Views: 0 Author: Site Editor Publish Time: 2023-05-02 Origin: Site
What are the advantages and disadvantages of integrated and split amplifiers?
What is the front and back stage circuit?
Generally speaking, the operation of the audio system is that after the playback device decodes the audio source, it transmits the signal to the pre-stage circuit through the line. After the pre-stage circuit amplifies the signal for the first time, it then sends the signal to the post-stage circuit. The latter stage is amplified for the second time, and finally the speaker is pushed to produce sound.
Because the signal of the playback device is very weak in both voltage and current, it is easy to be interfered. Just like in the game of word passing, if everyone uses a very small voice to pass the same sentence to the next person, then when it reaches the last person, the sentence will be completely different.
The same is true in the audio system, if the player's signal is too weak, the final sound will be messy and distorted. The function of the pre-stage circuit is to filter the noise in the original signal, and perform the first voltage amplification, and then transmit it to the post-stage circuit for the second amplification.
2. What is the front and rear amplifiers?
The power amplifier is actually the abbreviation of the power amplifier. The pre-stage circuit and the post-stage circuit are placed in different chassis independently, which is the independent pre-stage power amplifier and post-stage power amplifier. For the audio system, the front-stage power amplifier is more for audio signal reception, volume adjustment and basic signal amplification, while the rear-stage power amplifier is more for output amplification and power amplification.
In terms of appearance, the front and rear power amplifiers are also easy to distinguish. The front power amplifier has many types of input and output interfaces, but there is no speaker terminal. For the rear power amplifier, the buttons and interfaces on the panel are relatively simple, but they will definitely There are binding posts for connecting speakers. Of course, in a sound system, there may not be only one pre-amplifier and one post-amplifier. If the post-amplifier is mono, two post-amplifiers are required.
HiFi’s pre-amplifier can be divided into active and passive. This source can be understood as a power supply. The active pre-amplifier can amplify, switch, and change the signal through the power supply, while the passive pre-amplifier only relies on the input signal. It only has the effect of adjusting the volume.
3. Combined all-in-one machine
The front and rear power amplifiers are called split power amplifiers, and there is also a combined all-in-one machine.
The so-called all-in-one machine is to put the front-stage circuit and the back-stage circuit in one chassis at the same time, so that it has the functions of two parts of the circuit at the same time. With the rise of digital music, the functions of the all-in-one machine are becoming more and more abundant. All-in-one power amplifiers are also becoming more and more common.
4. Advantages and disadvantages of split type & combined type
The split type front and rear power amplifiers and the integrated all-in-one have their own advantages and disadvantages.
Because the front-end circuit deals with very weak signals, it is very susceptible to electromagnetic interference. The design of the split front and rear stages can completely eliminate the interference of the rear-stage circuit to the front-stage circuit, and allow customers to have more collocations during the purchase process. choose.
However, with the same sound quality, the price of the split type will be more expensive, and it will be more troublesome for friends who cannot match or have limited wallets.
Since the integrated power amplifier has the front and rear circuits in the same chassis, many configurations will generate electromagnetic interference, which will have a certain negative impact on the sound quality, so many audiophiles think that the split type is considered a fever.
But for friends who don't know how to match and want to experience a sound system with a certain sound quality, the all-in-one machine is undoubtedly a very suitable choice.
The basic composition of the listening system and the selection of amplifiers and speakersBasic components of a listening systemFirst, let’s talk about the composition of a complete system. Simply put, it can basically consist of the following three parts:Audio source, amplifier, speakers.Sound sour
What is an AV amplifierThe A (audio) of the AV amplifier represents audio and sound, and the V (video) represents audio and image. Therefore, the AV amplifier is an audio-visual amplifier that combines audio and video signal processing. It emphasizes the atmo
About--Basic knowledge of power amplifiersThe working principle of the power amplifier is actually very simple. Intuitively, it amplifies various sound signals played by the audio source to push the speaker to produce sound. From a technical point of view, a power amplifier is like a current modulat
The Davecl Ceiling Speaker is a high-quality audio solution designed for seamless integration into your ceiling. Featuring an aluminium cone, this speaker delivers clear and crisp sound, making it ideal for both residential and commercial settings. Its sleek design ensures it blends effortlessly wit
When many people hear the word "home theater", they think that they can just put a few speakers at home. But in fact, home theater is not that simple. It is not just about the sound effect, but also includes acoustic design, the number and quality of speakers and other aspects.The basic concept of h
In today's digital age, home theater systems have evolved from simple audio - visual setups to complex, multifunctional entertainment hubs.
In the realm of home theater audio, the pursuit of a truly immersive experience hinges on the meticulous reproduction of every sound detail. Among the key components that contribute to this sonic excellence, the 25mm silk dome tweeter stands out as a crucial element.
In the captivating realm of home theater systems, where every sound detail contributes to an immersive experience, the amplifier stands as the unsung hero.
Davecl Industrial CO., LIMITED
robinwang111
+86 18665912888
+86 18665912888 (whatApp/Wechat)
Room 504, President Commercial Centre, 608 Nathan Road, Mongkok, Kowloon, HK
No.9, Street 4, Xiangmang Xilu South,Qingxi Town, Dongguan, GD, China