Power Cables

bacardi, I would like to know.

Core Power Technologies. These are seriously amazing power cords. I think once you try these in your system your jaw will drop in amazement. You WILL keep them in your system. They have a 50, 150, 300 model. 

Thanks for all the ideas (esp the Mcintosh owners).  I have an MC275 with OEM power cord and looking to upgrade.  Any other thoughts on a good $300-$500 power cable?  Anyone think a certain brand of power cable would influence tube amps or is power=power?  I've decided if I'm spending this kind of money on a system that I am going to ABX test in-home.  I recently did this at a store and compared interconnects at $100 and $450 and speakers at $9K and $16K.  Got it "wrong" on both (not truly wrong - I'm old enough to know I like what I like.  Interesting, but a little-dated article where a well-designed ABX study with a solid n showed 49% got the "correct" answer when looking at Valhalla from Nordost ~$4,000 against some <$100.  Love to hear the counter argument.  This article does give a rationale behind audiophiles vs. non-audiophiles not being able to pick up difference.  This reads like a NEJM study:...http://hometheaterhifi.com/volume_11_4/feature-article-blind-test-power-cords-12-2004.html

@bacardi,  Very interesting; the Equi=Core 50, 150, and 300 models are rated in watts. I assume this relates to the transformer box.
How do you choose a cable for low-current components based on watts?

I can only say that I have a 150 on my subwoofer(Rel G1) that I can't take off. I do have an Equi=Core 300 from my dedicated 20amp Furutech GTX-D rodium wall outlet to my 6 receptacle line outlet that everything in my system plugs into. I am awaiting two more 150's for the rest of my components.