Luxman 509x vs. Gryphon Diablo 120

[eziggy]

I currently have the Impression 11As paired with a MC452. I have been searching for a good 2ch preamp and realized I may want the simplicity of an integrated for now.

Locked down my choices to the Luxman 509x, which everyone raves about, and more recently the Gryphon Diablo 120. I listen to almost all types of music, but jazz and classical are two that top the list. One of the main things I am looking for is the depth, clarity, and separation of vocals and instruments but be able to listen for while without fatigue.

Anyone have experience with the 509x or the Diablo 120 with MLs?

Thanks!