lol yeah I think portable gear is iFi's strength. So if you have mostly portable gear then it all work quite well together.I owned the ifi zen can once and i could plug my hiby r6 pro direct through 4.4mm into the amp and then Sundara with custom 4.4mm cable. Was kinda a great thing everything balanced without bulky XLR.
lol sounds like you need either Zen One Signature or Diablo 2.Anyway back than I wished the zen can had a dac included (and Bluetooth).
But EF499 is cheaper I guess.