4" bullet tweeter

Item #: 236RTX4BT

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3 Reviews

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Concert level highs
Are you looking to play your music loud? If so, you'll want to check out MTX's Road Thunder Extreme speakers, which use PA system technology to bring concert sound levels to your car. If it's time to take your highs to the next level, MTX designed the RTX4BT 4" tweeter with the same compression-horn design found in most concert PA systems, so it'll play at high volumes for extended periods without breaking a sweat. And thanks to its aluminum cone and titanium diaphragm, this incredibly rugged tweeter can handle up to 200 watts RMS. Its 8-ohm impedance means you can wire up two to a single amplifier channel for maximum high-frequency intensity.

Note: This package contains one tweeter. You'll need an external amplifier to drive this tweeter properly — an in-dash stereo won't have enough power.

Product Highlights:

  • 4" aluminum bullet tweeter with compression horn design
  • power range: 50-200 watts RMS (750 watts peak power)
  • frequency response: 2,700-22,300 Hz
  • sensitivity: 97 dB
  • top-mount depth: 2-1/10"
  • warranty: 1 year
  • Our 60-day money-back guarantee

MTX RTX4BT Reviews

Average Customer Review:

3 reviews
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No joke

Written By matt b, canfield ohio on Sunday, March 08, 2015

Crutchfield Customer Review (What's this?)

amazing tweets!!! im running them with the roadthunder 8s and the sound is something else!!! full freq response, quality built!!!!

Pros: they handle as much power as i can throw at them!!!

Cons: would rather have better terminals and i didnt like how the cap was soldered allready.....


Written By MRGRIZZLYbEAR, New Orleans, LA on Monday, November 18, 2013

Crutchfield Customer Review (What's this?)

I love it!!!! Im a big fan of horn tweeters. I now have 4 in my G35 and it is screaming! no one wants to even ride with me if my music is on. Thinking of going in some competition (smiles)


Written By Ramiro, Port Arthur Texas on Tuesday, July 31, 2012

Crutchfield Customer Review (What's this?)

Sound great!! Easy installment. Highly recommended! Plenty of potential, for the price you can't go wrong.

Hands-on research

What's in the box?

Download owner's manual

  • One 4" Tweeter

Product Research



Crossover: A capacitor is soldered to the positive terminal of the tweeter as a first order high-pass crossover. The crossover point using the capacitor is approximately 5 kHz. Optimally, the capacitor should be removed and an electronic crossover used.


5 Year Warranty Terms: This product carries 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.