Ted I think the one I have does dsd direct without the dop. And the higher PCM as well. It is avalible , but not as an upgrade inwas told it's a whole new board inside. Inwas wondering if it might be the reason I hear it differently. . The original only does dsd 64 the new one goes to dsd 128.
Go to the website and look.
The website seems very clear on what the SE (special edition) is; it goes to 24/384k...which ipsofacto means it can handle DSD128 via DoP. The "regular" ones go to 24/192k, so they can do DSD64 via DoP (which requires a 24/176k path). Al, I don't understand, at all, the notion of a USB/SPDIF interface that does "direct" DSD (without DoP)?? It's SPDIF! Moreover, I do not understand the notion of an AP1 or AP2 (all of which do at least 24/192) that doesn't do DoP for DSD64. Can someone tell me where I am wrong here? Why the confusion?