Shenzhen Public Broadcasting manufacturers, smart public broadcasting system equipment constant pressure amplifier

Constant pressure amplifier: common amplifier output impedance is very small, usually 8 ohms, suitable for long-distance transmission. High constant pressure amplifier output signal voltage, suitable for long-distance transmission, and the constant pressure amplifier connected speakers (speaker) installation supporting the matching transformer to buck. In the power enough, a constant pressure amplifier can be connected to a number of loudspeakers for public address system, constant pressure amplifier connected to speakers selected according to their power to determine the algorithm is as follows: constant pressure amplifier power of the connected speaker ≥ total Power * 1.3 (where 1.3 is redundant, that line losses). Its sound quality is not as good as professional amplifier, they are not comparable between, because the two products is completely different application areas, public broadcasting, background music main role is to cover up the noise and create a relaxed and harmonious atmosphere, listening to people if listening intently, it can not identify its source location, volume is small, can create a pleasant atmosphere of music, less power; and professional power amplifier is generally used in Hi-Fi, power is relatively large.