Choose the car amplifier suitable to our stereo system is not a trivial thing. For we must consider several factors, including the use we want to do, the type of system we want to accomplish and the sum to be spent available.
The main choice to buy it concerns the place of purchase: it is definitely preferable to a specialist shop than the mall.
The design for the amplification
Before then purchasing dell 'car amplifier , it is good to have in mind the stereo system design. It 'true that today's technology allows us to listen to music anywhere, all you need is a tablet or a smartphone and use one of the many music playback programs (. Eg Amazon Cloud Player ), but in the car, we can opt for an amplifier that the best musical performance.
The choice can vary between a system with integrated amplifier, or a system with separate systems for the front face and for the subwoofer, or a three-way model, two of which are dedicated to the front face, and one dedicated to the subwoofer.
The best solution in terms of quality is certainly the second, but you have to have a large enough budget. At the brand level, it is important to choose among the best in the industry, such as Pioneer, Rockford Fosgate, JBL, Kenwood etc ...
Integrated car amplifier
This solution is certainly much cheaper, but it is not very recommended because the same device would boost two elements, subwoofers, and speakers , with different characteristics, including the size of the coils. For this will suffer different loads of power, sometimes unnecessary and excessive times for that type of device.
Separate amplifiers
Dedicate one of only the subwoofer is much more desirable to get the most from your system. The main characteristics which make reference in the selection are above all the power, which must be equal to that supported by the speakers, less an about 10%. The distortion must be less than 0.05%, the highest signal to noise ratio of 90 dB, and finally, the frequency response in a range of 15 Hz to 35,000 Hz.
Sound fundamentals
Internally, for a car amplifier, it is composed of various elements, active defined, which are connected between them through a series of electronic components such as capacitors, inductors, and resistors. Each of these goes to make up one stage, and each stage is powered from the previous cascade, from a DC voltage source.
Classes of amplifiers
Based on the way you work, every boost car will be part of a particular class.
Class A is the best, and the Class A system allowing the transmission of the sound signal generating very low distortion at the expense of excessive heat you go to generate.
Class B contains devices that shoot to the very high power signal, but with excessive signal noise.
the other existing classes are AB, which seeks to synthesize the positive characteristics of previous stages; Class C is not recommended to amplify the low frequencies due to the strong disturbing signal which would generate. Class D integrates digital circuits.
Depending on the model we choose, we are in a number of technical features that you should know to avoid taking a product that does not meet the car requirements.
Audio sensitivity
The sensitivity is related to input, ie it is the voltage required to be applied to correctly input terminals so that the amplifier works.
Nominal power
The rated power is detected on the output channel when it is uploaded to a base equal to 4 ohms. This power measurement is expressed in watts, and always refers to a distortion contained in a frequency detection signal is usually equal to 1 kHz (something Watt RMS).
When buying car amplifier, it is good to read that the power given as output is expressed in watts RMS and not in other types of wattage such as Watt-peak or peak watts music. In fact, Watt RMS correspond to 8 times the watts peak to peak and 2 times the watts Musical.
Other features to consider when buying is the ratio of signal to noise (expressed in microvolts or in decibels) and the frequency response.
MOSFET circuit
Most of the amplifiers require a MOSFET power supply circuit. This particular type of circuit used to output to a speaker a power dose in case of voltage drops that may occur in the car, due to the particular structure of the car power supply circuit itself.
However, there are many sites in online which provide the comprehensive guide of best amplifiers. We recommended to you read this 5 BEST AMPLIFIERS FOR CAR THAT YOU CAN BUY TODAY it's a highly comprehensive guide of best car amplifiers.
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