Interconnects - better before preamp or after preamp?

The signal is as good as it gets AFTER it leaves the source.

Keeping with audiophool philosophy-wouldn't it make sense to attempt in keeping it that way at least to the preamp? 

How does a "better" cable improve it after the pre? Must be nothing more than a tone control and wallet depletion device.

Op, you’re going to get responses all over the map. Do yourself a favor and figure out for yourself what works best in your system. Find a company that has cables you are interested in and have a return policy, buy 2 of the same cables and put them in your system before and after, listen and assess. Then swap in your lower end cable before, listen and assess; and likewise after. Your system, your ears, your assessment, return one better cable if you don’t think it matters to have 2 better cables on both ends. Easy peasy

Personally I'd get the best and use the same from source to pre and then pre to amp(s).

@noromance +1 — IME the interconnects that make the most difference are closer to the source.  I used to use silver interconnects from my DAC to preamp and then copper from my pre to the amp.  Didn’t work nearly as well the other way ‘round.  

If you have a World class preamp, is there a need to go nuts buying some really nice cables before the Signal reaches the preamp?. Let the preamp do its thing and then provide Royal treatment for Signal‘s Journey to the amplifier.

It only seems logical to me that you would want the signal arriving to that fantastic preamp in the most pristine condition as possible. And it also only seems logical to me that you would want the signal leaving that great pre in the same condition.

That could just be me, however.