这个是headphone.com上的解释:
How to intrepret the line: Theoretically, the perfectly linear headphone would have no harmonic peaks whatsoever; in practice this is rarely the case. The full poindexter discussion is complex, but the general wisdom is that distortion is less audibly disturbing when the each peak gets smaller as the frequency goes up AND that the second harmonic is not nearly as disturbing as the third.
Generally, it is our experience that tight, clean, articulate-sounding headphones have few harmonic distortion products. Headphones that sound lush (thought to be the even harmonics) or hard and/or grainy (thought to be the odd harmonics) probably have a lot more harmonic distortion. It is our experience, however, that some very good-sounding headphones have a significant amount of harmonic distortion, so it would be wrong to assume that just because there are a lot of distortion products that the headphones sound poorly. It's just not the case. The ears have to be the guide here!
http://www.headphone.com/learnin ... ne-measurements.php |