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Earthquake SWS-8XI

8" Single 2 ohm Shallow Woofer System Series Car Subwoofer

4.0

(3 reviews)

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The Extremely Versatile SWS Subwoofers

The SWS-8XI by Earthquake Sound features a mounting depth of 2-1/8". With a depth this small the applications for this woofer are endless. This shallow-woofer-system series subwoofer is perfect for those with limited space but that still want some bass in their car. This woofer is also the perfect replacement for factory upgraded systems, especially BMW vehicles. The woofer features a light weight resistant PVC cone and a long-lasting UV treated high-roll composite foam surround for added rigidity, stiffness, longevity and increase power output and performance. Don't let the size of the woofer fool you into thinking it's not powerful, with an Xmax linear excursion of 23mm this woofer will hit low-frequencies with accuracy and precision for a clean, crisp, and responsive bass reproduction. Although often imitated the SWS's 3 protected U.S patents assure that it's never duplicated. If you have 2.5" of space to spare then there is no other option than the SWS series subwoofer.

Subwoofer Features:

  • 8" Shallow Mount 2 Ohm Subwoofer
  • Power Handling:
    • Peak: 300 watts
    • RMS: 150 watts
  • Impedance: Single 2 Ohm
  • Long lasting, UV treated high-roll composite foam surround
  • Fits the factory BMW bolt pattern
  • Perfect replacement for factory upgraded systems
  • Easy 8" door-mount
  • Easy under-seat mount
  • First in-dash mount
  • Excellent for rear-deck mounting
  • 1.5" Voice coil
  • Aluminum bobbin
  • Mounting depth: 2-1/8"
  • Xmax: 23.00 mm
  • Sensitivity: 86.7 dB
  • Authorized Internet Dealer
  • 5-year Manufacturer's warranty
Note: The 2-Ohm SWS-8XI is for factory upgraded vehicles only.
Subwoofer Specifications
Subwoofer SeriesSWS
Subwoofer Size8"
Peak Power Handling300 watts
RMS Power Handling150 watts
Voice Coil(s)Single
Impedance (Per Voice Coil)2 ohms
Voice Coil Diameter1.5"
Frequency ResponseN/A
Sensitivity86.7 dB
Xmax (millimeters)23 mm
Subwoofer DesignRound / Circle
Main Cone ColorBlack
Woofer CompositionN/A
Woofer SurroundUV Treated Foam
Magnet StructureN/A
Subwoofer GrilleNo
Re-Cone Kit AvailableNo
Recommended Enclosure Specifications
Recommended Enclosure TypeSealed
Minimum Sealed Box Volume0.19 cubic feet
Maximum Sealed Box Volume0.60 cubic feet
Minimum Ported Box VolumeN/A
Maximum Ported Box VolumeN/A
Top-Mount Depth2-1/8"
Cutout Diameter7-7/8"
Shallow Mount InstallationYes
Electromechanical Parameters
Free-Air Resonance (FS)30.394 Hz
Electrical Resistance of Voice Coil (Re)3.500 ohms
Electrical Q Value (Qes)0.804
Mechanical Q Value (Qms)3.987
Total Speaker Q Value (Qts)0.669
Equivalent Compliance (Vas)27.830 liters
Warranty and Return Policy
Return Policy Standard Return Policy
Parts Warranty Duration5 years
Labor Warranty Duration5 years
Warranty ProviderManufacturer
Customer Review Summary for Earthquake SWS-8XI
Average Customer Rating is 4.0 out of 5 stars:
4.0
based on 3 Reviews
Share your thoughts with others:
Rating Distribution:
5 star:
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.
33%
4 star:
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.
33%
3 star:
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33%
2 star:
.
0%
1 star:
.
0%
what's this?
Average Attributes Rating:
Durability
3.7
Value
3.7
Features
4.0
Design
4.3
Usability
4.3
what's this?
Quick Comparison:
Most Helpful Customer Reviews:
April 7, 2011 Good service but not so good product
Review by
lask from Guatemala, Guatemala
Overall
Durability
Value
Features
Design
Usability
I live out of the USA so I was not able to return the product, but one of the subwoofers had a damaged wire that we repaired locally.
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September 13, 2010 Good value
