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Earthquake Sound DBXI-12D

12" Dual 4 Ohm DBXi Series Car Subwoofer

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Earthquake Sound DBXI-12D

12" Dual 4 Ohm DBXi Series Car Subwoofer

$189.99

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Single 12" Ported Enclosure Custom Black Baffle

Gold Binding post terminals and a high quality 5/8" MDF construction.

$59.99

Add
25 ft. of Streetwires 12 Gauge Speaker Cable

You'll need speaker wire to hook up that new subwoofer!

$37.85

Add
20 Square Feet of Sound Dampening Material

NVX Sound dampening is thicker than competitors, eliminates rattles and gives you bigger bass!

$53.99

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Bundles with this Product

Add a Vented Enclosure with Your Subwoofer Purchase!

Maximize Your Bass when you add a Belva 1SV12B Vented Subwoofer Enclosure to your Subwoofer purchase. Simply click the "Add Both to Cart" button.

0.00

38107

2693

Earthquake Sound DBXI-12D

$189.99

+

Single 12" Vented MDF Subwoofer Enclosure (Belva 1SV12B)

$54.99

Special Price $54.99 ($54.99 if purchased separately)

Single 12" Vented MDF Subwoofer Enclosure (Belva 1SV12B)

• Single 12" Vented MDF Enclosure
• Holds one 12" subwoofer
• 3/4 MDF (Medium Density Fiberboard) Construction
• Durable black carpeting
• Gold Terminals
• Internal Box Volume: 1.8 cubic ft.

Add a Sealed Enclosure to Your Subwoofer Purchase!

Add a Belva MDFS12 Sealed Subwoofer Enclosure to your Subwoofer purchase. Simply click the "Add Both to Cart" button.

0.00

38107

2685

Earthquake Sound DBXI-12D

$189.99

+

Single 12" Sealed MDF Subwoofer Enclosure (Belva MDFS12)

$34.99

Special Price $34.99 ($34.99 if purchased separately)

Single 12" Sealed MDF Subwoofer Enclosure (Belva MDFS12)

• 3/4" Medium Density Fiberboard Construction
• Durable Black Carpeting
• Pre-Lined with Poly-Fil
• Gold Speaker Terminals

(Offer 1 of 2)

Combined Total Price

$244.98

Earthquake Sound Store

Check out this video to see the DBXI-12D Subwoofer's excursion!

Go off the Richter Scale with DBXi Subwoofers

The DBXI-12D Dual 4 ohm 12" subwoofer is the perfect example of what it means to carry the Earthquake Sound name. Earthquake Sound subwoofers need to not only be loud but also sound great and perform without any problems. With an RMS of 500 watts this woofer will produce enough bass to really satisfy those low-frequency reproduction needs. The woofer features a pressed pulp fiber woofer cone and high-roll rubber surround for added stiffness, rigidity, and higher excursion capabilities. Its turbo propped cooling reduces thermal heat and thus increases output and lowering distortion during all periods of play. The woofer also features a 2" voice coil and double stacked magnet structure able to produce an impressive 3.5" of linear excursion, giving you deep impact bass. The DBXi woofer is your everyday driver that will perform day in and day out without compromising quality.

General Features:

  • 12" Dual 4 ohm DBXi Series Subwoofer
  • Power Handling:
    • Peak: 1500 watts
    • RMS: 500 watts
  • Impedance: Dual 4 ohm
  • Pressed pulp fiber woofer cone material
  • High-roll rubber woofer surround
  • New and improved design
  • Stitched tensile leads
  • Deep impact bass
  • Turbo propped cooling
  • Die-cast aluminum basket
  • 2" Aluminum bobbin voice coil
  • 140 oz. Double stacked magnet structure
  • Sealed, ported, or bandpass compatible
  • Sensitivity: 87 dB
  • Xmax: 88.9 mm
  • Mounting Depth: 6-3/4"
  • Cutout dimensions: 11-7/8"
  • Authorized Internet Dealer
  • 5-year Manufacturer's warranty

