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MTX Audio TDX40

4" 2-Way Thunder Dome-Axial Series Coaxial Car Audio Speakers

Discontinued
|

Good news and a little bad...

This item has been discontinued

But you may be interested in the newest model that's available.

thunder40 thumbnail

MTX THUNDER40

OUR PRICE: $69.95

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Bundled Savings with this Product

=

Get 25% off Sound Dampening Speaker Kit with Purchase!

For a limited time, get 25% off of the NVX SDSK2 Speaker Kit with a qualifying pair of speakers! Sound dampening will eliminate rattles, insulate against heat, and also improve the sound and output of your speakers!

3.75

26670

100

MTX Audio TDX40

$49.95

+

25% OFF

NVX SDSK2

$14.99

Special Price $11.24 ($14.99 if purchased separately)

NVX SDSK2

• Eliminates Road Noise
• Quiets Vibrations
• Stops Annoying Rattles
• Increases SPL
• Reduces Heat
• Simple To Install
• Peel and Stick Installation
• Two 10" x 10" Pieces

(Offer 1 of 1)

Combined Total Price

$61.19

You Save $3.75

Authorized MTX 

Dealer
  • 4" Thunder Dome-Axial Series 2-Way Coaxial Car Speakers
  • Power Handling:
    • Peak: 140 watts per pair / 70 watts each
    • RMS: 70 watts per pair / 35 watts each
  • Polypropylene midwoofer cone material
  • Rubber midwoofer surround type
  • 20mm Soft dome tweeter
  • Extended low frequency reproduction for bigger, fuller sound
  • Concave cone design for improved offaxis response
  • 4 ohms impedance
  • Top-mount depth: 1-3/4"
  • Authorized Internet Dealer
  • 1-year Manufacturer's warranty

Priced Per Pair

Product History:

MTX THUNDER40 thumbnail
(newest, current model)
MTX TDX40 thumbnail
(previous model, replaced by MTX THUNDER40)
MTX TDX4002 thumbnail
(previous model, replaced by MTX Audio TDX40)

Speaker Specifications

Series
This is the manufacturer product line of speakers.
Thunder-Dome Axial (MTX)
Priced Per
Car Speakers are typically sold in pairs so you will receive 2 speakers for each speaker purchase on speakers marked "Priced Per Pair". If a speaker is marked "Priced Per Each" then the speaker is sold individually and each purchase you make will result in 1 speaker. High-powered tweeters, midrange and full-range pro audio for car speakers are typically sold per each speaker.
Pair
Speaker Size
Refers to the size of the speaker measured in inches. Every vehicle has standard application sizes. Please use our vehicle fitment guide for your vehicle's specific speaker sizes if you do not know them.
4"
Design
The number of individual drivers in a car speaker. Speakers with 2 drivers are known as a 2-way, and 3 drivers are known as a 3-way. Component systems are often referred to as "separates" because the tweeter is not attached to the midwoofer (main speaker driver) and mounts separately in a location such as a door post. Component systems typically come with an external crossover so you can easily adjust the high and low frequencies sent to both the midwoofer and the tweeter. Center channel speakers are great for those looking to have surround sound in their vehicle.
2-way
Tweeter Design
Designs such as cone, dome, semi-dome, balanced dome, and whizzer are most popular. Cone tweeters are simple, efficient and typically are the most reasonably priced. Dome tweeters are used in most home speakers, and provide a smoother and more accurate sound. Semi-dome design is one with a dome placed inside a cone. A Balanced dome driver is a semi-dome with equal reproduction area given the cone and dome portions of the driver. A whizzer tweeter is a separate tweeter cone driven by the voice coil of the woofer.
Dome
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.
Polypropylene
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.
Rubber
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.
70 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.
35 watts
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 dB
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).
75 - 20,000 Hz
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
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
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.
1-3/4"
Cutout Dimensions
Refers to the dimensions of the hole, measured in inches or millimeters, required to contain the speaker.
3-3/4 x 3-3/4 
Speaker Grilles
A grating or screen of metal or plastic bars or wires, mounted in front of a speaker as protection. If yes, the speakers will include matching speaker grilles. If no, there are no grilles included.
No

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
50%
4 Star
25%
3 Star
25%
2 Star
0%
1 Star
0%

Average Attribution Rating

Durability
4.0
Value
4.3
Features
4.3
Design
4.5
Usability
4.5

Will

Bryan, Ohio

Overall
Durability
Value
Features
Design
Usability

Before you buy, know this

October 7, 2013

This speaker has an awesome sound, but of course it does, 4 ohms. It looks very appealing, and has an easy installation. BUT if you plan on running more than 15 RMS to it, I'd be careful. Even after being broke in, this speaker seems to blow very easily. I'd recommend this, IF you don't listen to loud music. If you want a decent system to show off, and are looking for a replacement dash speaker, I WOULDN'T recommend this speaker. It cannot take the abuse, even when you run next-to-nothing power to it.

