Quote: Originally Posted by leyleq @BenPi I tested both on rockbox and original firmware. The results were same. Sound is distorted but i get used to it. Don't expect for help from here because as you can see from older posts, i think they don't have a good ear to understand the...

Hi guys! Well I have the exact same problem here. I just bought a pair of UM1 and they sound incredibly bad on my iRiver H320. The mids are somewhat muffed when I play any song with them on my H320. But they sound perfectly on my computer or any other audio system I own. And I use...