Pick audio amplifier is perfect for your home theater
If we look at the audio amplifier products now, you can not avoid being overwhelmed by the number of techniques and models. I will explain some basic terms and amplifier can help you choose the best model, no matter what your specific application would be.
audio amplifiers are the fundamental connection between the source such as a DVD or Blu-Ray and speakers. An amplifier, the sound source is relatively weak in a strong enough signal to drive speakers.
Depending on theapplication, you should go with a source that has an integrated amplifier. But using a separate amplifier will give you more flexibility in choosing the model which best suits your speakers. Some of the mini-amp models today are small enough to hide almost anywhere.
In selecting an amplifier, your first consideration is probably the output power amplifier. You want a high wattage required if you drive speakers with low sensitivity resistance (in dB / W) to drive the speakers in large environments or external speakers. But do not turn the speakers. This can damage the speakers can not be repaired.
But not too concerned about the power is. Amp 20-50 watt oven, power more than sufficient for the proper functioning of a speaker in one, but the largest room.
Amplifier output power is given as Watts RMS (continuous) and W peak. RMS or constant value indicates how much power amplifiercontinues to offer, while the figure for maximum power tells the maximum wattage the amp can deliver for short periods. You need an amplifier, there is enough room to choose, although 10-30 watts should be sufficient for most applications, but has enough space for the peaks in music signals.
There are other parameters that are most important when choosing a watt amplifier. An important parameter called the total harmonic distortion or THDcards. No amplifier is perfect, and the amplified signal will include an error component, the signal will be distorted to some extent. THD is expressed as a percentage or dB. A small number of disturbances, lower distortion audio signal through the amplifier. traditional amplifiers weigh number typically less than 0.05%. Consumer amplifiers can distort the figures up to 10%.
Another issue is called signal to noise ratio. ThisThe number determines the amount of unwanted elements such as hum and noise from the amplifier to add audio. High-end, a signal-noise amplifiers of at least 100 dB of gain, while consumer prices amplifiers can generally a signal of at least 80 dB.
Most amplifiers today are based on a technology called Class-D in a higher efficiency amplifiers based on a Class A or Class AB technology. High efficiency means less powerlost as heat by the amplifier is relatively small. Some of the current mini-amplifiers are smaller than a deck of cards. But when you choose a class D (digital) amplifier, make sure the amplifier has low distortion and high signal to noise ratio.
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