Mellowship
500+ Head-Fier
I'm not hearing any hiss with the HDII, don't know what kind of earphones you're planning to use it with but for this kind of price you might as well try it? It's not like you're spending $60 on a DAC or something lol
No hiss also for me with the HD mk2 firmw.D. Even with KZ ZS5v1.
Right now I'm using the Sabaj D1, an old DAC with the PCM2704, and my KZ AS10, and it hisses like crazy, but the sound has those great dynamics of the primitive 2704 chip.