1. Various brands of speakers (speakers) also have the characteristics and characteristics of sound release. Due to the differences in design concepts, manufacturing materials, application positioning, and product costs, each brand's speakers (speakers) have their own repayment characteristics and characteristics. Therefore, they must be clear about their specific scope of applications. For example, some brand models have a narrow -end high end, bright, clear, and low sensitivity, and the horizontal direction is wide. Such products are more suitable for the language expansion of the small and medium hall conferences; It is very wide, the ranging response is relatively smooth, the transient characteristics are good, the phase distortion and the vocal staining are very small, and there are many directional angles. Such products are more suitable as a music program to repay the sound expansion. The high -frequency unit has a large power, with a narrow level and vertical direction characteristics. Such products are more suitable as a long -range sound expansion projection.

2. The sound quality and sound of repayment. Different brands and types of speakers (speakers) each have their own repayment of their own personality, so they must be clear about the sound quality and sound of various brands of speakers (speakers), such as clear and turbid; some are bright, some, some Darkness; some maintain the original flavor, and some change the flavor. Therefore, it is impossible to be applicable to the A brand, and the brand B is also applicable. The selection of the speaker (speaker) is determined by the objective environmental conditions of the site, the investment of the construction unit, and the characteristics of the source of the program source.

3. Adaptability and subjective hearing of different program sources. Different brand type speakers (speakers) will have different adaptability to different programs, produce different subjective sense of hearing. Choose a product suitable for a certain type of program source to return, and will obtain a better listening prerequisite, and after debugging, it will get a better sound return effect. Therefore, the author does not agree with the actual needs, and subjectively recommends a brand or product product.

4. Frequency response, frequency bandwidth, frequency characteristic curve. The performance quality of the speaker also affects the sound effect and subjective hearing characteristics.