Will a RCA to RCA adapter hurt the sound?

thks guys= Yes these are line levels from my preamp to my amp- Just extending one meter- Really do not want to take full rack apart move everything then try it and it does not sound right- anyone know which adapter I should get- Does cardas make an rca/rca-??-thanks for all the help---

thanks- I was able to move things around without having to use the adapter- thank you all for your help!!!