Since I found the PS Audio digital thighs lately I spent some time to see what Paul McGowan says about his DAC. It not that I am on market for DAC (I am interested in Multibit with no filtration or with single-double poll LC or RL filter) but it looks like PS Audio getting ahead of crowd, it is good and it give some since of direction. Here is a multi-paged thread from the PS Audio forums that gives some ideas.
I do not know about the “killer 32-bit DAC with multiple filter choices”. To me the idea of 32-bit DAC sound ether too bogus or too fraudulent but whoever it worth. The caT
"I wish I could score everything for horns." - Richard Wagner. "Our writing equipment takes part in the forming of our thoughts." - Friedrich Nietzsche