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Originally Posted by jujueye
Well...not sure what you mean there. Typically, tubes are far more linear than ss devices. And a well designed tube amplifier can swing more voltage at it's output than ss designs, which helps portrayal of dynamics better. Tubes are voltage amplifiers, as opposed to ss devices being current amplifiers. Because of this, tubes require less negative feedback to make the circuit linear.
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Well, I could be wrong, but it was my impression that taking the voltage as the audio signal, the input and output of solid state devices are generally closer than those of tubes. The difference the tubes add is what people like about their sound. But I don't claim to be an expert on the subject.
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