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MTX Thunder35

Thunder Dome Series 3-1/2" 2-way speakers

Item #: 236THND35

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9 Reviews | 1 question - 1 answer

Installation gear for most cars

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Thunder Dome Series

Speakers for the real world

MTX doesn't make speakers that only deliver the goods in a sound lab. These affordable MTX Thunder Dome Series Thunder35 3-1/2" coaxial speakers feature a durable polypropylene woofer cone and PEI tweeter that are built to sustain the weather and wear that come with living in your car full-time.

Built to handle up to 25 watts RMS, these speakers will outshine your old factory speakers by a long shot, and MTX backs that up with a prorated 5-year warranty. Grilles are not included — factory grilles are suitable for most installations.


  • 2-way car speakers (pair)
  • 3-1/2" polypropylene cone with rubber surround
  • 3/4" PEI tweeter
  • power range: 2-25 watts RMS (50 watts peak power)
  • frequency response: 83-20,000 Hz
  • sensitivity: 92 dB
  • impedance: 4 ohms
  • top-mount depth: 1-3/8"
  • grilles not included
  • warranty: 5 years (free repair or replacement for 2 years, prorated replacement for years 3 through 5)
  • Our 60-day money-back guarantee

MTX Thunder35 Reviews

Average Customer Review:

9 Reviews

MTX THunder 35 Review

Written by: Scott from New Jersey on August 29, 2015

Crutchfield Customer Review (What's this?)

Great sounding speaker replaced stock speakers in 2014 Ram 1500 Crew Cab such a big difference. Vocals sound so much better than stock speakers.

Pros: Easy o install fits great! Sound is excellent! Good price and as always comes with matching plug for your make and model of vehicle.

Cons: None!


Written by: Ryno from Fremont, Ohio on July 11, 2015

1989 Ford Mustang
Crutchfield Customer Review (What's this?)

Better than stock. Sounds great for still having stock radio.



Mtx should you buy?

Written by: Mtx should you buy? from Ofallon Missouri on June 12, 2015

Crutchfield Customer Review (What's this?)

They're not the best but they're not the worst, defenitelly get your money's worth out of them though. Not the greatest bass but if you looking for something that just works and cam at least muffle the sound of the road then this is what you want my friends.

Pros: Easy to install

Cons: None so far

Great Low Cost Upgrade!

Written by: Joe from Georgia on June 2, 2015

2012 Ram 1500
Crutchfield Customer Review (What's this?)

I have a 2012 Ram 1500 Tradesman HD, which is a regular cab pickup. The dash speakers that come with the system are 8 Ohm, and are wired to the 4 Ohm Door Speakers. The factory system is 2 Ohm Stable, so I looked at 4 Ohm speakers to replace the dash speakers.

After much searching, I came across these MTX speakers. The high sensitivity and large tweeter seemed perfect for what I was looking for. The installation was incredibly straightforward, and the included Crutchfield directions and adapters allowed me to upgrade the speakers within minutes. The results are great, as it brings my sound stage up to my actual ears. Highs are clear and crisp, and the midrange is much clearer than it was before. A simple 69 dollar upgrade completely transformed my ride.

Pros: High sensitivity, clear midrange. Very high quality build, with a long factory warranty. You'll spend much more to receive a similarly built 3.5" speaker.

Cons: None so far.


Written by: deer from new braunfels, tx on April 9, 2015

2003 Saab 9-3
Crutchfield Customer Review (What's this?)

These little speakers are a huge upgrade for my dash being powered off an apline cde-hd149bt. Amazingly crisp/clear highs. The only reason I chose these were because focal doesnt make a 3.5. Not dissapoonted at all.

Pros: amazing crisp clear highs, and affordable

Cons: none


Written by: Kasra from California on December 9, 2014

2014 Toyota Prius
Crutchfield Customer Review (What's this?)

Huge improvement after upgrade front dash speakers with these guys. I kept the factory radio and changed all speakers. out of all speakers (real door & front door), these are more noticeable improvement. I dont have an amp and it sounds super clear.



