1 pair of good interconnects- which 2 components should I use them on?


Hi all,
I just picked up a set of 3' BlueJean LC-1 interconnects, which are much nicer than the others I currently have. Im wondering if they would be most valuable used between the phono preamp (Cambridge Azur 551p)---->tube Preamp (Cary AE-3) or should they be used to go from the Cary preamp---->McIntosh 2125 amp?

maybe this is a stupid question, but 2 fundamental things I know are that interconnects matter in the acoustic output, and also the signal output from a Cambridge phono stage vs Cary tube preamp are not the same. So with those things in mind I figured placing the interconnects in one spot vs. the other would matter based on the different output signals of each device.

I could listen to both configurations for a while and eventually gauge if I hear any difference (which probably won't be the case), but I wanted to see if there is a "right answer" first :) 

thanks for any feedback!
hockey4496
Honestly, if a $30 pair of ICs is "much nicer" than all of your others, you should replace them all.  Your components cost several thousand dollars and you should have at least (and I do mean least) something on the level of the BJs to connect everything.  I know that's not your question, but I thought you should know. 
Haha I couldn't agree more, and when I'm out of school and not on such a tight budget I will absolutely invest in better interconnects. But for the time being (another couple of years) I'll have to live with what I've got...
My dealer always told me to upgrade your system at the "source". Get the source sounding as good as possible then move through the "chain". 

N