Selasa, 05 Oktober 2010

Knowing and Choosing Amplifiers


audio, especially audio car (Car Audio), amplifiers usually referred to as power. The use of amplifiers in the car audio system aims to strengthen the voice signal coming from the main source or a head unit which will then be channeled to the speakers.

So the charge amplifier receives a signal from the sound source and manage it so that the voice signal has more power and strength so that speakers can make a sound for a maximum intake of energy needed in the issue of sound waves.

Amplifiers for car audio use, is generally known as multi-channel type and monoblock. Multi-channel amplifier is commonly used to strengthen the output (output) audio signal in the form of electrical current to the speaker (Tweeter, Midrange, Midbass speakers or Coaxial), while for the type of monoblock, used specifically to enhance the signal to be channeled to the subwoofer is most needed great power.

While in particular, according to Johnny, fitter than Mega Audio, the number of West Jakarta, also known as the amplification some kind of amplifier, the type of class (Class) A, B, AB, D, Hybrid, Tube (tube) and each type of character, the power output of different, namely:

1. Class A: Having the best quality to produce quality sound, but very wasteful of energy and heat faster. Prices for this type of price dibanderol generally very expensive, generally can be more than 20 million dollars per unit, will however depend Itupun of his brand.
2. Class B: No quick heat and wastes no energy, but has a quality in producing good sound.
3. Class AB: It is the most widely used by car audio players, because his character is a combination of amplifier class A and B, which can be more efficient and flexible for use in car audio systems and have better quality than class B.
4. Class D: This species is the most widely used to drive a subwoofer and the SPL is used to the concept (Sound Pressure Level) for Class D amplifiers have a power (Watt) are large and can be burdened to below 1 Ohm, so as to produce sound more dynamic bass and usually kind of class D monoblock amplifier that is.
5. Hybrid: This type of amplifier is the electronic component using transistors and tubes (tubes). Merging these two components make this type of amplifiers capable of producing sound quality of character is thick with good tonal accuracy as full-tube amplifiers, but still be owned by a still affordable price. Hybrid type amplifier usually has a price ± 4 million-an * (depending on brand)
6. Tube (Tube): car audio enthusiast circles recognize this type of amplifier can produce better-quality sound with a vowel sound character more natural, not thick and stiff / dry, but the type of tube amplifiers, generally have a very high price-to-have, price range be above 40 million rupiah.

With the difference in quality, character and components of each type of amplifier, proving that the quality of the amplifier can also determine the character and the resulting sound quality in a car audio system. For that before buying the amplifier must be many who consider that not one choose, here are some tips on selecting the amplifier:

1. Select amplifier with the RMS (watts) is large and its THD is small.
2. The design and materials quality still must be considered also.
3. Adjust power / RMS amplifier with speakers need to be used. Power amplifier must adhere to or greater than the required speakers, because if the power is smaller than the needs of speakers can cause damage to the speakers used, because of the ’signal clipping’.
4. Select the brand of amplifier that has an official guarantee from the brand holders
5. Look for information from various media or check with the installer car audio amplifier trusted before buying.

Last closing interview with the SO, Johny provide information that do not allow an unused amplifiers in a period of time long enough, because it can cause damage electronic components.

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