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MTX Thunder65

Thunder Dome Series 6-1/2" 2-way speakers

Item #: 236THND65

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9 Reviews | Ask Questions

Installation gear for most cars

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Speakers for the real world

MTX doesn't make speakers that only deliver the goods in a sound lab. These affordable 2-way speakers feature a 6-1/2” durable polypropylene cone with a rubber surround that'll shrug off the weather and wear that come with living in your car full-time. Depending how low you need to mount the coaxials, you can swivel the soft dome tweeters up to 15 degrees in your direction to really dial in the stereo imaging.

While no car speaker can produce bass like a large subwoofer, these speakers truly shine in the lower frequencies. With up to 60 watts RMS of power handling, you can add to their impressive depth and richness when you power them with an outboard amplifier. MTX includes black metal mesh grilles in plastic frames for custom installations, and the unique prorated 5-year warranty really makes these Thunder65 speakers a smart buy.


  • 2-way car speakers (pair)
  • 6-1/2" polypropylene cone with rubber surround
  • 1" pivoting silk dome tweeter
  • power range: 2-60 watts RMS (120 watts peak power)
  • frequency response: 48-20,000 Hz
  • sensitivity: 92 dB
  • impedance: 4 ohms
  • top-mount depth: 1-7/8"
  • grilles included
  • warranty: 5 years (free repair or replacement for 2 years, prorated replacement for years 3 through 5)
  • Our 60-day money-back guarantee

Why replace your car's original speakers?

The speakers that originally came in your car were made from inexpensive materials, designed to create acceptable sound at the lowest possible cost to the manufacturer. If you love music, you deserve better. Name-brand aftermarket speakers deliver fuller, richer sound with considerably more detail and nuance, and they're capable of playing louder and cleaner than factory speakers. Connect new speakers to your factory radio and you'll get the best possible sound from your dealer-equipped system. Pair them up with a new car stereo for a level of enjoyment that can rival a high-fidelity home audio experience.

MTX Thunder65 Reviews

Average Customer Review:

9 Reviews

Great upgrade to stock GMC speakers.

Written by: JasonB from Maine on December 30, 2015

2011 GMC Sierra
Crutchfield Customer Review (What's this?)

These speakers made a very noticeable difference once installed. Added a lot of clarity to the music. I think they have just enough bass to bring the music to life while letting the highs come through as well. I would definitely suggest these to anyone looking to upgrade the stock speakers in a GMC Sierra extended cab.

Pros: Better bass Clear sound Sound better at higher volume

Cons: None

Thunder65 what

Written by: DH451 from Tennessee on October 5, 2015

2015 Toyota Tacoma
Crutchfield Customer Review (What's this?)

fantastic high and mid range speakers, no bass from a standard wattage OEM type radio like what is in a Toyota 2015 Tacoma double cab. installed in rear doors

Pros: great highs and mid-range

Cons: no bass

Great Upgrade

Written by: Brad M from Newburgh, Indiana on May 25, 2015

2000 Nissan Frontier
Crutchfield Customer Review (What's this?)

These speakers are a good upgrade from the 15 year old stock speakers that I removed from my 00 Nissan Frontier. I am not super impressed with the way the power is being handled but I think they just need an amp running to them. My head unit is only putting out about 14 watts per speaker and these can handle much more so I think that after I amplify these I will be way more impressed.

Pros: Good stock upgrade

Cons: Probably needs an amplifier

Good speakers

Written by: Brett from Tulsa, OK on December 29, 2014

2009 Hyundai Elantra
Crutchfield Customer Review (What's this?)

These are an improvement over the factory speakers. Especially in the mid and upper range. I installed in one door, and then faded between the factory and the MTX and the MTX was much clearer. 2009 Hyundai Elantra. The factory was just a paper cone. Brackets supplied were helpful for the installation, but do not try to reuse holes. I made two new holes with speed nuts, and just used two self tappers for the four holding points. Would have been easier to just use self tappers for all 4 places.

Pros: Improvement over factory.

Cons: I would probably go with components next time. The position in the door is just so low, that it is hard for the tweeters to get the sound up to your ears. I also lost some bass compared to factory speakers. But what is there is tighter. I will be adding a small amp, and that may help the bass.

