Amplier - Genuine Audio Amplifier

1. What is Amplifier?

Amplifier plays an important role in the speaker system when it is used to amplify sound, usually placed between the sound source and the speaker. The main function of the amplifier is to receive the input signal from the music source, enhance the audio signal and emit a signal with rapidly increasing volume, thereby transmitting it to the transmitter, that is, the speaker.

2. Structure and operating principle of the amplifier

2.1. Basic structure of an audio amplifier

Input: Where the input signal from the audio source is received.

Amplification Circuit: Includes electronic components such as transistors or Valve/tube to enhance the amplitude of the input signal.

Power Supply: Provides energy to operate the amplifier circuit.

Output: Is where the amplified signal is output to send to speakers or other devices.

2.2. Basic operating principle of audio amplifier

Input reception: The amplifier receives audio signals from an input source, such as a music player or microphone.

Signal amplification: The amplifier circuit in the amplifier increases the amplitude of the input signal. This is often done by using electronic components to control the current or voltage in a way that increases the magnitude of the signal.

Control and Adjustment: Some amplifiers have tone controls to change sound parameters such as bass, treble, and midrange. These adjusters help listeners fine-tune the sound according to personal preferences.

Output of amplified signal: The amplified signal is output through the output for conditioning to speakers or other devices where sound is reproduced.< /span>

Power source: An amplifier needs a power source to provide power to the amplifier circuit. This can be a fixed power source or a variable power source.

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3. Function of amplifier in sound system

Amply plays an important role in sound systems and has many important functions to improve and control sound quality. Below are some important functions of amplifiers in an audio system:

Signal Amplification: The main function of an amplifier is to increase the loudness of the audio signal from the input source. This helps ensure that the signal has enough power to reach the speakers and produce quality sound.

Signal Control: Some amplifiers have tone controls such as bass, treble, and midrange, which help listeners adjust the sound to their personal preferences. core. These functions help optimize sound for specific music types or listening needs.

Signal Format Conversion: Some amplifiers have the ability to convert signal formats, such as converting analog signals to digital or vice versa. This is useful when connecting to other devices in the system.

Speaker Protection: Amplifiers often have protection features such as overload protection and thermal protection to ensure that the speakers and amplifier circuit The amplifier is not damaged due to overload or overheating.

Signal Processing From Input Sources: In addition to amplifying audio signals, amplifiers may also have signal processing features such as noise suppression and noise reduction noise, or other advanced technologies to improve sound quality.

Delay Adjustment: In some audio systems, an amplifier can be used to adjust the delay of the signal, helping to ensure that the sound sound from different speakers reaches the listener's ears synchronously.

Coordination with Other Devices: Amplifiers are often designed to coordinate with other devices in the audio system such as players, decoders, and speakers. to create the best overall audio experience.

4. Classification of amplifiers

On the market, amplier are popular with the following types:

• Pre-amplifier (Pre-amplifier):

Plays an important role in the audio system by receiving signals from the audio source and amplifying them to a level that can be received by the power amplifier/pump. In many cases, amplifiers must process signals from many different sources, but these sources have uneven power, which creates the need to use pre-amplifiers in audio systems. Notably, the pre-amp's output signal is often very weak (only a few hundred microwatts), so the audio system requires another amplifier to operate.

• Integrated Amplifier:

Is a more convenient solution that includes both pre-amp and power amplifier. Although popular for its convenience, professional audio experts often prefer separate amplifiers and pre-amps due to their ability to better reduce signal noise. Integrated amplifiers may experience higher signal interference than individual amplifiers.

• Power Amplifier:

Receives input signals from a pre-amp or any other device and generates enough power to supply the speakers. The power generated serves the needs of the speaker, which can range from a few watts for small devices to hundreds of watts for powerful sound systems.

• Receiver Amplier (Receiver):

Essentially an integrated amplifier with the ability to receive radio waves. The term "receiver" comes from their ability to receive radio signals. Later, "receiver" also used to refer to devices with various connectivity features. Because the receiver includes an integrated amplifier, they also have similar features.

5. Factors affecting the quality of the amplifier

Amply is a sound amplification device, playing an important role in the audio system. The quality of the amplifier directly affects the quality of the output sound.

Factors affecting amplifier quality include:

Capacity: Amplifier capacity is the amplifier's ability to amplify sound. The larger the amplifier capacity, the stronger the sound amplification ability, the louder and clearer the sound emitted. However, the amplifier power also needs to match the speaker power to avoid speaker damage.

