Coordination of the amplifier and the speaker system in the car – the choice of optimal power

Choosing a speaker system and audio amplifier in a car, you must first pay attention to the performance indicators. This criterion is central to the definition of the volume of the sound, so it must treat with special attention.

Acoustics considered the passive component of a stereo system in a car; it is not equipped with a power source and only provides the conversion of the sound signal from the amplifier to the energy of sound oscillations. The effectiveness of this conversion is not significant, less than 1% of the consumed energy can converted into useful energy. Thus, the increased sensitivity of the speakers affects the increase in efficiency.

Determining the power of acoustics and amplifier

An important value in the parameters of each device is the rated power of the device. This characteristic indicates the digital value of the power of the audio signal coming from the amplifier. At the same time, the system speaker complex can function without distortion for a long time.

There are such types of power:

• peak;
• maximum.

The indicators of these characteristics are significantly higher than the nominal; they exceed it by 3-4 and 2 times, respectively.

When adjusting the system, power matching between the amplifier and the loudspeaker speakers considered very important. However, it is very difficult to do this, since each model of these devices has its own characteristics and there is no single ratio of these values.

What determines the matching power amplifier and acoustics?

The power of the amplifier with respect to acoustics can be:

1. The same.

2. Below.

3. Above.

Nevertheless, the ideal power amplifier will be twice the power of the speaker system. Having a lower power amplifier it is important to correctly adjust the input sensitivity of the speakers. This is necessary, since very often during installation of the acoustics, the user makes a setup error, making full use of the allowable power. Moreover, if you ensure the availability of spare power, you can get the sound without any distortion.

If you choose a sound amplifier with a lower required power, this can cause damage to the tweeters. However, in this situation, with respect to the MF and woofers, then for them the probability of damage significantly reduced.

Effects of amplifier overload

Exact setting of the input sensitivity is necessary because it prevents the amplifier from overloading or the clipping effect. This process, in particularly difficult situations, may result in damage to tweeters operating at rated power. Moreover, despite the presence of crossovers, providing protection against overload, yet to avoid this effect is quite difficult.

Therefore, for a better matching of the amplifier and acoustics, crossovers need to be well tuned: the thinner the frequency range that fed from the crossover to the speakers and the better the attenuation of the filters, the higher power they can withstand without causing damage and deformations.

• The lower limit of the frequency range considered the main one, since the frequencies reproduced below it directly related to the increased amplitude of the system oscillation and the increase in the energy passed through the speaker.
• The appearance of the source signal from the source also has a strong effect, because most of the recorders, of a regular type, are able to maintain a lower level of distortion in the output signal and only in a narrow range.

Starting from half of the allowable control range, these sources are capable of producing a much-distorted signal, as well as outside the listening frequency range. In this situation, even a very well-tuned link between the amplifier and the speakers can damaged.

Summing up

Thus, improper construction or coordination of the amplifier of the sound power and acoustics can cause the failure of a single element or even the stereo system. In addition, very often, even with the correct power setting, the owner of the car tries to «squeeze» the maximum sound from the stereo system, and this can lead to a failure of the settings and, as a result, also the failure of the entire system.

Selection of the «right» equipment for the stereo system in the car can done on our website. Devices can selected by parameters or by consulting with a specialist. Choose only high-quality speakers and sound amplifiers, and then in your car will play music with a particularly powerful and clear sound. You can buy car acoustics with delivery to Kiev, Odessa, Kharkov and throughout Ukraine at 130.com.ua.

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