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MTX Thunder35

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

27 Reviews | 1 question - 1 answer

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Item # 236THND35

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825 Gardens Blvd

109 South Carlton

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Our take on the MTX Thunder35

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.

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 2-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: 2 years
  • Our 60-day money-back guarantee

What's in the Box:

  • 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

Crutchfield products are always reliable, and make it super easy for even a novice to be a tech geek.

Anonymous, Vassalboro, ME


MTX Thunder35 Reviews

Average Customer Review(s):

(27 Reviews)

MTX Thunder35

Anonymous from Vassalboro, ME on 12/13/2017

2006 Chrysler PT Cruiser
Crutchfield Customer Review (What's this?)

Crutchfield products are always reliable, and make it super easy for even a novice to be a tech geek.



Much louder and clearer than OEM factory dash speakers

John from Framingham, MA on 12/8/2017

2017 Subaru Impreza
Crutchfield Customer Review (What's this?)

A very good speaker for the money, much louder and clearer than the OEM factory dash speakers.

Pros: Good high's and mid's Overall a GOOD speaker for the money and I would recommend it.

Cons: Mid's seem slightly stronger than the high's

MTX Thunder35

Anonymous from Ft Atkinson, WI on 10/1/2017

Crutchfield Customer Review (What's this?)

These tweeters are well made. I bought them to add into the rear pillars of my suburban. They have helped to make a fuller sound. Do dot expect high sound power. But they deliver clean crisp high frequency balance. To make them fit my truck I had to trim plastic taps and and make a larger diameter opening in the black speaker supports that are behind the speaker grille in the OEM trim. Attached with small screws and washers. Whole job took less than 1 hr with wiring adapters I purchased at the same time. Good value product. Definitely improved the sound in my truck. A great compliment to the powered subwoofer I added last year. I should have done these when I did the subwoofer.



Smart choice

MARK from Plainfield, il on 7/10/2017

2017 Ram 1500
Crutchfield Customer Review (What's this?)

These speakers added so much more depth to stock system and I am glad I made the switch.


Cons: NONE

Max thunders Good. But....ram 1500

Scott from Pittsburgh on 7/6/2017

2015 Ram 1500
Crutchfield Customer Review (What's this?)

I just bought 2 to replace the two units not all three on the top dash. If I didn't have to buy 2 more I would replace that as well. I was used to component system and I think I want to go back to that. I don't know how much its speaker vs head unit. I have an audiofile friend that is suggesting an amp that bypasses the head unit to create better sound.

Pros: They are solid and well built, compared to the flimsy units I pulled out. Good solid sound. Some decent deeps and ok mid tones. But it's all subjective right. I just replaced the two units not all three on the top dash. If I didn't have to buy 2 more I would replace that as well.

Cons: No to many other than not being able to buy single unit.

MTX Thunder35

Steven from New York on 6/26/2017

2007 Dodge Ram 3500
Crutchfield Customer Review (What's this?)

Excellent sound quality, great bargain



MTX Thunder35

Anonymous from Spokane, WA on 5/30/2017

1986 Ford Mustang
Crutchfield Customer Review (What's this?)

Good fit and sound

Pros: Nice heavy magnet

Cons: Comes with short wires so you have to splice into the factory wires or run and splice like i did.

Speaker Review

Mac from Thorndale PA on 5/13/2017

2017 Ram 2500
Crutchfield Customer Review (What's this?)

These speakers are awesome !! The clarity and bass you get from the 3.5" speakers is unbelievable. I highly recommend buying a pair!!!!

Pros: Clarity and bass

Cons: None


Ken from Grand Marsh, WI on 4/25/2017

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

I purchased the MTX Thunder 35 to replace my factory dash speakers in my 2013 Ram. These were very easy to replace with the included wiring harness and Crutchfield's custom instructions. Overall the sound improvement was brilliant. Both the midrange and highs are full, clean, and crisp.

Pros: Great sound, quality speakers

Cons: None - should have purchased sooner

MTX Thunder35

Gary from Richmond, VA on 4/18/2017

2016 Ram 1500
Crutchfield Customer Review (What's this?)

Bought a 2016 Ram 1500 last year with the top 0f the line Alpine system. I had already suffered through the sound of this same 10 speaker system in a 2013 Durango. Realizing that most of the "horribleness" emanated from the dash speakers, and knowing I couldn't possibly suffer through this sound for another 1-3 years, I started looking for dash corner replacements, I was reluctant to "tear up" my dash but Crutchfield's written directions quickly gave me confidence. I still did not have enough confidence to disconnect and replace the center dash speaker (much less clearance to work in), but I popped the grille on it and inserted 2-layers of felt over that speaker because its high efficiency and poor sound let it overpower the corner speakers. The MTX Thunders GREATLY improved the sound especially in the midrange and treble parts of the sound spectrum. One big surprise is that, despite their small size, they also CLARIFIED THE BASS, which other reviewers have not mentioned. Their lower efficiency, hence lower volume, was easily compensated for by using the balance/level controls.

