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MTX THUNDER40 (Open Box)

4" 2-Way Thunder Series Coaxial Car Speakers

MTX
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• Peak Power: 70W • RMS Power: 35W
• Concave Cone Design
• Mounting Depth: 1-3/4"
• Polypropylene Cone and Rubber surround

Learn more about the LS-thunder40-OB

We apologize

This item has been discontinued

Description


MTX brand icon

Authorized dealer

Item Condition - Open Box, Great:

This product works like new, is well-cared-for and in great condition. May show limited signs of wear or use and may be missing non-essential parts, accessories or original packaging.

MTX Audio Thunder Speakers

MTX THUNDER40 Thunder Series Speakers

The MTX Audio Thunder Series Speakers will improve any stock stereo. Providing a rich full range to your car audio system, you won't miss any part of the frequency spectrum when listening to your music. The midwoofer has an extended low frequency range that will give you great bass reproduction even without a subwoofer. The tweeter will give crisp and clear highs to your music. With over 40 years of audio experience, MTX Audio makes sure and knows how to create quality audio in their products, and the Thunder Series is no exception!

Extended Low Frequency Range


Of course adding a subwoofer to your system will give you fantastic bass reproduction in your system, but with the MTX midwoofer's extended low frequency range, you will have a great bass response even without a subwoofer. For increased quality be sure to couple the speakers with an amplifier and notice the low frequency even more!


Tweeters

With the swivel you can adjust the tweeters for imaging control. The tweeter will swivel up to 15°. The crisp highs will give your music the clarity it deserves.



General Features:

  • Item Condition: Like New, Open Box
  • 4" Thunder Series 2-Way Car Speakers
  • Power Handling:
    • Peak: 70W
    • RMS: 35W
  • Concave cone design
  • Polypropylene cone
  • Rubber surround
  • Extended low frequency reproduction for bigger, fuller sound
  • 4 ohm impedance
  • Frequency Response: 75-20,000 Hz
  • Top-mount Depth: 1-3/4"
  • Sensitivity: 92dB
  • Authorized Internet Dealer
  • 1-year Manufacturer's Warranty

Priced Per Pair

Product history:

MTX THUNDER40-OB thumbnail
(newest, current model)
MTX TDX40 thumbnail
(previous model, replaced by MTX THUNDER40 (Open Box))
MTX TDX4002 thumbnail
(previous model, replaced by MTX Audio TDX40)

This item is currently not eligible for our low price guarantee. This may be due to supply constraints, manufacturer restrictions, or another reason. We're always here to help you get the best price possible so give us a call or email today. Our experts will do their best to build the system that works for you within the rules.

Specifications & Details


Speaker Specifications
Series
Thunder Series
Priced Per
Pair
Speaker Size
4"
Design
2-way Coaxial
Woofer Composition
Polypropylene
Woofer Surround
Rubber
Peak Power Handling
70 watts
RMS Power Handling
35 watts
Sensitivity
92 dB
Frequency Response
75 - 20000 Hz
Impedance (Per Voice Coil)
4 ohm
Top-Mount Depth (Mounting Depth)
1.75"
General specifications
Speaker Grilles
No
Warranty and Return Policy
Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Manufacturer

Item Details


Manufacturer:

MTX

Model Number:

THUNDER40-OB

Weight:

3.80lbs

Internal SKU:

LS-thunder40-OB

Internal Product ID:

117185

Customer Ratings & Reviews


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Modern vehicles often require specific brackets, wiring harnesses, and mounting solutions. A fit guide ensures:

  • You see only parts engineered for your exact vehicle
  • You avoid incompatible radios, speakers, or wiring
  • Installation is smoother, faster, and frustration-free
  • You get the correct accessories the first time

Whether you're replacing a factory stereo or upgrading your entire audio system, the Fit Finder eliminates uncertainty.