How to understand pre-amplifier and pure post-amplifier1. ConceptThe preamplifier is generally a differential amplifier circuit or a common collector amplifier circuit. It mainly selects the differential mode signal that needs to be amplified from the signal, and it is generall

Power amplifier: front stage, rear stage, pure rear stage, combined typeFor power amplifiers, there is a concept of pre-amplifier, post-amplifier, pure post-amplifier, combined type, etc. Many people can't tell the type of front and back stage power amplifiers, and don't know which one

Characteristics of active speakers and passive speakersActive speakers, that is, from the outside, do not need external power amplifier drivers, and do not need speaker cables. In fact, the post-stage power amplifier is built into the box, and the power cord is directly inserted into the back of the

Active Speakers vs. Passive Speakers: What Are the Benefits of Each?

How should I choose between active speakers and passive speakers?When you buy speakers, you will always be troubled by the type of speakers, that is, what are "active speakers" and "passive speakers"? Today, I will come to solve your doubts for you, so that you can adapt to local conditions and redu

Audio knowledgeFor any audio equipment, no matter home or car audio, the part about signal control is extremely important. In recent years, in the high-end audio industry, especially the so-called Hi-End level system, there is a trend of gradually simplifying the preamplifier to pursue the effect of