Influence of pre-amplifier on frequency divider and speaker(crossover, speaker crossover, bass crossover)There are a total of 17 series of speakers in Audio Note, and the AN-E/SPe He we introduce here is just one of them. The speakers used in the whole series are exactly the s

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

Small knowledge of front and rear amplifiersMany beginners do not understand the difference between the pre-amplifier and the post-amplifier.Today I will explain the difference between the pre-amplifier and the post-amplifier.The professional name of the preamplifier is: "preamplifier".It is the par

What is a pre-amplifier and what is a post-amplifierWhat is an amplifier?Amplifiers, to be precise, are receivers and loudspeakers. English is Receiver, which means to receive audio and video signals and process them to obtain better audio and video effects and output them to video equipment (TV, pr

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