Pros: Great sound improvement over factory dash speakers. Installation was quite easier than I anticipated (thanks Crutchfield) and these are an exact fit.

Cons: Price (but I don't know if the cheaper speakers would have equivalent sound). Only available in pairs so even if I had the confidence to replace the dash single center speaker, I would have had to buy a pair.

MTX Thunder35

Markel from Southaven Mississippi on 4/11/2017

2006 Chrysler PT Cruiser
Crutchfield Customer Review (What's this?)

Good full range Fidelity sound.

Pros: Made for longevity

Cons: Heavy duty good Quality

Nice little gems

Jeffrey from WI on 2/3/2017

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

Straight forward installation. Great sounding, high quality factory replacement speakers.

Pros: High quality, great sounding.

Cons: None

2016 ram 2500

Anonymous from Meridian, ID on 9/25/2016

2016 Ram 2500
Crutchfield Customer Review (What's this?)

Great little speaker huge difference in sound quality from factory, installation took maybe 5 minutes and I was up and running again. Crutchfield as always offers great products for a fair price and of course customer service is top notch!

Pros: Easy install, quality sound at all levals

Cons: None

You can't go wrong with these

Tony from Chicago, IL on 8/1/2016

2003 Dodge Ram 1500
Crutchfield Customer Review (What's this?)

WOW!!! What more can I say about these speakers. All the reviews were right. They ROCK!!! I installed them in the dash to replace the factory ones that have been in there. You read the reviews and wonder if just replacing these little speakers would make that much of a diffrence, they did!!! They sound great vs. the factory units and gave me the high's that I was missing. You can't go wrong adding these to your set up.

Pros: Sound Fantastic for the price. Great addition to add to your stock head unit or an upgraded version of it. Installed very quick and easy.

Cons: Can't think of any.

Great dash speakers for RAM Pickup

Christopher from Tampa, FL on 7/25/2016

2004 Dodge Ram 2500
Crutchfield Customer Review (What's this?)

Crystal clear, loud, full sound, and PERFECT FIT (for 04 Ram 2500)! Love these little speakers for the front dash to replace the factory Infinity system.

Pros: Full Sound and Great Fit!


Great speakers!

Don P. from Surprise, AZ on 7/4/2016

2008 Dodge Ram 1500
Crutchfield Customer Review (What's this?)

Great sounding speakers, installed very easily in my 2008 Dodge Ram 1500

Pros: Easily installed in dash corners of 2008 Dodge Ram 1500


Mtx 3.5

Reggie H from Warrior, AL on 5/11/2016

2004 Dodge Ram 3500
Crutchfield Customer Review (What's this?)

I have the infinity factory system in 2004 Dodge 3500 wanted a change and installed the MTX 3.5 in dash and these little jewels are loud and clear the highs are awsome. Much louder than the factor infinity. Getting a set for my 85 chevy c-10.

Pros: Easy install thanks to instructions from crutchfield.

Cons: None

Terrific sound from a small package

TampawithDave from Tampabay on 3/30/2016

1994 Volvo 850
Crutchfield Customer Review (What's this?)

Replaced the factory dash top speakers and the resuts are outstanding. Fit beautifully

Pros: perfect size, terrific sound

Cons: None

MTX THunder 35 Review

Scott from New Jersey on 8/29/2015

2014 Ram 1500
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!


Ryno from Fremont, Ohio on 7/11/2015

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

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



Mtx should you buy?

Mtx should you buy? from Ofallon Missouri on 6/12/2015

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!

Joe from Georgia on 6/2/2015

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.


deer from new braunfels, tx on 4/9/2015

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


Kasra from California on 12/9/2014

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

Kevin K from Fox Lake, WI on 9/7/2014

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

Jim from Arizona on 8/5/2014

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

Brad S. from Diamond Bar, CA on 4/17/2014

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

Features and Specs

Speaker Size 3 1/2
Design 2-way
Tweeter Design 20mm Dome
Impedance (Ohms) 4
Tweeter Composition PEI
Woofer Composition Polypropylene
Woofer Surround Rubber
Parts Warranty 2 Years
Labor Warranty 2 Years
Sensitivity (1W at 1 meter) N/A
Sensitivity at 2.83 volts 92
Frequency Response 83 - 20k Hz
Minimum RMS Wattage 2
Maximum RMS Wattage 25
Peak Power Handling (Watts) 50
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.

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.

Q & A

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