The different positions of the amplified speakers would directly affect their sound balance, depth of the sound field, deep bass effect and sound quality of midrange. The correct placement method is to greatly and symmetrically adjust the position of the amplified speakers with the listener as the center, and then to finely tune them until the sound is smooth, soft and natural.
As humans are the main listeners, the placement of amplified speakers is naturally closely related to the location of listeners. Generally, listeners should be on the vertical bisector of the connection line of two amplified speakers, and the distance between listeners and amplified speakers should be larger than the distance between two amplified speakers. The distance between the two amplified speakers should be more than 1 m~1.5 m despite of various rooms. If they are directly put on both sides of the audio equipment, the distance between them is obviously too small and the sound field would be too narrow. Also, the ears of listeners are too close to the amplified speakers. As a result, what the listeners hear is mainly direct sound, supplemented by the reflected sound by the wall. Given that the ordinary amplified speakers adopts passive frequency division and the frequency division network contains capacitors, the high/low sound drive units have 90 degree phase difference. Theoretically, the sound generated by the two drive units is not synchronous. This effect is more significant as the closer the distance between listeners and amplified speakers, but it is normally difficult to notice. In addition, if the amplified speakers are too close to each other, the high and low sounds can be clearly heard from two different drive units, and the timbre is not natural and harmonious. If an appropriate distance between listeners and amplified speakers can be kept, the directly heard sound and the reflected sound can be effectively integrated, the width and depth of the sound field can be truly felt, and the sound heard is softer and more natural.