 (46CSC654)

600W Peak (200W RMS) 6.5” CS Series 2 Way Coaxial 4-ohm Speakers

123
-33.36%

$79.96

List price $119.99

Limited time!
46CSC6934 main

Kicker CSC693 (46CSC6934)

900W Peak (300W RMS) 6x9” CS Series 3 Way Coaxial 4-ohm Speakers with Integrated Midrange Speakers

40
-30.02%

$111.96

List price $159.99

Description


Alpine brand icon

Authorized dealer

Legendary Alpine quality at an affordable price

Car audio enthusiasts know that Alpine is the leader in technology and innovation. Their reputation for developing the most reliable products is legendary. The BassLine product line is a their quest to give customers a quality product that won't break the bank.

Surround and wattage match made in heaven

The 250 watts of continuous power that the W12S4 handles complements the poly-foam surround that Alpine went with. It provides the best sound quality money can buy at this price point.

General Features:

  • 12" Single 4 ohm BassLine (Bass) Series Subwoofer
  • Power Handling:
    • Peak: 750 watts
    • RMS: 250 watts
  • Recommended power range: 50W - 250W RMS
  • Polypropylene-Mica cone
  • High-excursion poly-foam surround
  • Progressive Wavelit Ribs (P.W.R.) cone design
  • Optional Alpine KTE-12PG subwoofer grill is available and is a wonderful complement to the trim ring with Alpine logo
  • High-strength custom steel frame
  • 8AWG push terminals
  • 2" voice coil
  • 52oz. magnet
  • Top-mount depth: 5-5/16"
  • Cutout diameter: 10-5/8"
  • Frequency Response: 22 - 200Hz
  • Sensitivity: 87.9dB
  • Resonance Frequency (Fs): 30
  • Authorized Internet Dealer
  • 1-year Manufacturer's Warranty
  • Priced Individually

Subwoofer Wiring Guide


Wiring Guide to Wire 1 (2) Alpine W12S4 12" Bass Subwoofers Subwoofer

Mono Amp

2 Channel Amp - Bridged

Wiring Guide to Wire 2 (2) Alpine W12S4 12" Bass Subwoofers Subwoofers

Mono Amp

2 Channel Amp

4 Channel Amp - Bridged

Wiring Guide to Wire 3 (2) Alpine W12S4 12" Bass Subwoofers Subwoofers

4 Channel Amp

Wiring Guide to Wire 4 (2) Alpine W12S4 12" Bass Subwoofers Subwoofers

Mono Amp

Mono Amp - Option 1

2 Channel Amp

2 Channel Amp - Bridged

4 Channel Amp


Loading...
SB-GM-4GSUVCNSL/10TW1 main

JL Audio Stealthbox® SB-GM-4GSUVCNSL/10TW1

Custom fit subwoofer enclosure for select 2015-2021 vehicles from Chevrolet, Cadillac, GMC with Front Bucket Seats and Factory Console

2

$1,249.99

Limited time!
46CSC654 main

Kicker CSC65 (46CSC654)

600W Peak (200W RMS) 6.5” CS Series 2 Way Coaxial 4-ohm Speakers

123
-33.36%

$79.96

List price $119.99

Limited time!
46CSC6934 main

Kicker CSC693 (46CSC6934)

900W Peak (300W RMS) 6x9” CS Series 3 Way Coaxial 4-ohm Speakers with Integrated Midrange Speakers

40
-30.02%

$111.96

List price $159.99

Club 322F main

JBL Club 322F (SPKCB322FAM)

150W Peak (50W RMS) 3.5" Club Series 2 Way Coaxial 3-ohm Speakers

1
-27.29%

$79.95

List price $109.95

Limited time!
Club 622 main

JBL Club 622

360W Peak (120W RMS) 6.5" Club Series 2-way Coaxial 3-ohm Speakers

5
-28.58%

$99.95

List price $139.95

43DSC6504 main

Kicker DSC650 (43DSC6504)

480W Peak (120W RMS) 6.5” DS Series 2-way 4-ohm Coaxial Car Speakers (DSC6504)

