If you want to blast the speakers of your car audio system, you will need to install an amplifier. Basically, an amplifier picks up a sound signal from a source and increases it, resulting in the sound getting louder. The difficult part is amplifying the source signal without distorting it. In order to keep them functioning, amplifiers require an adequate power supply and must also have the ability to store sufficient current to be able to deliver all the fluctuations within the music being played.
A CD player or cassette radio produces about 9 real watts at the maximum into 4 speakers considering the power it is provided from the electrical system of the car. However, in case you want more than that to power the speakers you have, you will require an amplifier. Amplifiers provide the extra power resulting in your ability to play music louder. In addition, amplifiers improve the quality of the sound at every level of volume that the music is played in.
In case you are thinking of buying a car audio amplifier, you will require taking into consideration a few factors beforehand. Some of these factors are the power, the channels, and the heat.
The power is one of the most important aspects that has to be taken into consideration when you buy a car audio amplifier. Basically, there are two kinds of power ratings: RMS and Peak.
The RMS rating is a measurement how much power the amplifier will be able to use in order to power the speakers. When buying your car audio amplifier, be careful to choose one to match the ratings of the speakers and subwoofers. If you do not do so, there are high chances of damaging your speakers.
The other type of power rating is the peak rating. This is a measurement how much power that the amplifier has when there are sudden amplifications of sound. This rating is not as important as the RMS rating. Car audio amplifiers usually have a lower RMS rating compared to the peak rating.
The power of amplifiers range from around 20 watts per channel to more than 1000 watts per channel, while the prices range from anything like $50 to thousands of dollars according to the quality, power output, and features.
The next thing you need to take into consideration is how many channels they have. Amplifiers range from a single output channel to up to 8 channels. The most popular models at present are 2 and 4 channel ones, although mono amplifiers are also getting quite popular. It is the number of channels that will be the determining factor of how many speakers can be connected to the amplifier. Amplifiers have a left and right signal for each of the channels they have.
Another thing you need to think about is the heat factor when you buy your car audio amplifier. Always look for ones that have a heatsink designed into them. These are metal strips that are provided on the exterior of the amplifier. The heat that is generated by the car audio amplifier is absorbed by the heatsinks.
In case you want to go in for multiple car audio amplifiers for your audio system, then you will require one with a preamp output, which will enable you to connect multiple amplifiers to each other. The amplifier which has the preamp output will send the signal to the other amp.
The quality of the amplifier has also got to be kept in mind when buying one. Generally, the weight and the size of the amplifier itself is a good indication of the quality of the power output as well as the build. Usually, amplifiers that are of better quality usually have a larger and heavier heatsink compared to one that is of a lower quality, although many top quality amplifiers may not always follow this prescript.
In order to produce bass tones, large car audio subwoofers require lower end frequencies. However, make sure to not to go in for frequencies that are below or above the range that is recommended. If the frequency is too high it will cause undesirable effects on the sound quality, and if it is too low, the speaker could get damaged. Most amplifiers come with a subsonic filter to prevent frequencies that are too low, and also a crossover to eliminate the higher range of frequencies. These components will help the speakers receive the correct frequencies they require for performing at their optimum level.
Buying a good quality car audio amplifier is like shopping for any other component for your car audio system. First, you need to have a good idea what you intend accomplishing with your amplifier, and then make a thorough research of the choices available accordingly. You don't need to buy the most expensive one if you are just installing a superior quality car audio system in your vehicle. But if your goal is taking part in car audio competition, then you will need to go in for a top quality and expensive amplifier. Make informed choices by finding out all the facts before buying one.