What Is Integrated Amplifier?

- Nov 15, 2018-

Integrated amplifier refers to a constant-voltage amplifier with preamplifier, which can be connected directly to a microphone and other sources without a mixer. The output voltage does not change with the change of the load impedance, that is, the power amplifier whose output audio signal has the same maximum voltage. Due to the deep negative feedback, the output voltage is very stable, and the load connected to the amplifier is within the rated power range. The impact is small. In order to reduce the power loss of the transmission line in long-distance power transmission, an output transformer is needed. The output voltage is mainly 70V, 90V, 120V, etc. The higher the voltage, the smaller the transmission line loss, but the sound quality is not very good due to the use of the output transformer. Generally used in background music systems and cable broadcasting systems, etc.

 

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