Audio equipment mainly is the input to the audio output device in general, including product type many, generally can be divided into the following categories: power amplifier, speakers, multimedia console, digital tuning Taiwan, audio sampling card, synthesizer, high frequency speaker, microphone, PC sound, headphones etc., other peripheral audio equipment: Professional microphone series, headphones, sound amplification system etc..
The sound quality is an important standard to determine the quality of audio equipment, including signal-to-noise ratio, sampling number, sampling frequency, total harmonic distortion index of these parameters depends on the quality of audio equipment.
Hope that the above remarks you have some understanding, you are welcome to call advisory.