What are single and double voice coils? Single voice coil: It is wound by a separate voice coil, and the impedance of the single voice coil is fixed. Dual voice coil: Two independent voice coil windings, the dual voice coil can be connected to various impedances. Single voice coil has better control The driving power

What are the mixer level settings? The level in the mixer refers to the power, intensity and amplitude of the audio signal, and is an important indicator of the size and quality of the audio signal. In the mixer, the level plays the role of controlling and adjusting the volume and quality of the audio

During stage performances, the most fearful thing is the noise from the stage lighting and sound! This is a very vexing problem. The noise generated by a sound system is not the same. It may come from many aspects. The sound engineer should analyze and judge the more complex situations and deal with them respectively.