Originally Posted by InnerSpace
If you're short of cash and prioritizing bang for the buck, remember that a power cord has no real-time role in your amp's performance. (Your amp will work without any power cord - you can prove this by letting it play for a few minutes, and then disconnecting. The amp will play on with no loss of previous fidelity for a few seconds, until the power supply capacitors empty out.) The power cord is there to top up those capacitors as needed, that's all. Anything electrically conductive and rated for the right current and voltage will work just fine.
Equally your amp has a beefy and well-regulated power supply, so "cleaning" the power on its way from the wall is superfluous. Like bringing cooked food into a chef's kitchen. The Woo doesn't need PS's help, frankly. It's fine on its own.
So spend your $$ on tubes. That's where the action is. Try rolling the 6ED7s first, and the rectifier later.
The amp still needs a power cord to put power in the capacitors, and power cords can let in interference and the interference will then go with the power into the capacitors
, power cord wise id recommend something cheap and shielded you really don't need a cord with massive 8 gauge cores.
I do agree that av power centre looks like a waste of money, unless you have really bad hissing or humming from the amp, a good cheaper alternative is the Tacima SC5723 Mains Interferance Conditioner it's around £30 and has surge and spike protection.
Does the sound from the amp have hissing or anything that would indicate interference getting in though the power?, if no then upgrade the tubes first , if there is hissing present from the amp then get a sheilded power cord and a power conditioner first.