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MTX Audio TS8512-44

12" Dual 4 ohm Thunder Square TS85 Series Car Subwoofer

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MTX Audio TS8512-44

12" Dual 4 ohm Thunder Square TS85 Series Car Subwoofer

$229.99

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25 ft. of Streetwires 12 Gauge Speaker Cable

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$37.85

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20 Square Feet of Sound Dampening Material

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$53.99

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

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Authorized MTX Dealer
Introducing the newest addition to the MTX Thunder Woofer family, Thunder Square (TS). These subwoofers are serious. The Mad Scientists at MTX were dreaming up hundreds of designs before creating the loudest square subwoofer in the class. Mission accomplished! Thundersquare subwoofers are capable of delivering volume displacement unlike any other in their class. With 1.75" voice coils and up to 125 oz. magnets, they are like nothing you've ever heard!

The TS85 subwoofers have a cast aluminum basket for strength and durability as well as a black anodized aluminum cone with a laser etched MTX Audio gothic logo. Point blank - they sound as good as they look. They are perfect for any ride from rusted out Rivieras to bangin' Bentleys and they will be the envy of the neighborhood.

  • 12" Dual 4 ohm MTX Thunder Square 8500 Superwoofer
  • Power Handling:
    • Peak: 1500 watts
    • RMS: 750 watts
  • Impedance: Dual 4 Ohm
  • Black anodized aluminum cone
  • ALDS (Asymmetrical Linear Drive System)
  • Spider Plateau Venting cooling system
  • 1-3/4" Voice coil
  • 125 oz. magnet
  • Sensitivity: 87.60 dB
  • Authorized Internet Dealer
  • 1-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.
Thunder Square (TS85)
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.
750 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.
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".
87.6 dB
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.

Square
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.
Aluminum
Magnet Structure
Defines the overall structure of the subwoofers magnet.
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.
1.0 cubic feet
Optimum Sealed Box Volume
This value indicates the ideal sealed box volume that the manufacturer recommends for the subwoofer. The volume is typically displayed in 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.
1.0 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.
1.5 cubic feet
Optimum Ported Box Volume
This value indicates the ideal ported box volume that the manufacturer recommends for the subwoofer. The volume is typically displayed in 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.
1.5 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.
8-7/8"
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"
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.
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.
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.
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.
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.
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.
Efficiency Bandwidth Product (EBP)
This number represents the trade off between having an efficient woofer and one with a wide bandwidth. To calculate this number, take the Fs and divide it by the Qes. If the number is below 50, the woofer is designed for a sealed enclosure only. If it's between 50-100 it can be used in either. Lastly, if it's greater than 100 it's designed for vented enclosures.

Specials with this Item

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Warranty and Return Policy

Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Manufacturer

Summary of Customer Ratings & Reviews

Rating Distribution

5 Star
93%
4 Star
7%
3 Star
0%
2 Star
0%
1 Star
0%

Average Attribution Rating

Durability
4.7
Value
4.4
Features
4.7
Design
4.9
Usability
4.6
Kevin R

Tampa FL

Overall
Durability
Value
Features
Design
Usability
SickSound

November 24, 2011

WOW I went to a local car show in my city. This guy had 2 of these in his Volkswagen Golf. They sound so louder then my 2 12" RE Audio XXX. He had them hooked up to a Alpine MRP M2000. I asked him whats the RMS on each woofer. He said 750 and mtx under rated them. So i did not believe him. I'm running a Rockford Fosgate T2500 to my sub and they sound good but not as good as this guy.

5 of 6 found this helpful

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Johnny Ray

Hattiesburg, Ms

Overall
Durability
Value
Features
Design
Usability
SLAMZ!

December 29, 2010

I recently purchased this sub due to wanting to downsize from a 15'' sub and to save some space. The guy i got it from said 1 was enough for him and gave me a good deal. When i finally got this monster hooked up, i was blown away. So much SPL and SQL right out the box. I can only think of one thing wrong with this sub. The cone will dent very easily. Everything else is a positive. It's a killer!!!!!!

4 of 5 found this helpful

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Luke

Minneapolis, MN

Overall
Durability
Value
Features
Design
Usability
Loud!

September 19, 2010

This sub was so ridiculous when I first through it in a 2 cubic ft ported box. I had it hooked up to a kicker 750.1 and it slammed. The clarity was very good too. I would have to say that this sub would easily compete with the L7 if not better. Fantastic woofer with great looks too.

4 of 5 found this helpful

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Magicmoll

Canada

Overall
Durability
Value
Features
Design
Usability
These pound like hell.

March 27, 2012

I have 2 mtx thunder 8512 12" subs and they are powered but a Polk audio pa1000.1 amp @ 1 ohm and I can't believe how much these sub pound. I'm running 0 awg wire with the big three under the hood and I don't know anyone who has anything close to compare to the performance of my system. Insane is not even Enough of a word to explane the slamming and pound you In the back of yor head not to mention the fact that it sereiously takes your breath away. I've had many systems and this one is by far the best. Try them out if your looking for something that is said to be too much cause that is exactly what they are. Thanks mtx I've never been happier.

