What Is an Amplifier?
An amplifier is a device that amplifies electrical signals, especially in the field of acoustics.
Types of Amplifiers
1. Preamplifier
Preamplifiers switch the input signals of various sound sources such as FM broadcasts and CDs, and adjust the sound quality.
2. Power Amplifier
The power amplifier amplifies the electrical signals sent from the preamplifier and sends them to the speakers. It is also called a main amplifier.
3. Pre-Main Amplifier
This type of amplifier combines the functions of both a preamplifier and a power amplifier, and is very useful for audio purposes.
How to Select an Amplifier
When selecting an amplifier, it is important to keep the following points in mind:
1. Availability of a USB Port
A USB port is necessary to connect a smartphone, digital audio player, or PC to an amplifier.
2. High-Resolution Compatibility
High-resolution is becoming the most important keyword in audio today, and in order to faithfully reproduce its high-quality sound, it is necessary to select a standard that is compatible with it.
3. Whether or Not a DAC Is Installed
A DAC (Digital Analog Converter) is a circuit that converts digital signals input to an amplifier into analog signals for output. This type of DAC is considered optimal for playing back high-resolution sound sources distributed by various media on a PC from which they have been downloaded.
4. Connecting to a Network
If you want to connect to a network like a smartphone or PC, you must choose a Wi-Fi-compatible model. Of course, for wireless use over a short distance, a Bluetooth-compatible model will work fine. Also, by using a model with the AirPray function, you can play content that can be played on your iPhone or iPad over a network.