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MTX Audio T812-44

500W 12" Thunder 8000 Series Dual 4 ohm Subwoofer

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List price $399.99

$149.99

with warranty

You Save: $250.00 (62.50%)

Arrives by Monday, Aug. 11 to zip 98109

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Bundled Savings with this Product

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25% Off on the Subwoofer Box!

Save 25% off a 12" sealed subwoofer enclosure with your purchase!

8.75

32943

502

MTX Audio T812-44

$149.99

+

25% OFF

Single 12" Sealed MDF Subwoofer Enclosure (Belva MDFS12)

$34.99

Special Price $26.24 ($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 1)

Combined Total Price

$176.23

You Save $8.75

Elegance and Performance

Thunder 800 series subwoofers are MTX Audio's new 2011 addition to their already popular subwoofer family. The new Thunder 800 series woofers are available in a 10",12" and 15" size with either Dual 4 ohm or Dual 2 ohm voice coils for each respective size. These woofers will power handle 400 watts RMS up to 600 watts RMS, depending on the size of the woofer. Thunder 800 series subwoofers feature unsurpassed technologies that will set them apart from other subwoofers within their category.

The MTX Audio T812-44 is a 12" Dual 4 ohm subwoofer that has a power handling rating of 1500 watts Max and 500 watts RMS. The woofer features staple MTX technologies such as Spider Plateau Venting, which cools the voice coil directly for increased performance and power handling. The woofer also features an Asymmetrical Linear Driver System (ALDS) that allows higher output with less distortion by creating constant linear movement that increases performance and sound quality. To give it elegance this woofer features a glass fiber cone that provides superb stiffness-to-weight ratio, which increases sensitivity and performance. The woofer also features an original MTX die-cast aluminum frame that reduces resonance and improves the quality in your sound reproduction. With compression terminals and a 428 aluminum voice coil wire, these woofers are manufactured to endure any playing condition, making the a smart and great selection when shopping for quality subwoofers.

Authorized MTX Dealer
  • 12" Dual 4 ohm T8000 Thunder Series Subwoofer
  • Power Handling:
    • Peak: 1500 watts
    • RMS: 500 watts
  • Impedance: Dual 4 ohm
  • Glass fiber cone woofer
  • Spider Plateau Venting (SPV Technology)
  • Congruent Edge Technology (CET)
  • Original MTX die cast aluminium frame
  • Spider with interlaced tinsel leads
  • High-end, heavy duty terminals designed by Streetwires
  • Stitched cone to surround
  • Butyl rubber surround
  • ALDS (Asymmetrical Linear Drive System)
  • Extended pole piece for smooth, linear, piston like drive
  • Exclusive spider plateau venting cooling system
  • 2.4" High temperature dual 4 ohms voice coil
  • 93oz. Triple stacked magnet
  • Sensitivity: 92.6dB
  • Authorized Internet Dealer
  • 1-year Manufacturer's warranty

Product History:

MTX 7512-44 thumbnail
(newest, current model)
MTX T812-44 thumbnail
(previous model, replaced by MTX 7512-44)
MTX T8512-44 thumbnail
(previous model, replaced by MTX Audio T812-44)

Subwoofer Specifications

Subwoofer Series
Each subwoofer manufactured is part of a series. This is the name of the subwoofer's series.
Thunder 8000 (MTX)
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.
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).
32 - 200 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".
92.6 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.
16 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.
Dark Gray
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.
Glass 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.
Butyl Rubber
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.
0.75 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.
0.75 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.
1.45 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.
1.45 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.
7-11/16"
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.
11-1/8"
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.
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
100%
4 Star
0%
3 Star
0%
2 Star
0%
1 Star
0%

Average Attribution Rating

Durability
4.7
Value
5.0
Features
5.0
Design
4.7
Usability
5.0

yngbird

Dumfries, V.A

Overall
Durability
Value
Features
Design
Usability

nice

May 10, 2014

Speaker works for me, my music range varies and this speaker accommodates all

0 of 0 found this helpful

Help our customers find the most helpful reviews

Charles

sandy, UT

Overall
Durability
Value
Features
Design
Usability

Sooo much bass!!!

April 1, 2013

I have 2 of these in my car and they just destroy with sound! They shake everyone around me. Such deep bass it's an earthquake machine

0 of 0 found this helpful

Help our customers find the most helpful reviews

Quinn

Salt Lake City, UT

Overall
Durability
Value
Features
Design
Usability

Great sub

June 20, 2012

This sub arrived quickly and in perfect condition. It sounds awesome and I feel like I got a great deal on it. I'll definitely shop with Sonic Electronix again. My audiophile ears can't pick out any real faults with this thing. It even looks awesome!

0 of 0 found this helpful

Help our customers find the most helpful reviews

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1 MTX Audio T812-44 Subwoofer

Mono Amp

2 Channel Amp - Bridged

2 MTX Audio T812-44 Subwoofers

Mono Amp

Mono Amp - Option 1

2 Channel Amp

2 Channel Amp - Bridged

4 Channel Amp - Bridged

3 MTX Audio T812-44 Subwoofers

Mono Amp

4 Channel Amp

4 MTX Audio T812-44 Subwoofers

Mono Amp

2 Channel Amp

2 Channel Amp - Bridged

4 Channel Amp

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Product Summary

Manufacturer

Model Number

T812-44

UPC

715442390168

Weight

22.00lbs

Internal SKU

t81244

Internal Product ID

32943

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 T812-44