0 of 0 found this helpful

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KOTR

Columbus, GA

Overall
Durability
Value
Features
Design
Usability

great value!

August 22, 2013

I knew going in that I wouldn't be disappointed and I was right. These little suckers pump!! I put them on my BMW K1600 GTL and they are louder and clearer than the stock speakers. Having owned a MTX Blue Thunder bandpass enclosure, a 10" Black Gold sealed enclosure and currently using a dual 10" 100 watt Thunderform box in my 1998 Dodge Dakota, I know the benefits of MTX products. Big or small, their products rock!!

0 of 0 found this helpful

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PHILIP

CHURCHS FERRY, ND

Overall
Durability
Value
Features
Design
Usability

mtx

December 30, 2011

Loudest 4 ohm speaker, very clean classic mtx.

0 of 0 found this helpful

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Chum G

slc ut

Overall
Durability
Value
Features
Design
Usability

great product

October 31, 2010

Ordered these a week ago got them right on time and got them for a really good deal they sound great with out an amp and just hooked them up to one and now there amazing as I expected from MTX I highly recomend these to any who want a loud and clear 4 inch speaker

0 of 0 found this helpful

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Accessory Tools and Products

Accessories added

Streetwires 50 ft. of True Spec 16 Gauge Speaker Wire

You need speaker wire to connect your speakers!

Your Price $29.99

Belva 23 ft. of True Spec 16 Gauge Speaker Wire

100% Copper Clad Aluminum, PVC blended jacket for easy installation and high strand count for maximum audio quality

Your Price $12.99

16-14 AWG Butt Connectors

These blue butt connectors are ideal when connecting thicker speaker wire your new aftermarket speakers!

Your Price $4.99

16-14 AWG Blue T-Tap Adapters

Allows for fast and easy splicing of wires by easily tapping into the cable.

Your Price $4.49

16-14 AWG Quick Disconnect Connectors

These blue quick disconnect connectors make it easy to connect and disconnect speaker wire your to your new aftermarket speakers!

Your Price $7.99

NVX SDSK2 Speaker Kit

Eliminates speaker panel distortion and reduces vibration, rattles, and squeaks!

Your Price $14.99

Dynamat Xtreme Speaker Kit 10415

Enough sound dampening for 2 speakers!

Your Price $17.95

Stinger Roadkill Speaker Kit

Use this to eliminate rattle from your speakers!

Your Price $13.99

Car Stereo and Speaker Installation Tool Kit

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

Your Price $12.99

Universal Wire Puller & Grabber

Running wires has never been easier! This wire puller allows you to run wires through those hard to reach places!

Your Price $6.99

Xscorpion WDCR2 Window and Door Clip Remover

Removes and installs handle and window crank clips.

Your Price $6.99

3 in 1 Wire Quick Splice T-Tap and Butt Connector Crimper + Wire Cutter

Used for cutting copper and aluminum wires up to 8 gauge.

Your Price $21.99

NVX SDRLR1 Sound Dampening Rubber Roller

Install your Sound Dampening with ease! This heavy duty rubber roller is designed specifically to install your NVX products!

Your Price $7.99

3/4" Depth Extender for 4" Speakers

Add 3/4" of extra space when installing your speakers.

Your Price $6.99

XTC 4" Round Foam Speaker Baffles

Creates a tight, acoustic seal behind the speaker to enhance the sound quality.

Your Price $8.99

4" x 6" to 4" Speaker Adapters

Perfect fit for 4" speakers!

Your Price $7.99

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• Peak Power: 240W
• RMS Power: 60W
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• Peak Power: 300W
• RMS Power: 100W
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• Mounting Depth: 1-13/16"
• Polypropylene Woofer Cone
• 4 Ohms Impedance
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Product Summary

Manufacturer

Model Number

TDX40

UPC

715442171002

Weight

4.00lbs

Internal SKU

tdx40

Internal Product ID

26670

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 TDX40

  • MTX Thunder-Dome Series Coaxial Car Speakers
  • Sonic Electronix: The X Factor when Shopping Electronics