Best DAC Mac Mini with HUGE soundstage?

True, but all things being equal, some dacs are reported to deal to work better with digital feed from a mac than say a cd player and some present a thin soundstage and others a bigger one.

Anyone have any suggestions?

Get a used Eastern Electric or Metrum Octave.

haven't heard it yet, but in that price range, I'd definitely want to check out the new Schiit Gungnir. I'm using a Wadia 121, which is a slightly above your price point, but not much. I like it a lot.

I use the PS Audio DLIII with my Mac Mini and am happy with it. It's not a new design but for the price they go for now they're a bargain.
Is it the best? It's the best I've heard but my only other dac was a Musical Fidelity X-10V3 which I didn't care for at all.

Hegel HD11