Tube vs. solid state electronics
No one will ever settle this question, since both solutions have advantages in different areas. Either tubes or transistors can be truly excellent when the circuit is done carefully with the highest quality components available.
The best solid state circuits come close to disappearing. They tend to err in the direction of a faster, more defined, slightly less forgiving sound. The best tube designs approach perfection from the other side, with a sense of transparency and air. People consistently use the term "warmth" when describing tube sound. Tube circuits offer a wider array of options if you are trying to improve the sound, rather than just pass the signal through with no changes.
Digital designs approach the standard set by the analog solid state, but are less forgiving. A harder, closed top end feel often results from the limits set by current technology. Sense of air and soundstaging are usually somewhat compromised.
以上不知引自何處 (忘了)
反正不是偶寫的