Power cables for PassLabs preamp and poweramp

WyWires Silver Juice II
Kimber PK10 Gold 
Those are what I use and sound great on both Pass and ModWright.

Congratulations. You'll love the WyWires. Stick with the WyWires and don't look back at the Kimber's. The Kimber's a fine PC but the WyWires digs deeper at both ends, and a wider stage. I use both and had the Kimber's first; very latest PK10 Golds before they renamed it to the PK10 Ascent... pretty sure it's just a re-name of the same cable. Picked up the WyWires when I moved up the ModWright line. Per Dans suggestion I tried the WyWires PC and Daedalus DiDs and am very pleased. Great move.

Those using the stock PCs on their Pass gear don't know what they're missing. Yeah the manual on my Pass amp says there's no improvement using other PCs, and just use the supplied PC. Definitely made a difference on my amp and I have dedicated circuits to my equipment which makes it more noticeable. Enjoy

Henrycai. Have not tried WyWires IC's or speaker cables; only the PC which is a great cable. 

I am so happy with my Clear Day Cables that I use for IC's - both single and balanced, and double shotgun speaker cables with their jumpers I have no desire to look elsewhere. I've compared Clears Days against some heavy hitters from AudioQuest and Kimber. The Clear Days for the money... forget the money; embarrass the big name brands. 

Paul of Clear Days is a great guy to deal with. I use his cables on my system throughout and have no desire to switch them out. They work great on ModWright and Pass gear. Great Cables.

My simple Kimber PK10 Gold made a noticeable improvement on my Pass amp over the stock cable. My stock cable is in the box and that's where it will stay. Actually the Kimber is a fine PC for the money.

Glad to hear the WyWires worked out. Alex makes great cables and my Pass amp as well improved with them. The Silver Juice II  PC was my first WyWires purchase and since then I have added the Silver model balanced IC and speaker cables. They replaced my Clear Day Cables which are great cables for the money. I'm keeping the Clear Days but they will go into another system. WyWires are some of the most open and honest cables I have had in my system. Not saying they are not a little of a tone control but I think they do little to alter things and just get out of the way. With WyWires in my system, my speakers have disappeared better than ever. Flat out, Alex makes great cables and they sound great with Pass and ModWright. Glad to hear another satisfied WyWires user. Companies like Clear Day Cables and WyWires make this hobby fun; honest people with a great product and great to talk too.