Subwoofer Specifications

Subwoofer Series
Each subwoofer manufactured is part of a series. This is the name of the subwoofer's series.
DBXI (Earthquake)
Subwoofer Size
Refers to the diameter of the subwoofer, measured in inches.
12"
Peak Power Handling
Peak power handling refers to the amount of power a speaker can handle during a brief musical burst. The RMS power range figure is a much more reliable rating for determining the speaker's power requirements. The Peak power handling specification is typically rated per speaker unless otherwise noted.
1500 watts
RMS Power Handling
The RMS power is the amount of power the speaker requires to operate safely and properly. RMS Power Handling refers to the amount of power a speaker can handle on a continuous basis. We recommend powering your speakers or subwoofer with 80%-120% of its recommended RMS rating. The RMS power handling specification is typically rated per speaker unless otherwise noted.
500 watts
Voice Coil(s)
Dual voice coil subs have more wiring flexibility than single voice coils subs; however, single voice coil subwoofers provide easier hookup options for wiring multiple subwoofers in parallel or series. You may also run a dual voice coil (DVC) sub in parallel, series, or combination. A quad voice coil has four voice coils and is equal to two dual voice coil subwoofers as far as wiring goes.
Dual
Impedance (Per Voice Coil)
The load value (in ohms) that the speakers present to the amplifier per voice coil - the amount of resistance to the current flow. This is a key specification as subs wired in parallel or low impedances can create problems with your amplifier and potentially void all warranties. We encourage you to ask our support department prior to purchase if you do not understand which impedance level will suit your application best.
4 ohms
Voice Coil Diameter
Diameter of voice coil, usually measured in inches.
2"
Sensitivity
An efficiency or sensitivity rating tells you how effectively a speaker converts power into sound. The higher the number, the more efficient the speaker and the louder it will play with the same input power. An efficient speaker helps you maximize your available power. Most sensitivity ratings measure the speaker's output with 1 watt of input, 1 meter from the speaker. Some speakers' sensitivity is measured with 2.83 volts of input, instead of 1 watt.
 
Efficiency (1w/1m) is not an accurate indicator of a subwoofer's output capability and should not be used as a comparison to other speakers or subwoofers to determine which one is "louder".
87 dB
Xmax (millimeters)
Typically measured in millimeters, the Xmax value is the measure of a speaker cone's maximum excursion in one direction while maintaining a linear behavior.
88.9 mm
Subwoofer Design
This is the design of the subwoofer or the opening of the subwoofer enclosure. Each design has it's own benefits, whether it is a square, circle, or oval.

Round/Circle: This is the typical and common subwoofer design. They have a round cone and are a circle in design.

Square: These woofers are able to achieve a greater cone area in a smaller space. Because of the greater surface area, some square subwoofers will be louder than a round subwoofer of the same size.

Round / Circle
Main Cone Color
This is the color of the speaker's or subwoofer's cone.
Black
Woofer Composition
Lightweight woofer cone materials are essential for efficient operation. Poly cones produce exceptional sound and are sturdy against various changes in temperature. Paper cones are very efficient, and when treated for moisture resistance, will perform at a high level. Poly refers to polypropylene, which is thermoplastic or fibers that are polymers of propylene. IMPP refers to injection molded polypropylene, a commonly used process and material in speakers.
Pressed Pulp Fiber
Woofer Surround
A speakers surround is part of the suspension system. The surround protects the cone and prevents it from being displaced as it flexes out from the basket. It is usually made of a durable material like treated foam or rubber in order to withstand the strenuous job of producing bass frequencies.
High-Roll Rubber
Subwoofer Grille
Most subwoofers are able to accommodate a universal grille; however, some subs include a grille and others have a specific, optional grille available for purchase separately. If "yes", then the subwoofer includes a grille. If "optional (sold separately)" the matching grille will need to be purchased in addition to the sub.
No
Re-Cone Kit Available
Some higher end subwoofers have replaceable cone assemblies. In case of a blown woofer, a recone kit allows for a simple replacement, as opposed to purchasing an entire new subwoofer.
No

Recommended Enclosure Specifications

Recommended Enclosure Type
This is the recommended type of enclosure that the subwoofer should be installed into. Some subwoofers are specially designed for particular enclosures.

Sealed: These enclosures completely enclose the air inside the box. These boxes produce a tight bass.

Ported/Vented: These enclosures have a slot of air to escape from the box. The result is a sound that has more "boom".

Bandpass: These are a combination of both sealed and ported enclosures. They can be very efficient, but require tuning for the best response.

