Hi there :).
I'm in the market for a medium-range headphone amp and I've been eyeing the NuForce Icon HDP. However, I've seen all the cool stuff said about Audio-GD products so I've started leaning in that direction.
I do have a few questions to you experts in the subject.
The Icon HDP offers the ability to use a linear power supply to it. Should I be on the lookout for a similar device for the Audio-GD amplifier?
One more question: the frequency response kinda worries me. NuForce lists it as 10Hz to 100kHz (-0.5dB). while Audio-GD is just 20Hz to 20KHz. Furthermore, Fiio lists their E17 as 10Hz to 500KHz @32Ω (all the more confusing that they use Ohms in this measurement whereas other mention dB - but I'm not an expert so the relation between the two is still a bit confusing to me).
Thank you Head'Fi'ers! :D.