Types of Woofers

Coaxial speakers in automobiles are 2- or 3-way loudspeakers in which the tweeter, or the tweeter and a mid-range driver, are mounted in front of the woofer, partially obscuring it. The advantage of this design is the ability to use a smaller area, hence their popularity in car audio.

In most full-range speakers, the midrange driver is cone-shaped and made of paper. Bass Drivers Also known as woofers, bass drivers reproduce the lowest frequencies in the audio spectrum.

The horn allows the mechanical power capabilities of the source to be tapped much more efficiently. In the case of a horn-loaded speakers, neither the electromechanical efficiency nor the power capability of the speaker itself is changed, but the transfer of mechanical to acoustical energy is greatly increased.

The radiating diaphragm of a cone mid-range unit is a truncated cone, with a voice coil attached at the neck, along with the spider portion of the suspension, and with the cone surround at the wide end. Cone mid-range drivers typically resemble small woofers.

A subwoofer (or sub) is a woofer, or a complete loudspeaker, which is dedicated to the reproduction of low-pitched audio frequencies known as bass and sub-bass. The typical frequency range for a subwoofer is about 20–200 Hz for consumer products, below 100 Hz for professional live sound, and below 80 Hz in THX-approved systems.

A tweeter is the type of speaker driver that produces the highest range frequency. The other two main drivers are woofers and midrange. Basically, a driver moves a flexible cone, or diaphragm, back and forth very quickly to produce sound waves.

Woofers, mid woofers, subwoofers, and rotary subwoofers are available from both online and brick-and-mortar electronics stores, as well as specialist audio and music stores. eBay features an extensive range of low-pitch speakers, including woofers and subwoofers.