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MTX Audio T9512-44

12" Dual 4 ohm Thunder 9500 Series Car Subwoofer

Discontinued
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This item has been discontinued

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Thunderous Bass Impact

The chill finally crawls from off of your spine. For a moment there are no words that can describe the gut-wrenching bass tones you just heard. The next moment, you can’t stop thinking of new ways to let the world know of your experience. You’ve just been exposed to an MTX Audio T9500 superwoofer, and you won’t soon forget the experience. These subwoofers are an industry standard for those looking to make bass tones once thought unheard stand out right in your face and make their presence known.

Boasting a rating of 1000 watts of true RMS power handling, these subwoofers can really handle some power! A 260oz. magnet allows the T9500 subwoofers for a full 4” of peak-to-peak excursion! This means with the Thunder 9500 you get a full 1” of Xmax. A 4” voice coil allows for some mean bass reproduction and can really help reproduce the gut-wrenching deep low bass that a lot of SPL competitors are after.

Authorized MTX Dealer
  • 12" Dual 4 Ohm Thunder9500 Subwoofer
  • Power Handling:
    • Peak: 2000 watts
    • RMS: 1000 watts
  • Impedance: Dual 4 Ohm
  • Injection molded, carbon filled, polypropylene with aluminum deposition cone woofer
  • High roll NBR Surround to maximize excursion
  • Asymmetrical Linear Drive System (ALDS) with flat progressive spider
  • Stitched cone for added durability
  • Spider plateau venting cooling system
  • 4" Voice coil
  • 260oz. Magnet structure
  • Sensitivity: 88 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 9500
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.
2000 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.
1000 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.
Frequency Response
The range of frequencies the speaker will reproduce (lowest frequency to the highest). Bigger is better, meaning the wider the range, the better. The optimal range is 20 - 20,000 Hz (which is the range of human hearing).
31 - 150 Hz
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".
88 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.
25.4 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.
Silver
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.
Injection Molded Carbon Filled Polypropylene w/ Aluminum Deposition
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.
Nitrile Butadiene Rubber (NBR)
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.
1.5 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.
1.75 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.
1.75 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.
9-3/4"
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"
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
84%
4 Star
13%
3 Star
3%
2 Star
0%
1 Star
0%

Average Attribution Rating

Durability
4.8
Value
4.5
Features
4.8
Design
4.7
Usability
4.8

Denzel

Chesapeake, VA

Overall
Durability
Value
Features
Design
Usability

GREAT SUBWOOFER BUTTTTTTTTT

October 10, 2011

For the price of this single subwoofer, you can get two of the orion HCCA subs, which have a higher rms, more excursion and an overall louder sound.

2 of 2 found this helpful

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Rog

Bahamas

Overall
Durability
Value
Features
Design
Usability

Wowwwwwwwwwww

June 23, 2013

This sub exceeded expectations. I have one in a ported box with a kicker zx 1000 amp. Big 3 upgrade. Xs power battery and 0 guage everything. Sounds like 4 powerful 12's.

0 of 0 found this helpful

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bob

lexington, ky

Overall
Durability
Value
Features
Design
Usability

wow

April 7, 2012

I bought two of these and a thunder elite 4001d from a buddy of mine. I had to put them in my girlfriends Hyundai tiburon because my car was in the shop. They literally shook the hatch glass out. Great subs. Now have them in my civic hatch and the amp turned all the way up and its a massage every time I drive. :)

0 of 0 found this helpful

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jamie

lockport, NY

Overall
Durability
Value
Features
Design
Usability

Great Value!

February 8, 2012

Great item... would def order again. Great buy.

0 of 0 found this helpful

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squishimonster

sylmar, CA

Overall
Durability
Value
Features
Design
Usability

infactuated

November 7, 2011

I didn't buy this woofer from Sonic, I got it as a gift after my friend dropped it and ripped the cone wich took me 5 minutes to repair anyways. This woofer is awesome my friend has a solo x 12" with a 2000w brutus amp and my truck sounds about the same with a 1000watt hifonics HFI. Ohhh and the difference from my built to specs box compared to his built to spec box its amazing how small the box the mtx requires and his takes up his whole trunk of his suv. I LOVE this woofer. I'm guessing it would take about 1400 rms with no problem.

0 of 0 found this helpful

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Suge

Dorchester

Overall
Durability
Value
Features
Design
Usability

Mtx thunder 9500

October 13, 2011

Awesome powerful banging subwoofer, couldn't ask for more power.

0 of 0 found this helpful

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Andrew

Northridge, CA

Overall
Durability
Value
Features
Design
Usability

Mtx 9512

September 9, 2011

Man I bought this Years ago and its still hitting hard lol. Just wanted to share! =) It hits deep with a stong amp.

