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http://www.silcom.com/~aludwig/EARS.htm
Vitenskapsmann med pasjon for musikk gjennom HiFi tar for seg ulike emner, i linken hvordan ørene best kan lures av forsterkeri.
Hovedsiden til Ludwig:
http://www.silcom.com/~aludwig/
The subject of sound quality is not at all clear-cut. Even though tube amplifiers have higher measured distortion, a lot of knowledgeable people swear that they sound better. I finally dove into this subject in August 2006. I can clearly hear THD at 0.5% for a pure 440 Hz tone and the type of harmonics produced by a typical solid-state amp; for the type of harmonics produced by a single-ended triode amp I could not detect distortion until it reached a level of 10%. This amazing difference is covered in detail in the section on amplifier distortion. For music samples the difference is not quite as big, but is still quite significant. Many people have come to the conclusion that THD is a terrible way to judge amplifier quality, and I totally agree. Norman Koren, an advocate of tube amplifiers, has posted a very interesting commentary on the subject of distortion and the effect of feedback.
Vitenskapsmann med pasjon for musikk gjennom HiFi tar for seg ulike emner, i linken hvordan ørene best kan lures av forsterkeri.
Hovedsiden til Ludwig:
http://www.silcom.com/~aludwig/
The subject of sound quality is not at all clear-cut. Even though tube amplifiers have higher measured distortion, a lot of knowledgeable people swear that they sound better. I finally dove into this subject in August 2006. I can clearly hear THD at 0.5% for a pure 440 Hz tone and the type of harmonics produced by a typical solid-state amp; for the type of harmonics produced by a single-ended triode amp I could not detect distortion until it reached a level of 10%. This amazing difference is covered in detail in the section on amplifier distortion. For music samples the difference is not quite as big, but is still quite significant. Many people have come to the conclusion that THD is a terrible way to judge amplifier quality, and I totally agree. Norman Koren, an advocate of tube amplifiers, has posted a very interesting commentary on the subject of distortion and the effect of feedback.