3 of 4 found this helpful

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Dennis G

Pine Bluff Arkansas

Overall
Durability
Value
Features
Design
Usability
Ecxellent in everything Five STAR

February 5, 2012

I just bought 2 of these to replace my 2 15" Alpine Type R. OMFG these 12's are the loudest i have ever heard. So much more bass then my Type Rs. i can't believe these subs they sound better then my friend RD Audio Super Heavyweight 18" his system cost him over $3500 and mine cost me under $800. I have my subs hooked up on a Alpine MRP-M2000 and a shuriken BT100 and all 4gauge wiring.

3 of 4 found this helpful

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Alex

Minneapolis MN

Overall
Durability
Value
Features
Design
Usability
Beast subwoofer

November 12, 2011

This subwoofer is loud and so much bass. I have 1 12" on a Kicker 750 and this thing vibrates my whole car. My set up is louder then my friend 2 W6s.

3 of 4 found this helpful

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Jake

minneapolis,mn

Overall
Durability
Value
Features
Design
Usability
awesome sub

March 28, 2010

I have one of these in my 09 impala powered with my kicker zx750.1 amp and it pounds really hard and it sounds great.

3 of 4 found this helpful

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Me

Rochester, NY

Overall
Durability
Value
Features
Design
Usability
Nasty subs

December 22, 2009

I have two of these hooked up in a scion tc and WOW. I had to replace the seal on my trunk. I'm running 1000watts to each sub. They are RMS at 750 but haven't even blinked at 1000. highly recommended. MTX has never failed me

3 of 4 found this helpful

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Shazam

Minneapolis MN

Overall
Durability
Value
Features
Design
Usability
Mind Blowing

December 4, 2011

These subwoofer are sick right out the box. I have 2 12" being powered be MTX 91002 amp which is 1500 RMS. My box is nowhere close to specs and still they hit ((HARD)) I'm on my way to making a bigger box.
Last week i was at my local audio shop. The guy at the desk asked me if I had 2 15" hcca in my car now because before i had one 15" hcca. I told him i sold my hcca and I'm running 2 MTX TS85 he was shock. He said he herd me coming from 2 blocks away and thought i had upgraded my system to 2 15". MTX DON'T BE MEAN SHOW THEM HOW LOUD YOU CAN SCREAM.

2 of 3 found this helpful

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juan

east moline, IL

Overall
Durability
Value
Features
Design
Usability
Kicker killer

October 26, 2010

this sub will beat a 2 kicker l7 15 hands down my friend has two of these and u can barley breath is his car they hit so hard and have great sound quality so its good for spl an sq. great buy

2 of 3 found this helpful

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Homie G.

Scottsbluff, NE

Overall
Durability
Value
Features
Design
Usability
Legit Thunder

May 4, 2010

I have 2 of those on the MTX thunder elite 1501D, just the box haven't finish building it. It's already nice looking everything. The only down side is playing for over 4 hours to break in. Damn, that's a long time. but it's all about the sound and look. Best subs I have ever owned so far. Just little over priced that's all, but people will buy anything at different price levels.

3 of 5 found this helpful

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J

chicago

Overall
Durability
Value
Features
Design
Usability
.....

August 27, 2009

i had 6 of these and i broke my windshield it was insane

2 of 3 found this helpful

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Red Frontier

Trinidad and Tobago

Overall
Durability
Value
Features
Design
Usability
Proud owner of two MTX Squares

February 11, 2009

These are the best 12" subs I've ever used, and the bigger the box the better it performs.

2 of 3 found this helpful

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migraine kustoms

edgewater, fl

Overall
Durability
Value
Features
Design
Usability
good but pricey

January 16, 2009

Killer sub but think of it as a 15" and ditch mtx's box specs if you like your music. I use a much bigger box and I end up with a smile on my face every time I drive.

3 of 5 found this helpful

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Accessory Tools and Products

Accessories added

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 $97.99

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 $88.86

Dynamat Sound Dampening Trunk Kit

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

Your Price $94.95

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

1mm All Purpose Solder

Solder is all purpose for use on most projects where solder is needed.

Your Price $7.99

12 oz. Can of Adhesive Spray

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

Your Price $8.99

Spring Post Terminal Cup

Makes adding a spring post terminal to an enclosure simple! Banana clip ready!

Your Price $3.99

Gold Plated Dual Terminal Banana Plug Connector

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

Your Price $1.99

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 MTX Audio TS8512-44 Subwoofer

Mono Amp

2 Channel Amp - Bridged

2 MTX Audio TS8512-44 Subwoofers

Mono Amp

Mono Amp - Option 1

2 Channel Amp

2 Channel Amp - Bridged

4 Channel Amp - Bridged

3 MTX Audio TS8512-44 Subwoofers

Mono Amp

4 Channel Amp

4 MTX Audio TS8512-44 Subwoofers

Mono Amp

2 Channel Amp

2 Channel Amp - Bridged

4 Channel Amp

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Product Summary

Manufacturer

Model Number

TS8512-44

UPC

715442352005

Weight

28.00lbs

Internal SKU

ts851244

Internal Product ID

15419

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: MTX Audio TS8512-44