PS Direct Stream Vs. Lumin X 1 Sound quality difference?

I haven't heard either but I think I remember seeing a post from someone who had owned both and thought the X1 was big step up.  It should be at double the cost, right?

If you search the forum you can probably find it.  Maybe it was in the Bartok v X1 thread, as I'm interested in Bartok and have been following those threads, but I can't remember for sure.

So Ozzy, can you estimate how much better X1 is now than the Directstream dac?

is it night and day?  Or is it clearly better but not mind blowingly so?