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Alpine SWS-15D4

15" Dual 4-Ohm Type-S Car Subwoofer

  • 4.9

(8 reviews)

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  • Free Ground Shipping to the 48 statesdetails

Price Information

$229.95

–$109.96

$119.99

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Sonic Electronix had the best prices around. I could not be happier with my purchase. Shipping was super fast, will definitely shop here again.

- Albert from San Diego, CA

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General Features:

  • 15" Dual 4-Ohm Type-S Series Car Subwoofer
  • Power Handling:
    • Peak: 1000 watts
    • RMS: 500 watts
  • Impedance: Dual 4 ohms
  • Kevlar reinforced cone
  • HAMR performance surround
  • Progressive spider for reliable and consistent control
  • FEA Optimized Dual-Sided CRC Motor Structure
  • CEA-2031 compliant
  • 2.5" Voice Coil
  • 106 oz. magnet motor structure
  • Frequency response: 24-200 Hz
  • Resonance Frequency (Fs): 27 Hz
  • Top-mount depth: 7"
  • 1-year Sonic Electronix Warranty

Alpine products are warranted solely by Sonic Electronix, Inc. under the same period and terms as the original Alpine warranty. Sonic Electronix is not an Authorized Alpine Dealer and Alpine requires all merchandise purchased by Sonic Electronix customers to be returned solely to Sonic Electronix. Alpine products are also covered by our Standard Return Policy for returns on exchanges or refunds within 30 days from the date of purchase.

