The power of the amplifier is not the greater the sound quality is better.
1, power and tone is not proportional. Amplifier power and sound quality is not necessarily related to the sound quality is based on the sound source, wire, processing circuitry, circuitry used in the quality or performance of components and other aspects to determine.
2, the power is required to have power reserves, that is, in an instant to meet the needs of the audio. But power and tone can not be proportional. Need consistency.
3, the power of the amplifier and sound quality is not related. Sound quality, but also depends on the environment, audio transmission, music sound quality, speaker quality and other aspects. Sometimes, if the audio cable used is not good, it will also be detrimental to the sound quality.
4, amplifier power is too large, the amplifier transistor is in a dormant cold electronic state, the sound quality will be worse, and the larger the worse.
5, the best state of the amplifier is the amplifier transistor is in a hot electronic state, for example, foreign amplifier speakers are 1 to 1 ratio, allowing the amplifier to work hot, so you will find that the amplifier is hot when the sound is good, that is the reason.
Expanded information:
Power amplifier
1, the use of transistors of the role of the current control or voltage control of the field effect tube will be converted to the power supply power The power of the power supply is converted into a current that varies according to the input signal by using the current control of the transistor or the voltage control of the field effect tube.
2, because the sound is a different amplitude and different frequency waves, that is, AC signal current, the collector current of the transistor is always β times the base current, β is the AC amplification of the transistor.
3. Applying this, if a small signal is injected into the base, the current flowing through the collector will be equal to β times the base current, and then this signal is isolated with a straight isolation capacitor, you get a large signal with a current (or voltage) that is β times the original β times the original signal, and this phenomenon becomes the amplification of the triode.
A traditional digital voice playback system consists of two main processes:
1, digital voice data to analog voice signal conversion (using high-precision digital-to-analog converter DAC) to achieve.
2. Analog signal amplification using analog power amplifiers, such as Class A, Class B and Class AB amplifiers. Since the early 1980s, many researchers have worked on developing different types of digital amplifiers that achieve power amplification directly from digital voice data without the need for analog conversion; such amplifiers are often called digital power amplifiers or Class D amplifiers.
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