Thanks for detailed reply. Comparing to your opinions regarding how it sounds, I find idsd micro black a bit linear not that much analog or tuby sound, also detailed. And I haven't noticed any distortion to the date since two years. If D5 is more linear, might be better to head to another DAC then for me. Maybe RME because of EQ features but that's another story. It's doubled price of D5 and I don't know whether it worths to invest $1k in a DAC while there is topping and smsl offerings as well. The important thing on D5 is ES9038PRO chip that I've never heard of. Still, no idea how it'll sound if I pair it to one of my electrostatic amps. Wish I had a chance to listen to before purchase.