It is device which is used to increase the voltage, current, or the power of a particular signal. They are now commonly used in various electronics media and wireless communication devices and also for broadcasting the signals. It is the widely used electronic device in the world and a basic building block of a various electronic circuits. Basically its work is to increase the power of a signal thereby making it stronger than the given input.
There are simply two types of amplifiers as power amplifiers and weak signal amplifiers. The former used in wireless receivers and the later one used in wireless transmitters and in higher audio devices. Power output and efficiency are the two major key points while considering amplifiers.
Power handling capacity
There are two ways that will result in the blowing up your speakers if t is underpowered or overpowered. When the speaker is underpowered and meanwhile the amplifier is turned up it can produce a sound wave that can melt the coils of your speakers. On the other hand if amplifier is more powerful than the handling capacity of speaker then it will clip the speakers. So you have to be sure that the amplifier you are buying is neither low power nor of high power so that they can be matched up with your speakers.
Two amplifiers of the same wattage and channel numbers can be of different price because of their brands, so always choose durable and high-quality amplifiers of well-known brands.
The number of channel depends on the number of speakers you have. The more number of speakers the more channels you need to power them. So always buy an amplifier of that can support multiple number of channels. These are available with mono channel, 2 channel, 4 channels amplifiers etc.
You should be sure that you are getting a warranty with your amplifiers for that always buy an amplifier from an authorized dealer. If anything happened to your amplifier and later on you find that the seller is not authorized then you can’t replace your item.
It is highly recommended for you to go for the buying of the speakers first then look for the appropriate amplifier in a condition where you want to build your own stereo system. But if you don’t want to that or never wants to upgrade it, then you should always look for the RMS power rating of your speakers then choose amplifier accordingly.
Head Unit Compatibility
It is advisable for you to go for a head unit that has pre amplifier outputs that will allow a direction to the receiver with your amplifier therefore in results produces much better sound quality and performance.
Physical Size of the amplifier
Make sure that the amplifier will get fitted under the seat of the car. So always choose a smart and small amplifier that can fulfill all the required qualities of your own.
Know the Industry Leaders
You can gather some information about the top amplifier manufacturers by visiting their company web sites. Some of them are Fender, Roland, marshal and also consider the building experience. The more established the manufacturer, the better the chance for a great product.
There are number of amplifiers available in the market some of these are good and some are bad using your judgment and guidelines provided to you, you can chose better amplifiers of your desired needs that can fulfill the wishes of having a good amplifier with better sound quality and performance.