Pass Labs X1 or Krell Phantom II


Hello Guys,

I'm waiting for a Krell Evo 402e bought on the web classified from Spain .. it's on the way.
Now I own a Pass Labs X1 preamp and since I have reed Cast cables work very well between Krell units I found a Krell Phantom II preamp with 3 meter Nordost cast cable on another web classified... unfortunately black and not silver like the 402e.
Btw .. what do you think about a change .. does someone thinks it should be an upgrade? .. a step ahead? .. or the extra money wont' be a valid deal? 

Thanks in advance for your opinions and support

Ps: I searched and than bought the Krell Evo 402e to drive my loved Thiel CS 2.4

128x128curio
@ebm 
Thanks for your advice.

@sfstereo & rird
Normal dac -> xlr -> KCT -> cast -> FPB-400cx.

Would these setup ruined the sound quality, or I have to get a Krell dac/processor with CAST too?
Ymlee,

I use an Ayre dac with xlr into evolution 707 >> krell 403E.  It sounds pretty good to my ears.  I have not tried a krell source device with cast output.