At the beginning of the series. CD to preamp (if you only listen to CD (no LP)
The reason is 'garbagein garbage out' IF you put the good wire pre to amp and the modest wire CD to pre, then the modest wire starts out lessening the signal straight away, NEGATING any goodness of the better cable later on in the chain...compared to the other way around.
Putting th good cable first at CD to pre, the quality of the sound is best it can be through the pre, and then it may be lessened a bit by the modest cable.
The real thing IS to try them and see... but the logical way is: better at source.
The reason is 'garbagein garbage out' IF you put the good wire pre to amp and the modest wire CD to pre, then the modest wire starts out lessening the signal straight away, NEGATING any goodness of the better cable later on in the chain...compared to the other way around.
Putting th good cable first at CD to pre, the quality of the sound is best it can be through the pre, and then it may be lessened a bit by the modest cable.
The real thing IS to try them and see... but the logical way is: better at source.