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MTX Audio TDX693

6" x 9" 3-Way Thunder Dome-Axial Series Coaxial Car Audio Speakers


Good news and a little bad...

This item has been discontinued

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

thunder693 thumbnail


OUR PRICE: $149.95

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General Features

  • 6" x 9" TDX Thunder Dome-Axial 2-Way Car Speakers
  • Power Handling:
    • Peak: 400 watts per pair / 200 watts each
    • RMS: 200 watts per pair / 100 watts each
  • Polyprolylene cone woofer
  • Rubber surround
  • 1" (25mm) and 3/4" (20mm) Soft dome tweeter
  • Engineered with an extended low frequency reproduction for bigger, fuller sound
  • Concave cone design for improved off-axis response no matter where the speaker is mounted
  • Pivoting tweeter moves 15° in any direction for improved imaging, no matter where the installation location is
  • 4 ohms impedance
  • High temperature voice coil
  • Frequency Response: 42-20,000 Hz
  • Top-mount depth: 3"
  • Volume displacement: 2.24 cubic inches
  • Authorized Internet Dealer
  • 1-year Manufacturer's warranty

Priced Per Pair

Product History:

MTX THUNDER693 thumbnail
(newest, current model)
MTX TDX693 thumbnail
(previous model, replaced by MTX THUNDER693)
MTX TDX6903 thumbnail
(previous model, replaced by MTX Audio TDX693)

Speaker Specifications

This is the manufacturer product line of speakers.
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.
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.
6" x 9"
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.
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.
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.
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.
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.
200 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.
100 watts
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).
42 - 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.

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.
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.
Number of Speakers
This is the number of speaker that is included in the package. Each purchase will result in receiving the number of speakers indicated here. Please note that some items will have multiple woofers in the same enclosure. For sets of component speakers, this number will refer to the number of sets of speakers (For example, 2 would indicate the purchase includes 2 woofers and 2 tweeters).

Please refer to the product image and description for further details about the speaker.

Warranty and Return Policy

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

Summary of Customer Ratings & Reviews

Rating Distribution

5 Star
4 Star
3 Star
2 Star
1 Star

Average Attribution Rating


Seymour, WI

Worth it

June 20, 2012

I've owned these speakers for about 6-9 months now and all i have to say is well worth the buy. Excellent bass and sound quality, even with my stock head unit in my 2000 Monte Carlo SS. My friends ask me if I put subs in my car and I just tell them they're just my speakers. I'd have to say it has better crisp sounding bass than some of my friends sub-woofers.

12 of 17 found this helpful

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April 11, 2013

I installed these in my 2012 Avenger front doors and they sound great, and they are only hooked up to the HU. I decided to buy a pair of kicker ds693 for the rear deck based on reviews and i was able to get them cheaper where i live. Let me just say WOW!, there is no comparison between the mtx and the kicker's. The MTX speakers blow them away. I kept fading from front to back and was amazed at how much better the MTX sound and had quite a bit more thump in the bass too. So took back the kickers and ordered another pair of MTX...

7 of 10 found this helpful

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Brown Deer, WI

Great Value

October 7, 2013

Great product for the money. Excellent sound with good quality.

5 of 7 found this helpful

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Lihue, HI

Great Sound! Solid Design!!

July 5, 2012

The MTX Audio TDX693 6x9 is a well built speaker.. It has a nice sound..It's not as bright sounding as the Infinity Kappa..Well balanced.. I have it hooked up to my Alpine deck right now, and I know this would sound way better if I add an amp..And buying it from SonicElectronix is so fast and easy!! Thank You!!

5 of 8 found this helpful

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mtx speakers


awesome speakers

March 7, 2012

Just got them installed today. They sound great, even with the normal CD player. They have amazing bass awesome mids and above average highs. We turned the fade more to the back of the car and turned the bass up a little, the mirrors were shaking. It sounds like you have a small subwoofer in your car with these. I cant wait to get the new cd player and see what they sound like with more watts running through them. i would highly recommend these speakers. They are a little more expensive but they sound even better than the Polk system we have in our tahoe, which was twice as much.

2 of 4 found this helpful

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Salisbury, NC

worth the money

February 17, 2011

these are some loud speakers. they sound good when left tured up. i haven't been let down by any of my mtx products

5 of 10 found this helpful

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Great speaker!

January 4, 2014

This is a great speaker. I can turn my volume all the way up with no distortion. Only one downside. The speaker connections are weak. I was hooking the wires up and the connector on the speaker bent up with ease. The speaker still works fine, but I found that to be a bad flaw.

5 of 11 found this helpful

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Venice fl


June 29, 2011

I bought this product for my girlfriends car and it sounds really great! And has a amazing amount of bass you would think that there were 8's or 10's somewhere in the car

3 of 7 found this helpful

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cleveland, OH


August 20, 2011

I put these in the rear for my charger. these are some great sounding speakers. bass hits, tweeters crisp and clear. very happy!

4 of 10 found this helpful

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Accessory Tools and Products

Accessories added

Streetwires 25 ft. of True Spec 12 Gauge Speaker Wire

You need speaker wire to connect your speakers!

Your Price $44.95

Belva 23 ft. of True Spec 12 Gauge Speaker Wire

100% Copper Clad Aluminum, high strand count with ultra-flexible PVC blended jacket for easy installation

Your Price $14.99

12-10 AWG Butt Connectors

These yellow butt connectors are ideal when connecting thicker speaker wire your new aftermarket speakers.

Your Price $6.99

12-10 AWG Yellow T-Tap Adapters

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

Your Price $4.49

12-10 AWG Quick Disconnect Connectors

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

Your Price $6.99

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 $16.99

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 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

Xscorpion WDCR2 Window and Door Clip Remover

Removes and installs handle and window crank clips.

Your Price $6.99

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

Xscorpion USP-69 6" x 9" Speaker Baffles

Enhance the sound of your speakers with these easy to install speaker baffles.

Your Price $5.99

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Product Summary


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Internal Product ID


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 TDX693