Subwoofer Specifications
Subwoofer Series Type-S
Subwoofer Size 15"
Peak Power Handling 1500 watts
RMS Power Handling 500 watts
Voice Coil(s) Dual
Impedance (Per Voice Coil) 4 ohms
Voice Coil Diameter 2.5"
Frequency Response 24 - 200 Hz
Xmax (millimeters) 15 mm
Subwoofer Design Round / Circle
Main Cone Color Black
Blue
Woofer Composition Kevlar Reinforced Pulp (Paper)
Woofer Surround Santoprene Rubber
Magnet Structure Double Stacked
Subwoofer Grille Optional (Accessory required and sold separately)
Re-Cone Kit Available No
Recommended Enclosure Specifications
Minimum Sealed Box Volume 1.25 cubic feet
Maximum Sealed Box Volume 2.0 cubic feet
Minimum Ported Box Volume 2.0 cubic feet
Maximum Ported Box Volume 3.0 cubic feet
Top-Mount Depth 7"
Cutout Diameter 13-5/8"
Shallow Mount Installation No
Electromechanical Parameters
Free-Air Resonance (Fs) 27 Hz
Equivalent Compliance (Vas) 107 liters
Total Speaker Q Value (Qts) .44
Electrical Q Value (Qes) .46
Electrical Resistance of Voice Coil (Re) 3.5 ohms
Mechanical Q Value (Qms) 8.57
Warranty and Return Policy
Return Policy Standard Return Policy
Parts Warranty Duration 1 year
Labor Warranty Duration 1 year
Warranty Provider Sonic Electronix
Customer Review Summary for Alpine SWS-15D4
Average Customer Rating is 4.9 out of 5 stars:
  • 4.9
based on 8 Reviews
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Rating Distribution:
5 star:
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 88%
4 star:
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 13%
3 star:
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 0%
2 star:
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 0%
1 star:
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 0%
what's this?
Average Attributes Rating:
Durability
  • 5.0
 5.0
Value
  • 4.9
 4.9
Features
  • 5.0
 5.0
Design
  • 5.0
 5.0
Usability
  • 5.0
 5.0
what's this?
Most Helpful Customer Reviews:
April 14, 2013 Amazing for the price
Review by
Kris from Frankfort, IN
Overall
  • 5.0
Durability
  • 5.0
Value
  • 5.0
Features
  • 5.0
Design
  • 5.0
Usability
  • 5.0
I purchased on of these a few months back and it slams. powering it on an Alpine MRX-M55 at 2 ohms, 550 watt rms in a ported box to 32hz. it sounds amazing and hits harder than anything I've owned before. You can't go wrong with this sub.
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March 27, 2013 Best sub ever
Review by
david from queen creek, AZ
Overall
  • 5.0
Durability
  • 5.0
Value
  • 5.0
Features
  • 5.0
Design
  • 5.0
Usability
  • 5.0
I have had the type r 15 and this one sounds waaaaaay better. Alpine is the best period. I have one running at 500 rms and I can't use any mirrors at all. My rear deck by 6x9's does the wave. It's in a 2 cu ft sealed box and loves it! Love you alpine and sonic!
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December 20, 2012 Question
Review by
Yea buddy from Kansas
Overall
  • 5.0
Durability
  • 5.0
Value
  • 5.0
Features
  • 5.0
Design
  • 5.0
Usability
  • 5.0
Does it sound good in a ported box? If so please let me know I'm wanting to buy one
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December 16, 2012 will get the cops at your house
Review by
small-mizall from memphis tn
Overall
  • 5.0
Durability
  • 5.0
Value
  • 5.0
Features
  • 5.0
Design
  • 5.0
Usability
  • 5.0
good sub had it for a week now still breaking it in ,but turned it up today and a old guy 5 houses down said hes gunna call the cops if i dont turn it off ...worth the money . ive had memphis pr 15s and 12s and pioneer tsw306dvc 12 s and the alpines are better, im running 2 on a memphis st 1000d (1100w rms ) hits hard and low
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September 26, 2012 Loud
Review by
Austin from Grayling
Overall
  • 5.0
Durability
  • 5.0
Value
  • 5.0
Features
  • 5.0
Design
  • 5.0
Usability
  • 5.0
These subs are incredible i have them in a custom 5 cubic ft box tune to 35 hz an these things slam. A great buy for someone who wants some serious bass.
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View All 8 Reviews for Alpine SWS-15D4
Empty Enclosures
Every subwoofer needs an enclosure to mount in and these high quality boxes are perfect for your new woofer! After a quick installation, you'll be ready for some real bass in your car!
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Ported Subwoofer Enclosure Ported Subwoofer Enclosure
Single 15" ported/vented enclosure carpeted black and made with solid 3/4" MDF. 		$79.95
Speaker Wire
Choose from our recommended speaker wire to hook up your amplifier to your new subwoofer. The higher quality of speaker wire that it used for this connection, the better your subwoofer will sound.
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15 ft. of 12 AWG StreetWires Speaker Wire 15 ft. of 12 AWG StreetWires Speaker Wire
This SuperCable from StreetWires is a noise free link between your amplifier and your subwoofer. 		$24.99
20 ft. of 12 AWG Kicker Speaker Wire 20 ft. of 12 AWG Kicker Speaker Wire
Kicker uses twisted pair technology and hyper-flex cable to provide you with the cleanest sound and a simple installation. 		$39.95
Sound Dampening Material
Get the most sound out of your new subwoofer with some high quality sound dampening material. It will keep the road noise out and the music inside the car.
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Dynamat Rubber Roller Dynamat Rubber Roller
Install your Dynamat with ease! This heavy duty rubber roller is designed specifically to install your Dynamat! 		$18.99
Dynamat Extreme Bulk Pack Dynamat Extreme Bulk Pack
36 ft. Dynamat Xtreme Bulk Pack enhances the sound for your entire car! 		$159.99
Enclosure Accessories
These accessories are designed to help you build the custom enclosure that you have always wanted, or add to the box that you already bought. Either way, these products can assist you in achieving better sound, better looks, and more bass!
  Product Price Add?
20 oz. Bag of Poly-Fil 20 oz. Bag of Poly-Fil
Polyester fiber fiberfill adds better bass to your system. 		$5.99
16 oz. Can of Adhesive Spray 16 oz. Can of Adhesive Spray
Spray adhesive used for adhering carpet to subwoofer boxes without bubbles. 		$5.99
Binding Post Terminal Cup Binding Post Terminal Cup
Use this to easily install a binding post terminal to your subwoofer enclosure. 		$4.99
Banana Clip Terminals Banana Clip Terminals
These high grade banana clips allow you to plug into your banana clip ready terminal for a secure connection. 		$4.99
Installation, Tools & Accessories
Don't forget to get the tools and accessories that will help you install your new subwoofer in your vehicle. Whether you opt for the professional installation card or the do-it-yourself method, you will need the following to help you out!
  Product Price Add?
Car Stereo and Speaker / Subwoofer Installation Tool Kit Car Stereo and Speaker / Subwoofer Installation Tool Kit
Includes Test Light, Crimp/Splice Tool, Multi-bit Screwdriver and more. 		$14.99
System Optimization and Tuning
Use these items to assist in testing and tuning your new car audio system to perfection!
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Scosche SPL Meter Scosche SPL Meter
Monitor the noise level of your new car audio system with this SPL meter measuring from 60-135 dB. 		$24.99
AutoSound 2000 CD-101 AutoSound 2000 CD-101
Low frequency test CD 		$12.99
AutoSound 2000 CD-102 AutoSound 2000 CD-102
High frequency test CD specifically designed for the set-up and evaluation of sound system imaging and placement. 		$12.99
AutoSound 2000 CD-103 AutoSound 2000 CD-103
Audiophile reference series test disc for evaluation of all audio components. 		$12.99
Main Product
  Product Price Add?
Alpine SWS-15D4 Alpine SWS-15D4 $119.99

For more information on wiring subwoofers, visit our Subwoofer Wiring Guide: Subwoofer Wiring Guide

Product Summary

Manufacturer: Alpine
Model number: SWS-15D4
UPC: 793276011824
Weight: 24.50 lbs
Internal SKU: sws15d4
Internal product ID: 45527