Ported / Vented
Sealed
Minimum Sealed Box Volume
This value indicates the minimum sealed box volume that the manufacturer recommends for the subwoofer. The volume is typically displayed in cubic feet.
0.90 cubic feet
Maximum Sealed Box Volume
This value indicates the maximum sealed box volume that the manufacturer recommends for the subwoofer. The volume is typically displayed in cubic feet.
1.25 cubic feet
Minimum Ported Box Volume
This value indicates the minimum ported box volume that the manufacturer recommends for the subwoofer. The volume is typically displayed in cubic feet.
1.50 cubic feet
Maximum Ported Box Volume
This value indicates the maximum ported box volume that the manufacturer recommends for the subwoofer. The volume is typically displayed in cubic feet.
2.5 cubic feet
Top-Mount Depth
The depth when installed on top of the mounting surface. Measured from the bottom of the speaker's magnet to the bottom of the mounting holes on the rim of the speaker.
6-3/4"
Cutout Diameter
The actual diameter of the hole you will need to cut out if you are creating a new mounting location for this speaker, or if you are mounting a subwoofer in a box.
11-7/8"
Shallow Mount Installation
This means that the subwoofer/speaker is designed to be installed in areas that do not have a lot of space. Shallow mount subwoofers are typically found under a seat or behind the seat in some trucks.

Shallow mount speakers will typically have a mounting depth of 2" or less, while shallow mount subwoofers will typically have a mounting depth of 3" or less.

No

Electromechanical Parameters

Free-Air Resonance (Fs)
The free-air resonance frequency of the subwoofer, measured in Hz. At this frequency the weight of the moving parts is perfectly balanced with the subwoofers suspension system.
24 Hz
Equivalent Compliance (Vas)
This is the amount of air that has the same stiffness as the subwoofers suspension. The greater the rating, the lower the stiffness and larger recommended enclosure. It is measured in Liters.
46.4 liters
Total Speaker Q Value (Qts)
This is the subwoofers relative damping (Q) at the resonance frequency (Fs), including all dimensionless losses. Essentially, a high Qts value (closer to 1.0) means the subwoofer is great for sealed enclosures and a low Qts value (closer to 0) means the woofer is great in vented enclosures. A Qts of around 0.45 means the woofer will work decently in either enclosure type.
0.50
Electrical Q Value (Qes)
The subwoofers relative damping (Q) at the resonance frequency (Fs), including electrical losses. Also called the mechanical damping of the subwoofer. The unitless measurement usually varies from 0.5 – 10.
0.45
Electrical Resistance of Voice Coil (Re)
Amount of DC resistance of the subwoofer when measured with an ohm meter. Typically, this will read less than the impedance rating of the subwoofer.
4.8 ohms
Mechanical Q Value (Qms)
This is the subwoofers relative damping (Q) at the resonance frequency (Fs), including mechanical losses. Also called the mechanical damping of the subwoofer. This unitless measurement usually varies from 0.5 – 10.
4.70

Warranty and Return Policy

Parts Warranty Duration
5 years
Labor Warranty Duration
5 years
Warranty Provider
Manufacturer

Summary of Customer Ratings & Reviews

Rating Distribution

5 Star
89%
4 Star
0%
3 Star
0%
2 Star
0%
1 Star
11%

Average Attribution Rating

Durability
4.6
Value
4.4
Features
4.4
Design
4.4
Usability
4.4
Pussytastegood1

Australia

Overall
Durability
Value
Features
Design
Usability
Great Subs For Lows & By Far the bestAvalible for the price

April 7, 2012

I love these subs. I'm running 4 of these On a hifonics colossus over here in Australia and they are great, large enclosure 2.1 cubes per sub tuned to 34hz still hits 20hz easy and bangs at 50hz all day without getting hot on "800wrms" each, probably not after voltage but would be seeing a strong 600wrms. Flex is awsome but they will take a few weeks to wear in even at this power. Only 1 thing is the 8g terminals must have been designed around cheap 8g because mine is hard to get in.

19 of 21 found this helpful

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Steve

Clifton, NJ

Overall
Durability
Value
Features
Design
Usability
It does not get better than this

October 9, 2011

First I have to say thank you to Andrew in Tech Support because after blowing up 3 new subs I finally found the right sub woofer. Andrew told me about this company called Earthquake. Never herd of them. He was so confident that this was what I was looking for. He was right. All off there subs come with a factory 5 year warranty. Which means this company totally stands behind their products. I am using a Kicker ZX 500.1. Amazing pair up and a sealed box. Thanks again Andrew. Ok this sub produces a very very intense bass hit off a very wide range off frequency. With no distortion what so ever. If you are looking for true quality without spending huge amounts of money buy this sub. BUY BUY BUY and do not look back. Oh yea the excursion off this thing is mind blowing. You almost can not believe your eyes. Andrew you are the man. Thanks Dude.

19 of 23 found this helpful

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sparky

pampa tx.

