I have a few questions about headphone burn-in. - Does the quality of the soundcard/Mediaplayer affect the burn-in process and it's results? - Which is better to use for Burning-in headphones: Analogue sound or Digital sound? - Can I consider 100 hours of burn-in a safe duration for all headphones? or Should it be shorter for low quality headphones and longer for high quality ones? -Is it possible for me to flatten the response of a headphone by just burning in? - Lastly, can I determine how long should I burn-in a pair of headphones by just looking at it's technical specs? (Example: Sensitivity, Impedance, Frequancy response, driver size etc.) Is there anyway for me to flatten the response of a pair of regular headphones?