Originally Posted by kstuart
Actually that is an unscientific viewpoint.
Whether or not any particular change in your system is audible has absolutely nothing to do with the price. If Sennheiser charged $18,000 for their HD800 headphones, they would be precisely as good (or not) as they are at $1,800. Or if they charged $180 for the HD800, they would still be exactly the same, sound-wise.
Coincidentally, people today are criticizing Sennheiser for pricing their new balanced headphone cable at $240 - http://en-us.sennheiser.com/ch-650-s
How about if Sennheiser painted there HD800's white, and said that reflecting light caused them to run cooler, thus producing a better sound, and then charged $18,000 for them?
Power is power. Changing the last few feet of a 60 foot run from a breaker is going to do nothing with respect to how clean it is. It's just steeling from people.
At least the red cable in the above post provides some functionality over stock (lighter, more flexible, pretty). This power cable provides nothing over a $10 option.