A tube amplifier can be considered a type of HIFI power amplifier~~Because the power amplifier tube and circuit are different, it is divided into a tube amplifier and a stone amplifier. The tube amplifier is a tube, and the stone amplifier is a transistor

The tube amplifier is a type of hifi power amplifier. Its principle determines that compared with stone amplifiers (transistor amplifiers), it is slower, consumes more power, and costs more. Due to its small internal resistance, it has stronger thrust under the same power and has serious distortion. However, because it produces even-order harmonic distortion, it sounds unique and has a unique flavor, which is called the taste of bile by audiophiles. It sounds better when listening to human voices

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