Building the right audio system in a car is a science and a huge area for personal creativity. Lovers of high-quality and loud sound are ready to invest huge funds and efforts in the implementation of the conceived musical scheme. The obligatory elements for the organization of sound are the presence of sound and vibration isolation of the body, the presence of high-quality acoustics, additional wires, the radio tape recorder itself and the car amplifier.
A car amplifier is an intermediate link between speakers and a radio tape recorder. This device is necessary because the output power of the radio is usually quite small and the amplifier built into it is not capable of working with the powerful acoustics that are traditionally chosen by car music lovers.
Without an amplifier, you will not be able to achieve an even, rich sound in which there will be an optimal frequency range. A powerful speaker system simply cannot work without a signal of the required power. The most you can count on is a quiet hiss in the speakers or a barely audible sound of music.
For an amplifier to be optimal for use in a car, it must have the lowest possible power consumption with consistently good signal processing. In addition, this device must be able to remain operational with temperature drops and changes in humidity.
Quality amplifiers suitable for use with modern speaker systems have multiple channels. The channel allows you to work with one speaker of a certain type. The more channels there are, the more interesting acoustic circuitry can be connected to the amplifier. However, this does not mean that a single channel amplifier is used on primitive systems. Often, it is on advanced versions of the automotive system that single-channel amplifiers are used to amplify, for example, only low frequencies. Other channels are processed separately.
The functional diagram of car amplifiers is almost always identical. The only difference is the quality of parts and build quality, as well as power. It often happens that inexpensive and expensive amplifiers have exactly the same circuit and are only removed in different cases. You won't be able to check it right away, but if you suddenly need to repair this device, then dismantling the amplifier will immediately show this.
List of the main parts of the car amplifier
The car amplifier is traditional. The power unit (or power supply) itself is an amplifier and a crossover.
The power unit converts the low voltage of the 12 V on-board network into a voltage of 50-60 V. The increased voltage is supplied to the amplifier module. The amplifier module consists of several microcircuits and its task is to amplify and compare signals at the input and output. Further, the amplified signal goes to the crossover, where it is distributed to the optimal frequencies for each specific speaker.
Thus, if you paint the block diagram of a car amplifier, then it will consist of a power supply, a crossover and the amplification module itself.
Capacitor
In addition, to properly connect the amplifier, you will need to install a car capacitor. This element is necessary to work in conjunction with the amplifier, if the latter "collapses" the vehicle's on-board network with high current consumption. In this case, the capacitor allows you to get these high rates from the capacitor, having previously charged it from the battery with small (or, better to say, permissible) currents.
A capacitor is a rather expensive part of the entire sound system, but powerful technology cannot work without it. Therefore, the price does not play the most important role here.
