Hi
i started with 2 RA yello power kords over 10 years ago,used with arcam cd 7se cd player and arcam alpha 9 amp.the cables were approx £30 each,immediately there was a perceived difference,did i prefer the perceived difference? yes so i kept them.
i don`t believe that a £60 upgrade of either the cdp or amp would have attained better perceived difference of sound,or that giving £60 to agroup of scientists research fund or otherwise would have given a better perceived difference of what i thought i was hearing from the loud speakers.
i have in the past few years changed cdp to MF xray v8 (amazing difference to arcam) and the alpha nine amp exchanged under warranty and a few quid extra for Arcam A85 amp also much better .
recently changed yello cables for RA classic power cables £70 for two ...bargain!,better/more detail and timing,music recordings seems to be played at the pace tempo that the style of music playing,each recording has more individual character.
i did change back and forth to compare yello to classic and my unqualified self as a scientist preferred the classic cable used with the equipment mentioned and also more importantly the music lover that yearns for realistic and natural music play back preferred the perceived difference as well.double bargain,tell em it`s a two for one sale...step right up`!.
by better i mean more like what music should sound like from my subjective view,i play guitar,mandolin and bodran drum as well as tinker on keyboards fiddle etc (not to a professional standard unfortunately but have had some positive comments.
i am not a scientist but would like to think i have a little more than the average mind when it comes to be analytical,discriminating fussy and hard to please.like some scientists i have met.
a couple of months ago got my hands on second hand RA reference power kord with watt gate 320i,plus a silencer block plus reference 16 amp cable for that,still quite alot second hand but now my perceived experience of my hifi music play back is satisfying and enjoyable,i won`t be employing a group of scientists to prove this to you as i know whatbrand of chocolate i like without an explaination as to why.it`s a very subjective view that lacks inherent existence and is merely imputed upon subject/object by my mind...i hope this helps.
oh yes...to answer your original question YES the perceived performance of the cables will fluctuate but will improve over a week or two (gives you 46 days approx to decide whether or not to keep them)
:cheers: