Enter the world of power amplifiers and learn some knowledge about power amplifiersDue to the development of society and economy, people pay more and more attention to the quality of life. Among them, the power amplifier is one of the necessary equipment for every family, especially for music enthus

What is a digital power amplifier? What is its circuit principle?Digital amplifiers are a product of the digital age. The conversion process of digital 0 and 1 signals of digital power amplifier is simply understood as it belongs to the category of class D power amplifier. In fact, the class D

HIFI power amplifier and amplifierHIFI power amplifier is the symbol of high-fidelity power amplifier. The amplifying components of the power amplifier are mainly divided into three categories: electronic tubes (tube amplifiers), transistors, and integrate

A Brief Discussion on Tube AmplifierI have been in contact with tube amplifiers for more than ten years. The first one I bought was the Japanese Lux EL34 tube amplifier. Similar to the original audio, it was also out of interest in technology. From then on,

Cause Analysis of Common Faults of Tube-amplifier Power Amplifiers1. The output power becomes smaller and the sound becomes weak1. Power tube agingThe screen current of the power tube can be measured. Use a 100mA DC ammeter, connect the negative test lead to the screen pole, and

The mysterious world of tube amplifiersElectronic tube amplifiers, commonly known as "tube amplifiers", are no strangers to audio enthusiasts. As early as the 1920s and 1930s, electronic tubes have begun to be used inaudiophile equipment, from amplifiers behind