@dwest1023 ..known for long break in periods. However, after a week my ears could no longer take the harshness
+1 @ghdprentice
Agree, and I own three pairs of Cardas Clear Reflection interconnects, Clear for Digital, and Cross for speaker cables. None of them harsh, at all Quite the opposite in fact. After 35 years with Cardas, never heard anyone report "harshness". IF they are truly authentic Cardas cables, something else is going on there.
It is regularly stated by Cardas and well known by Cardas owners they need to be left in place and played for 21-30 days... dielectric cable tension, static electricity, all released by then. If there is any question about this, contact Cardas for more information. They might even ask you to send them in for inspection btw.
Enjoy your new cables in any case! Please let us know when you put the Cardas up for sale somewhere - post photos of cables, certificates, boxes when you do.