Review by
Mr PPN from London, Great Britain
Overall
Durability
Value
Features
Design
Usability
I bought these speakers for my BMW E92. They are a direct replacement for the factory fitted ones and they work very well. Great speaker.
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March 30, 2010 Awesome product!
0 of 1 people found the following review helpful:
Review by
Steven from Escondido Ca
Overall
Durability
Value
Features
Design
Usability
Great set of subs to fit in your OEM BMW housing. And the 2ohms are great to give it extra boost in case your amp isn't the greatest. Just be sure to get some sort of spacer to make it fit perfectly without any problems.
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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!
 ProductPriceAdd?
Sealed Subwoofer EnclosureSealed Subwoofer Enclosure
Dual 8" Angled Universal Truck MDF Enclosure
$24.99
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.
 ProductPriceAdd?
15 ft. of 12 AWG StreetWires Speaker Wire15 ft. of 12 AWG StreetWires Speaker Wire
This SuperCable from StreetWires is a noise free link between your amplifier and your subwoofer.
$19.99
20 ft. of 12 AWG Kicker Speaker Wire20 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.
$24.49
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.
 ProductPriceAdd?
Dynamat Rubber RollerDynamat Rubber Roller
Install your Dynamat with ease! This heavy duty rubber roller is designed specifically to install your Dynamat!
$18.99
Dynamat Xtreme Trunk KitDynamat Xtreme Trunk Kit
Get better sounding bass from your new subwoofer with enough Dynamat Extreme for your entire trunk.
$94.99
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!
 ProductPriceAdd?
20 oz. Bag of Poly-Fil20 oz. Bag of Poly-Fil
Polyester fiber fiberfill adds better bass to your system.
$5.99
16 oz. Can of Adhesive Spray16 oz. Can of Adhesive Spray
Spray adhesive used for adhering carpet to subwoofer boxes without bubbles.
$5.99
Spring Post Terminal CupSpring Post Terminal Cup
Makes adding a spring post terminal to an enclosure simple! Banana clip ready!
$2.99
Binding Post Terminal CupBinding Post Terminal Cup
Use this to easily install a binding post terminal to your subwoofer enclosure.
$2.99
Banana Clip TerminalsBanana Clip Terminals
These high grade banana clips allow you to plug into your banana clip ready terminal for a secure connection.
$4.99
System Optimization and Tuning
Use these items to assist in testing and tuning your new car audio system to perfection!
 ProductPriceAdd?
AutoSound 2000 CD-101AutoSound 2000 CD-101
Low frequency test CD
$12.99
AutoSound 2000 CD-102AutoSound 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-103AutoSound 2000 CD-103
Audiophile reference series test disc for evaluation of all audio components.
$12.99
Main Product
 ProductPriceAdd?
Earthquake Sound SWS-8XIEarthquake SWS-8XI$169.95
Related products
Earthquake SWS-8X
Black 8" Shallow Mount Subwoofer • 4 Ohm • 300 Watts Peak • 150 Watts RMS • UV Treated High-Roll Composite Foam Surround • Easy Slim Mounting • Perfect Replacement for Factory Upgraded Systems

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

Product Summary

Manufacturer: Earthquake Sound
Model number: SWS-8XI
UPC: 168975910165
Weight: 4.50 lbs
Internal SKU: sws8xi
Internal product ID: 18036

Price Information

$189.99

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$169.95

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Customer Testimonial

Fantastic customer service from everyone I came in contact with. Harrison, Jeffrey and Leann were all great whether it be e-mail or phone. Quick efficient knowledgeable staff. Price guarantee match was simple to use and immediate response. Not to mention great prices and same day shipping.

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