Wood was also considered a sign of quality and would help establish HIFIMAN HE5 as a higher - end headphone .
To avoid the high cost of tooling and because quantities were small in those days , it was decided to make HE5 's ear cups out of wood .
Wood was also considered a sign of quality and would help establish HE5   as a higher - end headphone .
To avoid the high cost of tooling and because quantities were small in those days , it was decided to make HE5 's ear cups out of wood .