Cal Alpha upgrade


Looking at options to improve my digital source (AN CDT-2 transport and Cal Alpha dac). I'm considering a short list of an Audio Logic 24mxl or Audio Aero Prima dac (and I suppose possibly an AN dac). But I guess I've also got the option of going the one box Capitole route. Am using a Music First TVC passive pre, so I don't think I'll be using the analog inputs on a Capitole. Does it all depend on how good the AN transport is compared to that on the Capitole? Any advice or comments appreciated
crapsmash
Well the deed has been done! An AL 24MXL has safely crossed the big pond and will shortly be replacing the Alpha. Must say there's a bit of trepidation at not wanting to lose what I love about the Alpha, but based on the experiences of those who have gone down this exact same route, I'm nervously confident!

Thanks for your replies.
Have you considered upgrading just the transport? IMHO, the potential of the alpha is limited greatly not taking of its 96/24 potential (difference between a 96/24 and non-96/24 feed is night and day) and by quality of transport. I have tried many transports with the alpha, each bringing a little more refinement and wider soundstage than the next, with delta being the worst of them all. Also at least in my setup, the alpha responded dramatically with upgrade in digital cable to madrigal.

Happy listening