Best 12 Subwoofer

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Car Subwoofers – How Do They Work?

Posted on | December 11, 2009 | No Comments

Car Subwoofers are widely used by car owners and fans. However, a lot of staff don’t know what a subwoofers are and what do they do? Car Subwoofers are loudspeakers intended to create the lowest frequencies, or bass border of the perceptible by the ear sound range. Car Subwoofers range from 4″ in diameter all the way up to 36″ meant for extremely specialized scientific purposes. For the greater number of consumer purposes however, sizes are pretty much consistent at 4, 5, 6, 6.5, 8, 10, 12, 15, and 18 inches, with the 6.5 to 12 inch sizes being the most used.

Because car subwoofers are specialized reproducers, their design maximizes their capability for generating the lowest frequency. Therefore they will have cones that are balanced in such a way as to promote the most back and forth motion, called XMAX. Middle frequencies have smaller cones and less excursion, or cone travel. Tweeters have cones, domes, or diaphragms that may seem almost motionless. Even so, they can deliver sound in their frequency range that is just as strong as their larger siblings.

Car Subwoofer cones must move in and out with the longest possible extension since sound waves get longer as they get depress in frequency. Current technology provides us with firm cone materials like Polypropylene, Carbon and Polymer Laminates that conserve their shape under stress, resist moisture, and are very light. The cone works as a piston to compress and alternatively clear immense masses of air. To do this most effectively, the subwoofer must be connected to an amplifier that produces the high amplitude waveforms that can create this motion. Because such signals demand substantial electrical power behind them to control the cone movement, the highest power available is needed strictly for bass generation.

Most car subwoofers are housed in a box (enclosures) to achieve their maximum audio power.

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