The use of amplifiers in car audio systems are designed to strengthen the voice signal coming from the main source or unit heads and then disbursed to the speakers.

Amplifier receives a signal from the sound source and manage it so that the sound signal has more power and strength so that the speaker can give a voice to get the maximum intake of energy needed in the issue of sound waves.

To use a car audio system, commonly known by the kind of multi-channel and mono block. Multi-channel amplifiers are generally used to amplify audio output signal in the form of electric current to the speakers (tweeters, mid-range, bass speakers Central or Coaxial)

Mono block type that is used specifically to strengthen the signal to be poured into a subwoofer that really require a big power (voice audio).

There are several types of amplifiers (audio), which is a class type A, B, AB, D, Hybrid, Tube and each type has its own character, different power outputs, namely:

Class A: Having the best quality to produce better sound quality, but very wasteful of energy and heat more quickly. the price for this type are generally very expensive depending on the brand.

Class B: Does not generate excessive heat and do not waste energy, but can produce sound pretty good.

Class AB: This is the most widely used by car audio player, amplifier combination class A and B, so it can be more efficient and flexible for use in car audio systems and have better quality than class B.

Class D: This type is the most widely used to drive a subwoofer and used to the concept of SPL (Sound Pressure Level), for class D amplifiers have a power (Watt) are large and able to survive under 1 ohm, so it can produce more dynamic bass sound and generally It is the kind of mono block class D amplifier

Class D: This type is the most widely used to drive a subwoofer and used to the concept of SPL (Sound Pressure Level), for class D amplifiers have large power range (watts) and can survive under 1 ohm, so it can produce more dynamic bass sound.

Hybrid: In this mode, the electronic components of hybrid amplifiers using transistors and tubes. The combination of these compounds make a kind of amplifier that can produce a thick sound character qualities, with good accuracy tone like a full tube amp, but still owned by an affordable price.

Tube: This type of amplifier can produce better sound quality with the character of a vowel sound more natural, not thick and stiff / dry, but the type of tube amplifiers, generally have a very high price to have,

With a big difference in quality, character and components of each type of amplifier, proving that the quality of the amplifier can also determine the character and quality of sound produced in car audio systems.