0 of 0 found this helpful

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P-Dub

Kentwood Mi

Overall
Durability
Value
Features
Design
Usability

Wooaaah

August 22, 2011

This sub is redic. I jus put it on a hifonics brutus 1700 soo it gets 1200 rms and it can totally take more. It drinks the 1200 watts like its nothing. Good strong deep bass. 2.5 cube box tuned to 32htz+ 1200 watts = a good combination.

0 of 0 found this helpful

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Redeyz!

Hoodbridge, Va

Overall
Durability
Value
Features
Design
Usability

THE SUPER WOOFERRRRR!

January 10, 2011

You know I am truly exhausted! I have had this subwoofer before and was proud to have it. I am sooo sick of ppl saying who is the best out here. the truth is IT DOESNT MATTER! Now! that I've got that off my chest. I will say that THIS SUB! THIS SUB OOOOOH LAWD THIS SUB SPL/SQL is the best for the buy! Loud, and deep! the deeper the box the better this sub will work for you in all capacities. I have two and want another one now. I will get a triple box just right for these super woofers! ONCE AGAIN 9500's LEEEGOOO!

0 of 0 found this helpful

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REDEYZ THE IRONMAN

DC/MD (metropolitan area)

Overall
Durability
Value
Features
Design
Usability

Awsome Bass

November 12, 2010

Me and this sub have a never-ending relationship! For the price is steep! yes but one is truly enough if you wanna reach high decibels. This sub is under-rated so be careful! You may get a tickets for noise violation. The right box and set up and youre a winner and these fake audio-philes along with real ones will be intimidated by you!

0 of 0 found this helpful

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Quan

Columbia, SC

Overall
Durability
Value
Features
Design
Usability

straight up slams

August 19, 2010

I have this sub in a small ported box on a 1500 rms amp and this sub slams. It has knocked the lights loose in my trunk and sounds great. I would recommend this sub to anyone who can afford it. This sub weighs like 75 pounds by the way

0 of 0 found this helpful

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Red

Texas

Overall
Durability
Value
Features
Design
Usability

outstanding

May 24, 2009

I have two 9500's each in a 2.25 cubic pro box.each have a MTX TA81001 pushing them in 2 ohm configuration and these things pound so hard. They are rated at 1000watts but birth certificate says 1550watts. Don't know how many dbs it hitting but well over 130 i'd say. They have a pretty price. But if u want a sub that can handle everything you can throw at it this is for you.Just take the challenge and you will find out for your self

0 of 0 found this helpful

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alex

woodridge,IL

Overall
Durability
Value
Features
Design
Usability

GREAT

April 20, 2009

They are great price nowadays and they pound hard. I dont care what you say about the w7 i have heard both and this one truely hits harder and smoother. This sub can handle at the very least around 1500 watts even though it says 1000 watt rms. I have this sub hooked up in a small staturn sl2 and it BANGS.

0 of 0 found this helpful

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Stephen

Breaux Bridge, LA

Overall
Durability
Value
Features
Design
Usability

love it

December 17, 2008

i have been having the 9500 for 6 months in a 08 f150 4 door and it beats. i can make all my lights dim and my roof of my truck jump. i have it in a 5 cube box home made but its out of this world. if ur looking for a sub that is nuts get the mtx 9500 it cost but if ur looking to make some noise and show off its the way to go.

0 of 0 found this helpful

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Paul

Rockton, IL

Overall
Durability
Value
Features
Design
Usability

One of the loudest I've heard

August 12, 2008

This sub is great. I recommend it to anybody that can afford its high price. The 1000 watt rating is bs. I've seen it handle 1500 watts like it was nothing. It is loud and the sound quality is great. I've never heard a w7, so i cant put in an opinion about which one is better. Overall, its a kick ass sub.

0 of 0 found this helpful

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John

muskegon, MI

Overall
Durability
Value
Features
Design
Usability

Are you kidding...?

January 9, 2008

You can do all the math you wanna do to say that the JL W7 is better.... but go read all the reviews go see all of the video footage. Go to mxt.com and watch how fast the w7 blows go read about all of the advantages mtx has over the w7. And if you wanna take that as mtx being bias to their own product... go to other companies like orioncaraudio.com and see how they stack up. The W7 doesnt campare and its alot more expensive. MTX made a great sub here.

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Kim

Cincinnati, OH

Overall
Durability
Value
Features
Design
Usability

nzone3

November 14, 2007

I have 6 9500 in a expedition with 6 2000 watt amps 1000 to each voice coil.I have had 3 ear surgerys in the past two months. The sides of my car come in and out about 3 inches these subs are all power they are the greatest. I can not keep them on while i drive i just have this for competition. These subs are rediculous.

