For example: When the volume is turned up, you may experience too many mid and high frequencies with much lack of bass. Car subwoofers are the missing peice to play your music in perfect harmony. Your audio system should be a perfect storm, various factors come into play and need to be there (In this case: Midrange speakers, tweeters, amplifiers and subwoofers) in order to create the ultimate.

Different Kinds Of Subwoofers
There's several ways to add 10, 12 or 15 inch car subwoofers to your system, whether you want to buy them separately or in a combo deal.

Component subwoofers: Component car subwoofers are sold by themselves, individually. They will need to be housed in a subwoofer box and an additional amplifier will be needed.

Enclosed Subwoofers: If you're looking for a perfect match up, enclosed subwoofers are pre-installed in an enclosure designed for the subwoofer(s). They could house a single, a pair or a trio of car subwoofers. How many you want, to create as much bass needed, is up to you. Enclosed subwoofers will also need an additional amplifier.

Powered subwoofers: Powered subwoofers are not only pre-mounted in an enclosure designed for the subwoofer, but also have a built-in amplifier that matches the subwoofer's power handling. This type of set-up is the easiest to install. The components have been pre-selected, matched and combined together, perfectly.

Wanting The Loudest Subwoofers
Some 10 inch car subwoofers may play louder than 12 inch car subwoofers. The reason being is the specifications of the subwoofer itself:

Power rating: If you truly want a loud system, pay close attention to the RMS rating of the subwoofer. The RMS rating is the amount of watts the subwoofer can handle continuously, where as the peak power is simply how much it can handle for a brief moment. If the subwoofer description only states its peak power handling, simply divide this number by 2 to get a general RMS rating. The higher the RMS rating, the more powerful the subwoofer will be.

Sensitivity: This might be even more important than the power rating. Car subwoofers that have a higher sensitivity rating (94dB) require less power to produce the same amount of sound compared to car subwoofers with a lower sensitivity rating (89dB). For example: A 12 inch subwoofer with a low sensitivity rating may not be as loud as a 10 inch subwoofer with a high sensitivity rating when both are receiving the identical amount of watts.

Subwoofer enclosure: The type of subwoofer enclosure you use will have an impact on how loud and low your subwoofer(s) will play. Sealed sub enclosures will provide deep and tighter hitting bass. Band pass enclosures will provide more volume and the lowest of the lows.

Subwoofer size: Sometimes size doesn't matter when you take the sensitivity rating, power rating and enclosure type into consideration. If the lowest and loudest bass is high on your priority list, simply get the largest subwoofers that will fit in your trunk.

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