Subwoofer Not Required
Designed to play more low frequencies than the other guys so you get great bass even without a dedicated subwoofer.
Shallow Mounting Depth
Greater install possibilities. Many models to choose from with depths as shallow as 1.5".
MTX Relaiability
Forty years of experience and skill in this classic speaker design.

Deep Bass
The Thunder Coaxials offer unbeatable performance for the price in their class. They provide outstanding low frequency reproduction, easy installation, and are great as factory replacements with or without an additional amplifier.
While no car speaker can produce bass like a subwoofer, these speakers truly shine in the lower frequencies. The THUNDER Series Coaxial offers it all. You will have incredibly clear response with the built-in tweeter, and plenty of Low THUNDER response from this speaker's Polypropylene cone. The rubber surround will shrug off the weather and wear that come with living in your car full-time.
Ready for an easy-to-install speaker with an awesome price? Then let the "THUNDER ROLL" with the THUNDER Coaxials.
No Subwoofer Required
The THUNDER Series speakers are designed to compliment any installation while delivering a full range sound experience for all types of music. In order to get the most out of your music and hear it as the artist performed it, you need speakers that can reproduce the full range of sound frequencies. The THUNDER Series offers the best full range sound reproduction of any speaker in their class with particular focus on low frequency reproduction, where THUNDER speakers play much lower than other models allowing you to listen to great bass even if you do not want to install a subwoofer.
The THUNDER40 is a 4" 2-way coaxial speaker pair that can handle up to 35-watts RMS power. THUNDER speakers are set apart from the "other guys" because of its ability to reproduce low frequencies that other speakers cannot reproduce. Even in systems that don't have subwoofers, the THUNDER40 provides excellent bass response for all kinds of music.