Overall
Durability
Value
Features
Design
Usability
10 years +

May 9, 2013

all i can say is i have 4 of the dbx-12dr i bought them new in 2001 i have abused them like a redheaded step son and they are still hitting hard enough in my extended cab truck they give you the hick ups i want to buy new ones but i keep telling myself why there is nothing wrong with these ones they have been stepped on spilt on and even had the foam surround tore and still keep pounding so finally i told myself just do it so i think im going to replace them with the newer magma series and some new amps and just sell the ones i have till i told my wife and she said no we arent getting rid of them she wants them in her explorer so i guess that is what i will do si if you have any doughts on earthquake kick them to the curb you cant beat the sound for the durability at the price

17 of 20 found this helpful

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Chad

Perkasie, PA

Overall
Durability
Value
Features
Design
Usability
CAN'T GO WRONG!

October 19, 2011

Earthquake is a solid company and yes they stand by their work with that 5 year warranty. My buddy had one of these and for 2 years I knew exactly what woofer I Was gonna get. This sub is exactly what I was looking for. Got a 1500w amp hooked up to it right now and it hits hard and provides that deep bass I was looking for (ported box). Def gonna get a stronger amp tho cause this thing def wants more juice. Overall earthquake is a solid company, quality is what they ware. You want a ballin woofer, grab a dbxi! "Bass, I love you" you will love showing off the flex this thing handles.

17 of 20 found this helpful

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J $krilla

Parts unknown

Overall
Durability
Value
Features
Design
Usability
Good value for the money

August 6, 2011

I bought some of these aobut a year ago. I originally had some JL 12W3-v3 in a ported enclosure per JL specs (1.75 cubic ft per chamber, tuned at about 35 hz). Sound quality was awesome but I found that I was wanting a little more in the lower frequencies. I was gonna go to W6s but I had always wanted to try Earthquake out. Im glad I did. I dropped a pair of these into the enclosure and BOOM. These drop quite a bit lower than the W3s did and the sound quality was good. I had 2 JL 500/1 v2 running these boad boys and spent a considerable amount of time tweaking the amps to perfection only because Im constantly evaluating my settings for optimal performance. But after many genres of music, I finaly arrived at the settings that made these speakers display the raw brute force that I was seeking for when listening to some Lil' Wayne "Leather So Soft" as well as the smooth and refined response needed for Kenny G or The Whispers. It added the appropriate kick when I listened to Guns n' Roses "You Could Be Mine", Ted Nugent "Stranglehold" and Van Halen " Hot For Teacher". George Strait also sounded smooth and rich. As you can see I am a fan of all different genres of music and these speakers handled them all. I do have say that they require a LOT of power. Also they pair I used had an odd smell to them. It almost smelled like a burnt voice coil but it is something in the materials used. They are pressed pulp cones and tend to get a little hot but then again I never gave em a chance to cool off LOL!!! I ALWAYS HAD EM BANGIN!!! Mad xmax (excursion). Anyways, give these guys a try. They were built to get beat on and with a 5 year warranty you cant go wrong. And you will definitly need to go through and tighten up your car and you will need a couple of Dynamat trunk kits.

16 of 18 found this helpful

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Jake

Portage Indiana

Overall
Durability
Value
Features
Design
Usability
Do not buy these woofers

May 20, 2012

I have owned these for 6 months before they blew on me they were good until then but they were hooked to run 800 rms each which earthquake sound Corp said would be fine. One day it hit a really low bass and they blew. My personal opinion don't buy these woofers.

15 of 18 found this helpful

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TheAwesomeAsian

New Milford, CT

Overall
Durability
Value
Features
Design
Usability
Earthquake is GREAT

December 27, 2011

These subwoofers are so nice, im running two of them on a 3000w amp and they hit HARD. One problem I had though was fitting the subwoofer in the box because it was stock. Either way great subwoofer.

14 of 17 found this helpful

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mark

York, PA

Overall
Durability
Value
Features
Design
Usability
Lows

March 24, 2014

Buy these subs. Lowest frequency 12" i have ever owned. That all i even have to say.

11 of 13 found this helpful

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Earthquaker

Salem, Or

Overall
Durability
Value
Features
Design
Usability
Great product!!!

January 25, 2014

I would recommend this product, You can't get a better sound with anything else.

10 of 12 found this helpful

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Accessory Tools and Products

Accessories added

Single 12" Ported Enclosure Custom Black Baffle

Gold Binding post terminals and a high quality 5/8" MDF construction.

