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Car audio crossovers are essential units of car audio systems that are often ignored. Crossovers split frequencies so that each speaker receives a certain range of frequencies. This is for the following reasons:

To avoid speaker damage - Speakers are designed to play a certain range of frequencies. A speaker will produce distortion if other frequencies are played. These other frequencies may destroy it.

Total balance - If a sound system with subwoofers and full-range speakers doesn't have a crossover, then it leads to a non-balanced sound. Sub woofers play low frequencies well because that's what they are designed to do. Tweeters handle the high frequencies excellently. A crossover ensures only the right frequency range goes to a particular speaker.

Crossovers vary in their flexibility. Whereas some only have a few frequencies to choose from, others have a whole range of frequencies to choose from.

Types of Crossovers

There are two types of crossovers - Active and Passive.

Active crossovers need external power to operate and work at low-signal voltage levels. Signal from the head unit is split into low frequencies, mid frequencies and high frequencies. These go to different amplifiers.

Since everything is done at low voltages, signal is not affected as with passive crossovers. There is much more flexibility, since all that is needed to adjust crossover frequencies is to turn a knob.

However, more amplifier channels are needed to connect speakers.

Passive crossovers receive high signal levels and work after the amplifiers. All the frequency splitting is done after the amplifiers so more speakers can run off an amplifier channel.

However, passive crossovers can get more complex as more capacitors and inductors are added. These capacitors and inductors also dissipate power thereby wasting energy that speakers could be using.

Visit car-audio-products-and-accessories.com to read more car audio articles. Check CarAudioPlus for your car audio products and components.

Chimezirim Odimba writes for CarAudioPlus.

Why Alpine Car Stereos are Ahead of the Pack

Alpine Car Stereos rock. The industry leader in manufacturer high performance mobile electronics, Alpine Electronics of America, Inc., founded in 1978, is the only branded manufacturer who specializes in mobile multimedia, incorporating digital entertainment, navigation products for your mobile entertainment and an integrated system approach security. Being a subsidiary of Alps Electric Co., Ltd., which is one of the world's largest manufacturers of electronic components for communications, computer and car electronic equipment, Alpine is the specialized supplier of mobile electronics systems of good quality.

Alpine's products are of high-quality and are competitively priced. Alpine's Mobile Multimedia systems are designed by combining music, information and visual images.

Based on convergence of audio that is high performing, video, telematics and navigation, in the Mobile Multimedia format, Alpine is coming out with a novel in-vehicle space. Digital versatile disc (DVD) players, Intelligent Transportation Systems (ITS), Dolby Digital systems, mobile data linking, satellite digital audio radio, and communication through telematics devices would be transposed with navigation systems to bring about a variety of products. Mobile Multimedia is an integration of Alpine's innovative video, audio, security and navigation products along with human interface, GUI for Drivers and information communications technology. Alpine makes most use of digital technology and media for the development of its products.

May it be on road or on water, the in-vehicle experience can be improved. Alpine's SPR-M700 7-inch is part of Alpine's innovative line of products. Another of its products, the SPR-M700 is a speaker that is 2-way coaxial. It possesses excellent power handling and can deliver supreme performance.

A 1-inch titanium dome tweeter is used in the SPR-M700 Type-R speaker. The 7-inch woofer delivers heavy bass that carries the outdoor environment in. For durability that is hardwearing and UV protection to prevent yellowing, there are the Centrex 813-coated grilles and non-resonant, high-strength, high-temperature ABS frames. The SPR-M700 has Santoprene(tm) surrounds for high response performance in high frequency and great resistance against moisture, heat, oil and chemicals.

Sometimes you may get good power in your system, but without clarity. In such cases, adding the Type-R speakers would be the best option. These Type-R speakers give great performance with superior linearity, clarity, efficiency and great bass.

The Type-S speakers have a voice coil that is large and soft-dome of silk to produce sound that is of high quality. The new grille has look of sleek aluminum which helps in optimizing sound by way of improving the sound dispersion. The tweeter guard's angle complements that of the surround guard, thereby bringing about lesser distortion at greater frequencies.

In case you are looking to upgrade your car stereo system, you could start by doing so with the speakers. The Type-S speakers are more economical, can be installed easily and they deliver excellent sound.

Alpine Car Stereo systems have a number of components and products that come in different sizes and types to give the best fit for your car. It is advisable to purchase the car stereo from an authorised Alpine dealer to ensure guaranteed performance.

Alpine Car Stereo - try one!

About the Author

Muna wa Wanjiru Has Been Researching and Reporting on Car Stereos for Years. For More Information on Alpine Car Stereos, Visit His Site at ALPINE CAR STEREOS

How should I go about upgrading my 2004 tacoma's audio?

it has 4 main speakers and two tweeters in front.
I would like a subwoofer, but it looks like I don't have much room. I want to get a new stereo with more power, and I think I may need a new alternator.
I'd like to know if theres a site I can go to with all the information, or if you happen to know what size speakers I need to replace my old ones and if I can fit a subwoofer.

Send me an email. Let me know whether you have a single cab, double cab, or xtra cab. Also let me know if you have the radio with or without the pocket below it. Also, let me know how much you're looking to spend or if there is even a limit. Give me this and I'll hook you up. I've done installs on several Tacomas so I'll be able to let you know everything you need to know.

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