Heir Audio 5.0 .....you are now on your way to heaven. 

Thanks for the reply. A bit of a update.... I contacted Heir Audio and HIFiman with the question of which card balanced or iem for the Shure 535 and the Heir Audio 5.0. They both responded that due to the high impedance of both sets of iems the balanced card is the recommended card for the...

Hello, Considering buying HM-901 but a bit confused about amp cards. Any help would be greatly appreciated. I primarily use Heir Audio 5.0 iems and Shure 535s. I'm basically looking for a recommendation on which amp card I should use. I have read there are volume issues with using the balanced...