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Preamplifiers are also known as pre-amplifiers, which improve the quality of your sound. So what exactly is the preamplifier, how special is its role. Let’s learn it with Tnhelearning.edu.vn today!
What is a preamplifier? The role of the Preamplifier
Preamplifier (abbreviation: Preamp) is a preamplifier, usually located close to the sensor and plays an important role in a hi-fi audio system.
The received sound is considered as a signal that carries a lot of noise and is noisy. The preamplifier is where these input signals are received , converting the weak input signal to a strong enough output signal, resulting in a “cleaner” sound by eliminating noise and noise. Then, these output signals continue to be processed by other electronic devices in the sound system and produce the best sound quality.
So what operations can you do on the preamplifier? For example, in an audio circuit, the signal from your microphone is too weak, then you will need a preamp to boost the voltage to get loud enough. Besides, a few other operations you can perform such as: select the sound source, adjust the volume, adjust the timbre, …
Some of the most popular and widely used Preamlifier types today
There are two common types of preamplifiers : Clean Preamplifier and Color Preamplifier . They make the sound better by adding harmonics during signal conversion.
Clean Preamplifier
A clean preamp takes input signals and enhances them significantly. Clean preamp performs signal conversion cleanly and accurately, with as few colors as possible. Basically, the sound after being processed by a clean Preamp will be a true, clean sound, without buzzing, noise and strong enough to continue to go through other processing devices.
Color Preamplifier
The color preamp converts the signal by introducing some form of distortion through the electronics or transformer. This harmonic enhances the sound quality and makes them better, with a sweeter timbre . A signal enhanced with a color preamplifier allows it to find its place in the audio mix more easily than a signal enhanced with a clean preamp.
Instructions on how to choose the right and best Preamplifier
When considering buying any electronic device, choosing based on specifications will be the most objective choice. To choose the right Preamplifier, consider a few specifications below:
Number of channels
Two-channel, four-channel, eight-channel or multi-channel preamp can be your choice. Nowadays, preamps are equipped with a diverse number of channels, so consider the number of channels you need for a preamp.
Preamplifier Type
Preamplifier has two types as mentioned above
- Tube and PET preamp : usually color preamplifer.
- Clean preamplifier: usually designed in solid-state model (no transformer).
Maximum gain
Condenser microphones (high-sensitivity, condenser microphones) will work well with preamps capable of 30dB – 50dB gain. Low-power, high-impedance microphones like old dynamic and ribbon microphones typically require higher gain, around 50dB – 70dB.
Inline handling
In modern devices, the preamplifier also comes with an EQ and a compressor. These devices are really handy so that the channel strips can create their own unique character, giving you the best sound quality.
Input/Output port Input/Output
This stands for Input/Output, which is referred to as Input/Output. You need to consider this factor to make sure that your devices are compatible and can be connected to the preamp.
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