In 2009 , HiFiMAN released the HM - 801 , marketed as the first true high - end portable music player .
In 2009 , HiFiMAN have continued with the slimline Supermini and the more chunky HM series running up to the top end HM901S .
In 2009 , HiFiMAN released the HM - 801 , marketed as the first true high - end portable music player and have continued with the slimline Supermini and the more chunky HM series running up to the top end HM901S .