28
-10.53%

$84.99

List price $94.99

SXE-6926S main

Alpine SXE-6926S

280W Peak (90W RMS) 6x9” SXE Series 2-way 4-ohm Coaxial Speakers

13
-20.84%

$56.99

List price $71.99

DB652 main

Polk Audio DB652 (DB 652)

600W Peak (200W RMS) 6.5" DB+ Series 2 Way Coaxial 4-ohm Car, Marine and Powersports Speakers

12
-9.16%

$109.00

List price $119.99

MPK 163.3 main

Hertz MPK163.3

600W Peak (300W RMS) 6.5" Mille PRO Series 3-way 4-ohm Component Speaker System

2
-14.89%

$999.99

List price $1175.00

PNW-65CS2 main

AudioControl PNW-65CS2

250W Peak (200W RMS) 6.5″ PNW Series 2 Way Component 3-ohm Speakers

4
-5.90%

$319.00

List price $339.00


Best selling similar products

Marine Club 12 small

JBL CB122 Club Marine 12

• Peak Power: 1200 watts
• RMS Power: 400 watts
• Polypropylene Cone
• Rubber Surround
• Impedance: Single 4 ohm
• Mount depth: 7-13/16"
• Sensitivity: 89 dB

(1)

$119.95

List price $379.95

VCW124v3 small

NVX VCW124 Version 3 (VCW124v3)

• Peak Power: 2400 watts
• RMS Power: 1200 watts
• Impedance: Dual 4 ohm
• Carbon Fiber Enhanced Non-Pressed Paper Cone
• Custom High Roll Foam Surround with black nylon stitching
• Mount depth: 7.02"
• Sensitivity: 85 dB (1W/1m)

(132)

$239.99

List price $287.99

SQW124 small

NVX SQW124

• Peak Power: 1200 watts
• RMS Power: 600 watts
• Impedance: Dual 4 ohm
• Polypropylene Cone
• Rubber Surround
• Mount depth: 3.51"
• Sensitivity: 84 dB

$299.99

List price $359.99

12W6v3-D4 small

JL Audio 12W6v3-D4

• RMS Power: 600 watts
• Impedance: Dual 4 ohm
• Mineral-Filled Polypropylene Cone
• Butyl Rubber Surround
• Mount depth: 7.52"
• Sensitivity: 85.4 dB

(25)

$949.99

List price $949.99

VCW122v3 small

NVX VCW122 Version 3 (VCW122v3)

• Peak Power: 2400 watts
• RMS Power: 1200 watts
• Impedance: Dual 2 ohm
• Carbon Fiber Enhanced Non-Pressed Paper Cone
• Custom High Roll Foam Surround with black nylon stitching
• Mount depth: 7.02"
• Sensitivity: 85 dB (1W/1m)

(94)

$239.99

List price $287.99

SRX1240 small

Memphis SRX1240

• Peak Power: 500 watts
• RMS Power: 250 watts
• Impedance: Single 4 ohm
• Polypropylene Cone
• Rubber Surround
• Mount depth: 4.92"
• Sensitivity: 85 dB

$79.99

List price $139.95

SW-M12D2 small

Sundown Audio M-12 D2 12" (M12D2)

• Peak Power: 4000 watts
• RMS Power: 2000 watts
• Impedance: Dual 2 ohm
• Polypropylene Cone
• High Roll Foam Surround
• Mount depth: 10.88"
• Sensitivity: 80.6 dB

(2)

$599.99

List price $719.99

12TW3-D4 small

JL Audio 12TW3-D4

• RMS Power: 400 watts
• Impedance: Dual 4 ohm
• Mica Injected Polypropylene - MIPP Cone
• Rubber Surround
• Mount depth: 3.5"
• Sensitivity: 84.11 dB

(20)

$569.99

List price $569.99

Stage 122 small

JBL Stage 122 (JBLSUBST122AM)

• Peak Power: 1000 watts
• RMS Power: 250 watts
• Impedance: Single 4 ohm
• Polypropylene Cone
• Rubber Surround
• Mount depth: 6"
• Sensitivity: 91 dB

$109.95

List price $129.95

12W3v3-4 small

JL Audio 12W3v3-4

• RMS Power: 500 watts
• Impedance: Single 4 ohm
• Mineral-Filled Polypropylene Cone
• Nitrile Butadiene Rubber NBR Surround
• Mount depth: 6.65"
• Sensitivity: 87.15 dB

