College】 【weak public address system calculated the output power --- Power By 【China】 weak home network.

<br> design of the system determined by the number of speakers as well as the distribution of power per speaker AMA, you can calculate the loss of power all the speakers (the speaker refers to loss of power is converted to electrical signals in the acoustic signal the speaker of the power consumed) .. .Determine the system output power is required to calculate the loss of power the speaker, together with the power line transmission losses. .<BR> In engineering applications, to accurately calculate the loss power transmission lines is often more difficult, usually based on the length of the actual use to select a broadcast cable transmission line loss factor μ, to calculate the system output power. .<BR> Line transmission system output power = loss coefficient μ × speaker power loss coefficient μ <BR> line transmission loss parameters are usually determined according to schedule. .<BR> <BR> Case: <BR> installed in a residential lawn mushrooms AMAGS-815 outdoor speakers 30 and simulated stone speaker AMARS-215 20, the total loss of power of the speaker 750W, the larger the area, the speaker .The higher the number, the line loss calculation coefficient μ to 1.3, cell broadcast system for the total power: <BR> 751W × 1.3 = 975W <BR> the system total power output required, the system can calculate the required .the number of power amplifiers, power amplifiers by with AMAPA2360360W calculated to be equipped with the system power amplifier number of 3. .<BR>.