MTX Thunder 35

Written by: Kevin K from Fox Lake, WI on September 7, 2014

2005 Cadillac STS
Crutchfield Customer Review (What's this?)

This speaker really gives you a good bang for your buck. In the car audio world with all the wind and road noise factored in and even with the best sound insulation available I personally want a LOUD speaker. This speaker is extremely loud for what you pay for it. When you are cruising with the windows down you need some serious volume, period! This speaker is built tough and is amazingly loud and sounds great- especially for the price. I have been into car audio for 25 years and I know from experience that these are great little speakers for a great price.

Pros: -built tough, great sensitivity rating, loud, great value, good name

Cons: absolutely none

Great Speaker

Written by: Jim from Arizona on August 5, 2014

2014 Mazda 3
Crutchfield Customer Review (What's this?)

Installed these in the dash locations in a 2014 Mazda 3 I Touring with the non Bose system. Tight fit because of the magnet size but mounted with out ant issues. Speakers sound great and really bring in the mids and highs to the stock stereo.

Pros: Great sound and price.

Cons: None so far.

Great Speakers

Written by: Brad S. from Diamond Bar, CA on April 17, 2014

2013 Ram 1500
Crutchfield Customer Review (What's this?)

Excellent speakers, huge improvement over OME speakers. Very easy hook up using Metra 71-039C speaker wiring adapters. Installed in 2013 RAM 3500 mega cab.

Pros: Easy install

Cons: NA

Hands-on research

What's in the box?

Download owner's manual

  • Two 2-way speakers
  • Two 6" Lengths of speaker wire (each has female quick-slides on one end and bare wire on the other)
  • Cardboard template
  • Specifications printed on box

Features and Specs

Design 2-way
Tweeter Design 20mm Dome
Tweeter Composition PEI
Woofer Composition Polypropylene
Woofer Surround Rubber
Parts Warranty 5 Years (3-5 Prorated)
Labor Warranty 5 Years (3-5 Prorated)
Sensitivity 92 dB at 2.83 volts
Frequency Response 83 - 20k Hz
RMS Power Range (Watts) 2-25
Peak Power Handling (Watts) 50
Impedance (Ohms) 4
Top-mount Depth (Inches) 1 7/16
Bottom-mount Depth (Inches) N/A
Cutout Diameter or Length (inches) 3 1/16

Product Research


Woofer Cones: The MTX Thunder Series speakers feature durable and rigid polypropylene woofer cones. Polypropylene is also resistant to the moisture and temperature extremes found in automotive applications.

Tweeters: Each speaker features a 20mm PEI dome tweeter. PEI (Poly-Ether-Imide) is a polymer film that produces a wide soundstage for superior imaging.

Warranty: MTX offers a 5-Year Prorated Warranty with the following terms:

  • Years 1-2: Products found to be defective in materials or workmanship during the first two years will be, at Mitek's option, repaired or replaced by Mitek at no charge. The warranty period does not renew, but continues on from the original date of purchase.
  • Years 3-5: The purchase price of an item which becomes defective after the first two years and prior to the end of the warranty period will be prorated and credited toward the purchase of a new MTX product. The amount of proration is determined by dividing the original purchase price by the number of months in the warranty period (60), then multiplying the result by the number of months remaining in the warranty period.

Our Product Research Team

At Crutchfield, you'll get detailed, accurate information that's hard to find elsewhere. That's because we have our own in-house Product Research team. They verify what’s in the box, check the owner's manual, and record dimensions, features and specs. We stay on top of new products and technologies to help people make informed choices.

Customer Q&A

1 question already asked

For details on fit or installation please contact an Advisor by phone (1-800-324-9695) or online chat. They will be able to pull up your vehicle and give you the details on if this will fit and what you will need for an installation in your vehicle. [ Krissy  Oct 21, 2015 ]  Staff