วันเสาร์ที่ 20 กุมภาพันธ์ พ.ศ. 2553

Tips for choosing a car audio system

Car audio has come a long way from the old standard AM / FM / cassette combo deck. Today, the automotive multimedia systems including video, television and navigation systems with local hotspot news DVD. Common to all systems is the sound quality.

The quality of sound in a car audio system depends on a number of factors - the nature and quality of the media player system, the type of speaker, the acoustics of the vehicle and interference from otherDevices.

Type and quality of Windows Media Player System

Before discussing the different types of media players in the vehicle, it pays to have a basic understanding of audio quality have. When deciding what type of audio system to install, and even if a comparison of the brand and model on the other hand, there are two important features to consider:

SNR [SNR] - a measure of the signal strength compared to the background noise of the signal or equipment.Measured in decibels. The higher the dB, the better. A car CD player has an SNR of 90 dB or 100

Frequency [FR] - a measure of how much remains derived from the audio spectrum, from bass. E 'measured as a series of Hertz and the wider the choice, the better. Find a CD with a break of at least 10-20k Hz

An FM radio, CD player and cassette are all different measures tothese specifications. To better understand these two specifications, we compare a car tape player and a CD-ROM.

Cassette player has an SNR of 50-70 dB. This figure is lower than a CD player, sound quality degrades at each end of the spectrum. The FR is around 30-18K Hz for a tape recorder, so you do not contribute much to the sound quality as the SNR.

Thus was there a great car CD playerbetter sound quality of a tape cartridge.

Media players in vehicles today are tuner or radio, CD player / changer or digital audio player.

CD Players & Changers

There are a number of options when it comes to playing CDs in a car:


A CD in-dash - often in combination with radio tuner, WMA/MP3 player
In-dash CD receivers --multi-cassette-CD changer in other parts of the vehicle

Connect a portable CD player to an existing in-dash audio device via a cable and adapter or a Bluetooth connection.

Note When selecting a CD, the first two things are:


You can physically fit in the car?
The visually integrated with the dashboard and other electronics?

Most bridges have a standardized formatFactors fit many cars, but there are exceptions, so make sure that the platform is suitable for your vehicle. They are usually very safe and the car is expected to be the source of the passenger car market:

Aesthetic integration is a bit "more complicated, but in many cases easily resolved through the adjustment functions. For example, many bridges you can use the masks and the color screen.

Digital Audio Car Systems

In most audio systems for home andportable players to give Crisp sound quality with digital audio, we are not with the home audio systems for vehicles Bland satisfied older analog audio.

If you usually use your digital music files to CD changer compatible stereo or is a good option. Up to 10 hours music [250 songs] can be stored on a single disc and allows the use of random numbers mixing and repeat options. This disadvantage is ease of use, with the loading and unloading of cassettes in the trunk or underSeats and the limited file formats that can play your stereo.

So now you have the Media Player, which is selected via the speaker system.

Car Speaker System

The loudspeaker system is thought of in two parts: the unity of the physical channel amplifier and speakers.

For power amplifiers in your car stereo speakers deliver clear sound quality at high volume. Each speaker requires one channel amplification. This means that a channel 4Amplifier will support four speakers.

And the selection of speakers is not limited to one. With a range of options for the basic stereo speakers [2 channels], you can after completing the act of high quality with a tweeter and bass notes with a subwoofer. This gives you the standard 4-channel audio system that will rival your home stereo.

Added an option for a car stereo, as a rule by including subwoofers, amplifiers and crossovers, the sound output of personal data SchneiderTaste.

This does not mean that the result is the boorish, obnoxious bass boom boxing that invades the whole neighborhood. A subwoofer adds quality and purity of the music.

Detailed information on each part of your system, see Go-Reviews.com - Car Electronics Section

The most important factors in the selection of speakers are:


Design or Speaker Type
Specifications
Installation and assembly

Speaker design is the combination of audio driver Mid-Range --Subwoofer and tweeters. Depending on the combination of the combination as a two-way, three or four lanes as a speaker is known.

Special car speakers are similar to home audio speakers, the main difference in the specific techniques to compensate for lower performance with radios.

The speaker technical specifications included sensitivity, frequency response, signal to noise ratio, power handling and impedance. Take a look at these data in detailfollowing article.

The fittings and mountings are depending on where you are placing the speakers selected. Car speakers are mounted either up or down. Depth of clearance is important if you are new speakers installed in a factory speakers. Then you should all components carefully before purchase.

With such a combination is possible over the Internet is a valuable resource in the comments of automotive electronics. Sites like Go-Reviews.com researchReview and consolidate the recommendations to give you a quick guide for the purchase.

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