comparison of headphones

The headphones i'm going to compare are the audio technica ATH-M50 and the Beyerdymanic DT 770. The ATH-M50 has a frequency range of 15-28,000 hz which is lower than the DT 770 which has a frequency range of 5-35,000. although this is higher it's very relevant as the average human can only hear up to around 20,000 hz. The ATH-M50 is pretty sensitive but the DT 770 has a better sensitivity and they both have low pressure n the ear to make for comfortable use.