Which amp to match the Ultra?

[Mr Ee]

I think I'm going to try an external DAC first. Probably that will be a Fosi Audio ZD3 (it has all the bells and whistles) but I'm not sure yet.

Seems you're not the only one out there wondering about this combo (ultra, fosi zd3 and za3), and if it zd3 in the middle is beneficial.
Looks like you'll be needing some more interconnects too
Let us know!