Earthquake Sound TNT-12S

1250WMax (400W RMS) 12" TNT Series Single 4-Ohm Subwoofer

Product videos

• 1250W Peak
• 400W RMS
• Polypropylene Cone Body
• High Roll Surround
• Spring Loaded Terminals
• Triple Voice Coil Vents

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Product Highlights

• 1250W Peak
• 400W RMS
• Polypropylene Cone Body
• High Roll Surround
• Spring Loaded Terminals
• Triple Voice Coil Vents


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Earthquake Sound 12" TNT Series Subwoofer

Sonic Electronix is now carrying the Earthquake Sound TNT Series Car Audio Subwoofers. The TNT-12S TNT Series 12" Subwoofer has a peak power rating of 1250 watts and a RMS rating of 400 watts. This sub will produce some earth shaking bass and is constructed with a polypropylene cone body and a high roll foam surround. This woofer is also equipped with a 2" single 4 ohm aluminum bobbin voice coil and a 120 oz magnet structure. Add some bumps in your trunk and enhance your cars stereo system with this Earthquake Sound TNT Series Subwoofer.

Product Features

  • 12" Voice Coil TNT Series Car Subwoofer
  • Power Handling:
    • Peak: 1250 watts
    • RMS: 400 watts
  • Recommended power range: 200 - 400 watts RMS
  • Impedance: Single 4 ohm
  • Polypropylene cone body for excellent durability
  • High roll foam surround provides generous amounts of excursion
  • Spring loaded terminals for easy and secure connection
  • Triple voice coil vents keeps woofer operating at safe temperature
  • Durable dustcap with Earthquake logo
  • Extreme sound quality enhancement
  • 2" Single 4 ohm aluminum bobbin voice coils
  • 120 oz. Double stacked high density magnet
  • Xmax: 50.8mm (2") Peak-to-peak
  • Sensitivity: 87 dB
  • Mounting Depth: 6"
  • Cutout Diameter: 11-11/16"
  • 1-year Manufacturer's warranty

Subwoofer Wiring Guide

Wiring Guide to Wire 1 Earthquake Sound TNT-12S Subwoofer

Mono Amp

2 Channel Amp - Bridged

Wiring Guide to Wire 2 Earthquake Sound TNT-12S Subwoofers

Mono Amp

2 Channel Amp

4 Channel Amp - Bridged

Wiring Guide to Wire 3 Earthquake Sound TNT-12S Subwoofers

4 Channel Amp

Wiring Guide to Wire 4 Earthquake Sound TNT-12S Subwoofers

Mono Amp

Mono Amp - Option 1

2 Channel Amp

2 Channel Amp - Bridged

4 Channel Amp

Specifications & Details

Subwoofer Specifications
TNT Series
Subwoofer Size
Peak Power Handling
1250 watts
RMS Power Handling
400 watts
Voice Coil(s)
Impedance (Per Voice Coil)
4 ohms
87 dB
Xmax (millimeters)
50.8 mm
Subwoofer Design
Round / Circle
Main Cone Color
Woofer Composition
Woofer Surround
High Roll Foam
Subwoofer Grille
Re-Cone Kit Available
Recommended Enclosure Specifications
Recommended Enclosure Type
Ported / Vented
Minimum Sealed Box Volume
1.27 cubic feet
Maximum Sealed Box Volume
1.60 cubic feet
Minimum Ported Box Volume
1.35 cubic feet
Maximum Ported Box Volume
1.75 cubic feet
Top-Mount Depth (Mounting Depth)
Cutout Diameter
Shallow Mount Installation
Warranty and Return Policy
Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider

Item Details


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Product and How-to Videos

Customer Ratings & Reviews

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Customer Reviews

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So far so good….

I bought these because of the price they were $49.99 when I got them so really couldn’t go wrong…I am running them with a Hifonics Colossus at 600 watts rms a piece they seem to be holding up good and sound very good hitting low notes very well with good sound quality…I have always had name brands like Kicker and Alpine and these sound every bit as good to me I plan on putting 6 in my Excursion if these hold up so yes I am beating on them and will update my review in a month or two. I gave low scores on features and ease of use because of being only a single 4 ohm VC

By Kenneth on July 31, 2012


found this helpful.

Sick Bass!!

I have this sub in a ported box, running off a Power Acoustik Monoblock @600 w/rms. In my 2004 Cadillac Deville, rattles the panels and all my mirrors with only one sub! SICK BASS my friends, Earthquake and Sonic Electronix.

By Rami on March 8, 2013


found this helpful.

nice sub

These Earthquakes are the first subwoofer i have ever owned. I am happy with the sound the bass hit really hard an smooth in a close box will buy earthuake sub again if these hold up. Only had 2 months and they hit.

By Steven on June 9, 2012


found this helpful.

Bass for your money's worth

Great bass for the price. Hits lows pretty well, and definitely bumps. If you are looking for an improvement in car audio, I'd recommend this sub. But, in my opinion, it's really all about the amp that you use to power it and the box that you use to house it. Overall, great woofer for the price.

By Zach on May 28, 2013


found this helpful.


This sub has a nice deep sound to it. I like 15" subs myself but thought I'd try a 12" just for the thrill of it. I made my enclosure a little bigger than the Earthquake specs because theirs was for 40htz and I wanted mine a little lower than's about 35 and sounds amazing. Friends who have 2 12" are blown out by what my 1 subwoofer can do. I definitely recommend this sub to anybody that doesn't want to spend an arm and a leg for a system. I usually go with Audiopipe. My Eye Candy15 is $150 for the sub. But I'll definitely buy this again if I had to.

By Juan on May 23, 2014


found this helpful.

Great Product!!!!

This sub is a great performer and value. But under extreme use.. Its to your benefit to super glue the seam to the cone!! Had one separate under extended bass notes. Super glued it and beats like a champ.

By Big Ra 334 on October 31, 2013


found this helpful.

these things pound!!!

2 subs put in a dual 1.48 cubic foot box tuned to 38 herz do a slight hair trick and window going to build a new box tuned to 32 or 30 hertz and we will see wat these puppies do

By codey on June 15, 2013


found this helpful.

Tons of X-max at a low price.

A decently built low cost driver with a high X max and decent power handling. Great cooling for the voice coil for a low price woofer. Looks decent. Put two into a 4.2 Cube box with a slot port tuned to 32Hz off of a Hifonics 1000.1d for a friend and it has a little window flex. Pretty impressed.

By Jamey on January 4, 2013


found this helpful.

Didn't last long I

They were awesome at first and slowly got worse then stopped working. One just stop playing then the next one still some what works but goes in n out.

By jonathan on January 3, 2013


found this helpful.

Great woofer

I recommend these subs to anyone who is looking for a good clean sound. I have two of these in a ported box on a MB quart onx.1000D in my maxima and they slam. Good lows and mid bass response.

By Chad on August 4, 2012


found this helpful.


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