Good upgrade

Written by: Mike R from Pennsylvania on December 28, 2014

2008 Saturn Outlook
Crutchfield Customer Review (What's this?)

Good upgrade over factory paper speakers. These have nice highs and okay bass, I think these would come to life if they werent connected to a factory radio thats under powered and connected with sub-par wire. I was just going for a speaker upgrade becase all four of the factory speakers went bad. They were recommend by the advisor and met my expectations. If you going for ear blowing sound from a factory unit you better get an amp to drive these

Pros: Large magnets, poly cones, strong frame, Price, highs

Cons: Terminals too close to the magnet/frame, wire harness too thin


Written by: TRUKKER from TUCSON AZ on August 18, 2014

Crutchfield Customer Review (What's this?)




Good bass

Written by: Soso from NJ, USA on July 6, 2014

Crutchfield Customer Review (What's this?)

Speaker sound is good for its price point. The tweeter sound are clear with no harshness. I have these on a 3/4 inch MDF baffle on each of my 4 doors. I've sprayed some adhesive on some insulation padding I picked up from my local home depot. I then affixed them behind the speaker and inside the door. Caulking around the baffle and speaker also helps in separating sound waves which can distort sound integrity. I've applied sound dampening sheets to seal any openings. Another trick to getting the most out of a speaker is to glue a foam strip on the inside of the door panel opening for the speaker. All this work has improved the acoustical sound coming from this speaker. This can be done for any speaker. I recommend this speaker for its price and performance. The bass effect I'm getting is impressive and a complete upgrade from stock setup. They're powered by a Alpine KTP445U digital amp.

Pros: Good price for its performance

Cons: Sound is impressive. Can't think of any cons


Written by: Steve from Winston Salem, NC on May 14, 2014

2006 Honda Accord EX
Crutchfield Customer Review (What's this?)

Awesome speakers! Had to go to best buy for brackets, but they definitely deliver all the lows missing from 5.25's!



MTX Thunder65

Written by: Scott O from Louisville, KY on April 2, 2014

2006 Pontiac Vibe
Crutchfield Customer Review (What's this?)

These speakers are great for just a speaker upgrade for my 2006 Pontiac Vibe. I now can listen to my factory radio all the way up with little to no distortion. They also don't sound bad at a low volume. I had them all the way down and they still sounded clear. I am very proud of them so far and they haven't even broken in yet. I just got done installing them about an hour ago. Crutchfield made the install really easy. I had to drill new holes in my door for the mount but they gave me the instructions to install them the right adapter for the factory plugs and a good bracket. I am planning on getting another pair for my rear doors soon once I have the money to spend.

Pros: Good clear sound with little to no distortion at all volume levels with a factory system. Good materials. A 5 year warranty come on.

Cons: None to report.

Hands-on research

What's in the box?

Download owner's manual

  • Two 2-way speakers
  • 2 Metal mounting brackets
  • 2 Grilles
  • Two 6" Lengths of speaker wire (each has female quick-slides on one end and bare wire on the other)
  • Eight M3x4mm Machine screws
  • Eight 1" Self-tapping screws
  • 8 Speed clips
  • Cardboard template
  • Specifications printed on box

Features and Specs

Design 2-way
Tweeter Design 1" Dome
Tweeter Composition Silk
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 48 - 20k Hz
RMS Power Range (Watts) 2-60
Peak Power Handling (Watts) 120
Impedance (Ohms) 4
Top-mount Depth (Inches) 1 7/8
Bottom-mount Depth (Inches) N/A
Cutout Diameter or Length (inches) 5 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 1" treated silk dome tweeter. Silk is lightweight and great for high frequency extension and efficiency. The tweeters pivot slightly within their housings (approximately 15° in any direction), so they can be angled toward the listeners to improve imaging.

Mounting: MTX calls the Thunder65 a 6-1/2, and without using the included woofer mounting bracket, it fits into most 6-3/4 and 6-1/2 openings, but the bolt pattern matches a standard 6-3/4 speaker. To fit the standard 3-hole and 4-hole 6-1/2 applications, the included bracket must be used, resulting in the measurements used to sort what vehicles it will fit. If mounted without the bracket the depth is 2.056" and the mounting height is 0.636". In most 6-1/2 applications, when mounted without the bracket, new screw holes must be drilled.

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