(65)

$469.99

List price $469.99

Specifications & Details


Subwoofer Specifications
Series
BassLine Series
Subwoofer Size
12"
Peak Power Handling
750 watts
RMS Power Handling
250 watts
Voice Coil(s)
Single
Impedance (Per Voice Coil)
4 ohm
Voice Coil Diameter
2"
Frequency Response
22 - 200 Hz
Sensitivity
87.9 dB
Xmax (millimeters)
10 mm
Subwoofer Design
Round / Circle
Main Cone Color
Black
Woofer Composition
Mica Injected Polypropylene - MIPP
Woofer Surround
Poly-Foam
Subwoofer Grille
Optional (Accessory required and sold separately)
Recommended Enclosure Specifications
Recommended Enclosure Type
Ported / Vented
Sealed
Optimum Sealed Box Volume
1.09 cubic feet
Optimum Ported Box Volume
1.91 cubic feet
Top-Mount Depth (Mounting Depth)
5-5/16"
Cutout Diameter
10-5/8"
Shallow Mount Installation
No
T/S Parameters (Electromechanical)
Free-Air Resonance (Fs)
30 Hz
Equivalent Compliance (Vas)
64.3 liters
Total Speaker Q Value (Qts)
.49
Electrical Q Value (Qes)
.53
Electrical Resistance of Voice Coil (Re)
3.7 ohm
Mechanical Q Value (Qms)
7.66
What is in the box?
Paperwork
User manual
Warranty/Registration card
WITB: Subwoofers
Subwoofer
Warranty and Return Policy
Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Manufacturer

Item Details


Manufacturer:

Model Number:

W12S4,W12S4

Weight:

22.00lbs

Internal SKU:

w12s4_x2

Internal Product ID:

145071

Customer Ratings & Reviews


(2) Alpine W12S4 12

5 star
50%
4 star
50%
3 star
0%
2 star
0%
1 star
0%



Durability
5
Value
5
Features
5
Design
5
Usability
5

Customer Reviews

Sort by:

Loading...

Good price .Excellent qaulity

These speakers arrived fast and they sound good. I'm very satisfied with the qaulity. They don't come with screws though. I don't know if thats normal or not but you need 8 per speaker

By nicholas on December 25, 2019 Checkmark Icon Verified purchase

2 found this helpful


How to tune perfectly so they. Bump hard

They are nice

By Foe on April 17, 2020

2 found this helpful




No picture

JL Audio SGRU-6 - New (Damaged Packaging, Product A+)

Mesh Grille for JL Audio 6.5" W3v3 Subwoofers

(5)

$29.70

List price $29.99

No picture

JL Audio SGRU-13 - New (Damaged Packaging, Product A+)

Mesh Grille for JL Audio 13" W3v3 and TW5v2 Subwoofers

(6)

$55.24

List price $64.99

No picture

JL Audio M6-650SGI-S-Ti - New (Damaged Packaging, Product A+)

6.5-inch (165mm) Sport Grille Insert

(2)

$25.19

List price $27.49

KDC-X595 small

Kenwood KDC-X595

In-Dash Single DIN CD Receiver w/ 3-Line LCD Display, iTunes Tagging, Front USB/AUX and Remote

(4)

$144.99

List price $200.00

1.302300 small

Skross 1.302300 (1.302300) World USB Charger

World USB Travel Charger w/ 2 USB Charging Ports

$33.95

List price $39.95

No picture

Kenwood KFC-W112S (Open Box, Complete)

200W 12" Performance Series Single 8 ohm Subwoofer

$35.99

List price $99.99

Related Searches


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

2015 Cadillac Escalade ESV

2004 Saturn L300

1973 Cadillac Calais

1972 GMC K2500 Pickup

1991 Ford Ranger

2006 Honda Pilot

2000 Isuzu Trooper

1980 GMC C2500 Pickup

2015 BMW 760Li

1985 Isuzu Impulse

Vehicle
Store
Delete

2007 Harley Davidson FLTR Road Glide

Vehicle
Store
Delete

2021 Can-Am Defender MAX HD8

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.