Your Price $59.99

12" Dual Hatchback Style Medium Sealed Subwoofer Enclosure

CARB Compliant, 3/4" MDF Dual Hatchback Style Sealed Enclosure w/ Premium Carpeted Finish

Your Price $69.95

12" Single Hatchback Style Medium Sealed Subwoofer Enclosure

CARB Compliant, 3/4" MDF Single Hatchback Style Sealed Enclosure w/ Premium Carpeted Finish

Your Price $43.95

12" Medium Sealed Subwoofer Enclosure

CARB Compliant, 3/4" MDF Sealed Enclosure Lined with Premium Carpeted Finish

Your Price $39.99

Single 12" Venteded MDF Subwoofer Enclosure

12" Vented 3/4" MDF Enclosure Lined w/ Polyfil.

Your Price $44.99

25 ft. of Streetwires 12 Gauge Speaker Cable

You'll need speaker wire to hook up that new subwoofer!

Your Price $37.85

Belva 23 ft. of 12 Gauge Speaker Wire

Ultra-flexible PVC blended jacket for easy installation.

Your Price $14.99

20 Square Feet of Sound Dampening Material

NVX Sound dampening is thicker than competitors, eliminates rattles and gives you bigger bass!

Your Price $53.99

40 Square Feet of Sound Dampening Material

Thicker than the competition, complete sound damping kit for entire vehicle! Use for trunk, doors, roof and floor.

Your Price $89.99

Stinger Sound Dampening Trunk Kit

Stinger's Roadkill sound dampening series is sure to kill unwanted road noise and rattles! Enough sound dampening for your whole trunk!

Your Price $64.87

Stinger Sound Dampening Bulk Kit

Stinger's Roadkill sound dampening series is sure to kill unwanted road noise and rattles! Enough sound dampening for the whole car!

Your Price $94.97

Dynamat Sound Dampening Trunk Kit

Did you know sound dampening will reduce those annoying rattles and even increase your SPL?

Your Price $87.63

Dynamat Sound Dampening Bulk Kit

Did you know sound dampening will reduce those annoying rattles and even increase your SPL?

Your Price $159.99

2" Universal, Professional Heavy Duty Roller for Sound Damping/Dampening

Universal rubber roller to make it easy to install sound dampening.

Your Price $7.99

Car Stereo and Speaker Installation Tool Kit

Includes Test Light, Crimp/Splice Tool, Multi-bit Screwdriver and more.

Your Price $18.99

Cordless Multi-Functional Heat Tool Soldering Iron Kit

Continuous working lock allows you to work without holding down trigger.

Your Price $74.99

12 oz. Can of Adhesive Spray

Spray adhesive used for adhering carpet to subwoofer boxes without bubbles.

Your Price $8.97

Gold Plated Dual Terminal Banana Plug Connector

Enables an expandable, secure connection accepting up to 8 gauge wire.

Your Price $1.99

Universal 12" Subwoofer Grille

Keep your subwoofer safe from accidental damages with this amazing grill.

Your Price $19.95

Universal 12" Subwoofer Grille

Keep your subwoofer safe from accidental damages with this amazing grill.

Your Price $19.95

12" Protective Waffle Subwoofer Grille

Keep your subwoofer looking amazing while keeping it safe.

Your Price $6.99

Scosche SPL Meter

Monitor the noise level of your new car audio system with this SPL meter measuring from 60-135 dB.

Your Price $21.99

1 Earthquake Sound DBXI-12D Subwoofer

Mono Amp

2 Channel Amp - Bridged

2 Earthquake Sound DBXI-12D Subwoofers

Mono Amp

Mono Amp - Option 1

2 Channel Amp

2 Channel Amp - Bridged

4 Channel Amp - Bridged

3 Earthquake Sound DBXI-12D Subwoofers

Mono Amp

4 Channel Amp

4 Earthquake Sound DBXI-12D Subwoofers

Mono Amp

2 Channel Amp

2 Channel Amp - Bridged

4 Channel Amp

Browse 1 question
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What amp I need to push a earthquake dbx1-d12?
A shopper on Sep 16, 2016
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Product Summary

Manufacturer

Model Number

DBXI-12D

UPC

1114689759865

Weight

21.50lbs

Internal SKU

dbxi12d

Internal Product ID

38107

Sonic Electronix Wiring Guide

Wiring Diagram Legend

Warning: The image depicted shows the resistance change when wiring multiple subwoofer terminals. Please refer to your subwoofer's owner's manual for the proper wiring of its terminals. Sonic Electronix, Inc. is not responsible for damage caused to your audio system or vehicle due to improper installation. Please call tech support at 1-877-289-7664 if you require additional assistance.

Product Name: Earthquake Sound DBXI-12D

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