Hens, my DAC does reclock the signal, a must in my buying decision.
I think the facts are that the 170i has high jitter as this has been objectively measured.
Where are these measurements? I am not saying the statement isn't true, I just have never read anything published. Your DIP experiment does raise legit questions.
Talking with one reveiwer in the past he mentioned comparing a couple transports, one expensive, one not, while using a DAC that reclocks and could tell no difference.
I talked with Martin Cooper of Wadia early last year, before the i170 was released, and they did have ideas for a separate power supply and the like.
As for those considering an i170, I would just be sure you paired it with a DAC that reclocks the signal.
Brian