Member of the Trade: FiiO Store Argentina
- Nov 22, 2012
Ah is that what it is? Yeah well they are pretty good at not bleeding that's for sure.
When the bass has high levels of harmonic distortion it's normally perceived as bigger, fuller, bloomier. Shure SRH-1840 for instance has very little bass on frequency response measurements, but has high levels of THD, and it's normally perceived as a warm sounding headphone. HD800S measures similar to HD800 in the bass with respect to frequency response, but according to some sources the newer HD800S has increased levels of THD, and that might help warming the sound.
In very simple terms high levels of harmonic distortion means that if you play a 40Hz tone, you also get a good amount of 80Hz and 120Hz, and this contributes to the warmifing effect.
Play 80Hz, and you'll get good amount of 160Hz and 240Hz, and so on...
Of course, other variables come into play because the sound of a paticular headphone is always a complex matter, but this is something that should be taken in care when trying to understand the headphone's behaviour.