Silver Circle 5.0 se Line Cond. Power cord upgrade

I have a Silver Circle Audio 5.0se line conditioner and outside of SC's own power cords.....I am interested in what others are using on theirs or other good line conditioners. I have a dedicated line with Shunyata outlets and I am looking for a PC that will act almost like a straight line '' gain '' from the wall to the line conditioner. One that will give the cleanest power without any ''tone '' or '' house sound '' added. Let me know what you think or have and thank you in advance.