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Tricia

Sunrise Beach, MO

Overall
Durability
Value
Features
Design
Usability

Very nice sub

November 9, 2007

I have one of these right now and just recently ordered a second one...They pound very good for a single 12 inch sub. I would recommend getting one if it is in your price range. I am powering mine with a mtx 81001 amp and can't wait to get my second one.(just one of these is louder than any 2 12's I have ever seen(at my school)) I did have one problem with it, I was playing some extremely low tones and the tensil lead ripped off of the former. But I sent it back to mtx and they replaced it.

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Thomas

Ontario, CA

Overall
Durability
Value
Features
Design
Usability

Mind over Matter

October 12, 2007

I have one of these subs along with a te1501d and in a sealed enclosure. This sub is well capable of doing some good handling, and if in a sealed rather than vented enclosure will hit the notes most claim they can't. If your looking for a sub that strokes at subsonic then this isn't for you, resonance hits at 31hz, and also is changed by the enclosure that restricts certain frequency along with the shape of the car that also eliminates certain resonances. Basically when it comes to math, the JL w7 is a louder sub by 1 dB which = 1/3 more power as 3 dB = 3* more power. Most will say "but mtx has a higher power handling rms" that doesn't really matter when it comes to dB sensitivity which in the end JL takes the cake..Im a hard earned mtx fan but I do my homework, JL is the better sub if all elements are properly setup, to the naive stereo installer a walmart bought pioneer installed by a pro is potential to out due a competition subwoofer installed by an amature.

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Brian

Florissant, MO

Overall
Durability
Value
Features
Design
Usability

9500's

October 10, 2007

I own 2 of these w/ an MTX 7801 goin to each one. They sound great, got some nice tight bass. Loud enough to get me tickets and shake my rearview mirror off. And be ready to get lots of dirty looks. I don't know why eveyone is tryin to compare the 9500 and W7. Volume displacement= surface area*xmax. the 12 W7 beats the 12 9500 and the 13 W7 beats the 15 9500. It's on MTX's website on their Volume Displacement calculator. but i got mine for 200 a piece through MTX and JL can't really compete with that.

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Accessory Tools and Products

Accessories added

Single 12" Subwoofer Angled Truck or Hatchback Box Enclosure

CARB Compliant, 5/8" MDF Shallow Sub Enclosure Lined with Polyfil.

Your Price $34.99

Single 12" Sealed MDF Subwoofer Enclosure

12-inch Sealed Car Sub Box Made with 3/4" MDF and lined w/ Polyfil.

Your Price $34.99

Single 12" Ported Enclosure Custom Black Baffle

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

Your Price $59.99

25 ft. of Streetwires 12 Gauge Speaker Cable

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

Your Price $44.95

Belva 23 ft. of 12 Gauge Speaker Wire

Ultra-flexible PVC blended jacket for easy installation.

Your Price $14.99

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 $119.99

Dynamat Sound Dampening Bulk Kit

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

Your Price $159.95

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 $99.99

12 oz. Can of Adhesive Spray

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

Your Price $6.99

Spring Post Terminal Cup

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

Your Price $3.99

40" x 15 Ft Piece of Premium Un-Backed Automotive Trim Carpet

Durable design for long life-span, available in many colors and shades.

Your Price $39.99

Gold Plated Dual Terminal Banana Plug Connector

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

Your Price $3.99

Car Stereo and Speaker Installation Tool Kit

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

Your Price $12.99

Xscorpion 9-Piece Nylon Plastic Pry and Chisel Tool Set

Easily removes dash/trims, door clips, panels and pins, rubber grommets and vehicle emblems.

Your Price $14.99

Cordless Multi-Functional Heat Tool Soldering Iron Kit

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

Your Price $79.99

4 Ft of 1/4" Thick Black Heat Shrink Tubing

Provides abrasion resistance and added protection for your cables.

Your Price $3.99

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

1mm All Purpose Solder

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

Your Price $8.99

12" Protective Waffle Subwoofer Grille

Keep your subwoofer looking amazing while keeping it safe.

Your Price $4.99

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

AutoSound 2000 CD-101

Low frequency test CD

Your Price $11.99

Impedance Meter / Signal Generator

Easy to locate tuning frequencies of passive radiators and ported enclosures

Your Price $299.99

1 MTX Audio T9512-44 Subwoofer

Mono Amp

2 Channel Amp - Bridged

2 MTX Audio T9512-44 Subwoofers

Mono Amp

Mono Amp - Option 1

2 Channel Amp

2 Channel Amp - Bridged

4 Channel Amp - Bridged

3 MTX Audio T9512-44 Subwoofers

Mono Amp

4 Channel Amp

4 MTX Audio T9512-44 Subwoofers

Mono Amp

2 Channel Amp

2 Channel Amp - Bridged

4 Channel Amp

Product Summary

Manufacturer

Model Number

T9512-44

UPC

715442350926

Weight

70.00lbs

Internal SKU

t951244

Internal Product ID

1608

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 T9512-44