Constant voltage and constant resistance of horn speakers are different in output form:
1. Constant voltage is not a constant voltage, but the output form is constant voltage, which requires a certain rated voltage of the load. The constant-voltage power amplifier is connected in parallel with multiple constant-voltage speakers, as long as the total power does not exceed the total power of the constant-voltage power amplifier.
2. The constant resistance power amplifier requires a certain output load resistance. In a constant resistance power amplifier, if the load impedance changes, the power changes accordingly. 8 ohm 100W constant resistance power amplifier connected to 4 ohm becomes close to 200W.
2. Meaning:
1. The simple understanding of constant voltage PA Amplifier is that the voltage is used to drive the speaker. The characteristics are that the output voltage is large and the current is small.
Second, the constant resistance power amplifier is our general household av power amplifier. The characteristics of the current to drive the speaker is that the current is large and the voltage is small. Now we can understand why the constant resistance power amplifier is connected to the constant pressure speaker, and the sound is very small, even inaudible.
