The most important thing is to replace the original cable with a better (matching) one. Otherwise you get a wrong impression of the HE1000's capabilities.
But I can still enjoy it through Hugo and Mojo, and it still sounds great to my ears – despite being spoiled by DAVE.
And, BTW: A well equalized HE1000 will sound better through Hugo and Mojo than an unequalized HE1000 through DAVE, although you'll probably miss the latter's penomenal resolution and depth.
JaZZ, This is from a while back but is your suggestion to replace the HEK original SE or balanced cable?