The following are the results of Rightmark Audio Analyzer tests.
Source: iPod nano 7G
ADC: Lynx Studio HILO LT-TB
Computer: 2012 27" iMac
Cables: 1,5m Hosa Pro 3,5mm stereo to dual 3-pin XLR (around 8$)
Loads:
Earsonics SM2
Audio Technica ES7
Beyerdynamic DT880/600