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Earthquake Sound TREMOR-X128

12" Single 8 ohm TREMOR-X Series Car Subwoofer

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Feel the Earth Move and Quake with Tremor-X Subwoofers

The TREMOR-X128 12" single 8 ohm subwoofer by Earthquake Sound is the kind of woofer no car audio enthusiast should be without. Its pressed pulp fiber cone and high-roll rubber surround provide sturdiness, rigidity, and increased performance, while the Turbine Cooled Transducer technology keeps the voice coil at lower temperatures for longer and louder bass reproduction. The woofer also features an anti-wobble cone construction and reinforced dust cap construction for improved linear movement, thus creating a nice steady bass at any volume level. Its spring-loaded terminals offer a quick and simple installation while the thick density magnets offer better efficiency. This Tremor-X series subwoofer has everything you need from a subwoofer and it's even marine compatible for installation on boats, not many other woofers can say that. In today's economy this woofer is the best bang for your buck.

  • 12" Single 8 ohm Tremor-X Series Subwoofer
  • Power Handling:
    • Peak: 1250 watts
  • Impedance: Single 8 ohm
  • Pressed pulp fiber cone
  • High roll surround
  • TCT (Turbine Cooled Transducer) technology
  • Anti-wobble cone construction
  • Military grade voice coil
  • Spring loaded speaker connections
  • High current heavy-duty stitched tinsel leads
  • Reinforced dust cap construction
  • Spring loaded terminals
  • Thick high density magnet
  • Marine compatible construction for installation on boats
  • Sensitivity: 86.80 dB
  • Mounting depth: 5-1/2"
  • Cutout dimensions: 11"
  • Authorized Internet Dealer
  • 5-year Manufacturer's warranty
Thiele/Small Parameters
  • Free Air Resonance (Fo): 27 Hz
  • Electrical "Q" (Qes): 0.493
  • Mechanical "Q" (Qms): 5.3508
  • Total Speaker "Q" (Qts): 0.6359
  • Effective Piston Area (Sd): 81.392 sq. in.
  • REVC: 6.67 ohm
  • BL: 17.01 TM
  • VAS: 3.539 cubic feet
Subwoofer Specifications
Subwoofer SeriesTremor-X
Subwoofer Size12"
Peak Power Handling1250 watts
RMS Power HandlingN/A
Voice Coil(s)Single
Impedance (Per Voice Coil)8 ohms
Voice Coil DiameterN/A
Frequency ResponseN/A
Sensitivity86.80 dB
Xmax (millimeters)27.94 mm
Subwoofer DesignRound / Circle
Main Cone ColorBlack
Woofer CompositionPressed Pulp Fiber
Woofer SurroundHigh Roll Foam
Magnet StructureN/A
Subwoofer GrilleNo
Re-Cone Kit AvailableNo
Recommended Enclosure Specifications
Recommended Enclosure TypeBandpass
Ported / Vented
Sealed
Minimum Sealed Box Volume1.22 cubic feet
Maximum Sealed Box Volume1.22 cubic feet
Minimum Ported Box Volume2.08 cubic feet
Maximum Ported Box Volume2.08 cubic feet
Top-Mount Depth5-1/2"
Cutout Diameter11"
Shallow Mount InstallationNo
Electromechanical Parameters
Free-Air Resonance (FS)27 Hz
Electrical Resistance of Voice Coil (Re)6.67 ohms
Electrical Q Value (Qes)0.493
Mechanical Q Value (Qms)5.3508
Total Speaker Q Value (Qts)0.6359
Equivalent Compliance (Vas)100.15 liters
Warranty and Return Policy
Return Policy Standard Return Policy
Parts Warranty Duration5 years
Labor Warranty Duration5 years
Warranty ProviderManufacturer
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Subwoofer Grilles
Protect your subwoofer while making your enclosure look great! These subwoofer grilles are the perfect addition to your new subwoofer.
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12" Universal Subwoofer Grille12" Universal Subwoofer Grille
Protect your subwoofer with this aluminum grille that is simple to install.
$9.99
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 TREMOR-X128Earthquake Sound TREMOR-X128$104.95

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

Product Summary

Manufacturer: Earthquake Sound
Model number: TREMOR-X128
UPC: 1112868975945
Weight: 10.50 lbs
Internal SKU: tremorx128
Internal product ID: 38129

Price Information

$199.00

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$104.95

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Customer Testimonial

This was the best on line order that i have ever done. I found my product easily, the price was good, easily paid using my debit card, received it as promised in perfect condition. Also i wanted an unusual color and your site was the only one that had it. Thanks for a great experience!

- Lynn R. from Costa Mesa

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