Which of these power cords ?


I'm looking to upgrade my sound with upgraded power cords. Given I've got a tube preamp, 2 mono block tube amps, Aurender DAC and 2 Martin Logan speakers - we're talking up to 7 power cords so I'd like to keep the total cost for all of them to $1000ish. 

And some suggest going with one brand, to get the biggest benefit.

Brands on short list include:
Suggestions?

cdc2
For the budget you are looking at I would suggest either the Shunyata Venom or the DH Labs power cords. Besides both being well constructed these are good choices because DH Labs are very available and often available new at a discount. Cable Co is having a 20% off special on DH Labs power cables. Shunyata Venoms are very available on the used market. I am taking about the just replaced Venom line. Not the V2 Venom line. 
You can't believe everything people tell you - not even if those people are your own brain.
Can't go wrong with DH Labs pc's, I agree with stereo5, The Pangea pc's dulled everything I tried it with.