Structure: The amplifier structure affects the amplifier's ability to dissipate heat. Good heat dissipation helps the amplifier operate stably, avoiding overheating and damage.

Material: The material used to make the amplifier affects the durability of the amplifier. The amplifier is made from high quality, highly durable materials that will last for a long time.

Features: The amplifier has many different features, helping users easily adjust the sound as desired.

Brand: The amplifier brand is also a factor that affects the quality of the amplifier. Reputable amplifier brands often use high-end components, have strict production processes, and deliver good sound quality.

Quality of power source: A clean, stable power source will help the amplifier operate better, limiting noise and distortion.

Location of the amplifier: The amplifier should be placed in a cool place, away from direct sunlight and high heat sources.

How to use: The amplifier should be used properly, avoiding overloading the amplifier.

6. Instructions for choosing the right amplifier

Amply is a sound amplification device, playing an important role in the audio system. Choosing the right amplifier is essential to ensure the best sound quality. Below is a guide to choosing the right amplifier:

• Determine usage needs:

Before choosing an amplifier, you need to determine your needs. Will you use the amplifier to listen to music, watch movies, perform or serve any other purpose? Depending on your needs, you will choose an amplifier with appropriate capacity, features and price.

• Determine amplifier capacity:

Amplifier capacity is the amplifier's ability to amplify sound. The larger the amplifier capacity, the stronger the sound amplification ability, the louder and clearer the sound emitted. However, the amplifier power also needs to match the speaker power to avoid speaker damage.

• Identify amplifier features:

The amplifier has many different features, helping users easily adjust the sound as desired. Features commonly found on amplifiers include:

1. Adjust the volume
2. Adjust the bass
3. Adjust treble sound
4. Adjust mid tone
5. Adjust sensitivity
6. Adjust delay
7. Adjust effects
8. Determine the amplifier brand

Reputable amplifier brands often use high-end components, have strict production processes, and deliver good sound quality. Some famous amplifier brands on the market today include:

1. Denon
2. Yamaha
3. Pioneer
4. Onkyo
5. Sony
6. JBL
7. Bose

• Consider the price

Amplifier price depends on many factors such as brand, capacity, features, materials... You should consider your usage needs and financial ability to choose an amplifier with a suitable price.

• Test the amplifier

Before buying an amplifier, you should go to the store to test the amplifier. This will help you evaluate the sound quality of the amplifier and choose the amplifier that suits your needs.

• Note when using amplifier

The amplifier should be placed in a cool place, away from direct sunlight and high heat sources.

Amplifiers should be used properly, avoiding overloading the amplifier.

7. Top 5 best amplifier manufacturers

Marantz Amplifiers: Famous for hi-end audio products, Marantz produces amplifiers with quality sound and beautiful design.

Denon Amplifiers: As one of the leading brands in the audio industry, Denon provides a wide range of amplifiers for home and professional audio systems.< /span>

Yamaha Amplifiers: Yamaha is a multitasking brand that produces not only audio amplifiers but also other music and entertainment products. Yamaha amplifiers are often highly appreciated for their features and performance.

Onkyo Amplifier: This brand is famous for its home audio and home theater products, with amplifiers that are highly appreciated for their sound quality and connectivity.< /span>

Cambridge Audio Amplifier: As a company specializing in hi-fi audio products, Cambridge Audio amplifiers are often highly appreciated for their detailed sound quality and performance.

8. Where to buy genuine amplifiers at good prices

HSV ProAVL specializes in providing the most prestigious genuine amplifiers in Vietnam, we Providing genuine amplifiers at good prices, nationwide delivery to customers.

HSV ProAVL provides a variety of genuine amplifiers from famous brands in the world such as: Yamaha, Denon, Pioneer , Onkyo, Sony, JBL, Bose,...

With more than 10 years of operation in the field of sound and lighting, we are always proud to be the leading unit, bringing high quality sound solutions to you.

If you want to buy home amplifier, professional amplifier please contact us using the information below:

Hanoi: 0972.787.123

HCMC: 0913.222.075

Email: hsvavl@gmail.com

Website: http://proavl.vn/

Hanoi Branch: No. 229, D. Van Tri, Van Noi ward, Dong Anh district, Hanoi

City headquarters. HCM: 184/20 Le Dinh Can, Tan Tao Ward, Binh Tan District, City. HCM

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