Will a good power cable replace the need for a PC?

You will get multiple replies, many will be opposite opinions.

I won't say a power cord will solve the same things that conditioning addresses, but so far I have not heard a power conditioner I liked.

All conditioners I've tried harmed the sound in some way. A couple were very expensive (seven to ten thousand dollars) and hurt dynamics, detail and even compressed the sound stage.

Then again you might hear from a music lover that lives in a high rise and has 100 other people beating on the same electrical service he's tied to and his test concluded that (brand here) conditioner was much preferred.

If you live in a single family home, chances are dedicated lines should be your first line of defense against bad AC.

After that improvement, maybe explore some high end power cables assuming all your equipment is pretty much where you want it.

There are a lots of AC cords on the market and many of them are an audible improvement over stock. That being said, conclusions as to which provide what are dependant on equipment and personal preferences.

Thanks for the reply. I do live in a single family house. What do you mean by "dedicated lines" exactly?

Also, My system unfortunately requires quite a few AC connections. Electrostat speakers don't help the matter. I've sort of decided that I dont really like the component power conditioner I'm using right now because 1. It reduces audio and picture quality 2. requires that all of my devices are connected to one spot 3. doesn't have enough connections for all of my stuff.

Whats the point of a PC anyways if your end result is worse than without it? Ins't the goal to give you BETTER end results?

I can't imagine a power conditioner that reduces a TV picture quality. You conditioner must be having problems!
I do Agree with Albert Porter, that it all depends on your situation. I would think a homeowner would go for dedicated lines 100% of the time.
As Albert mentioned, living in an apt building does not (usually) allow that option.
I also agree the conditioners do help some areas much better than others, and you also lose some thngs that can be viewed either as a loss, or as a change for the better, depending on your system, the room, your needs. They ARE a compromise where if they do what you want, they are wonderful. If they do the opposite.. well.
As for cords alone, as always it is system dependent.
IF you want the least intrusion (you love your current sound) I would only go with trying cords.
If your system sounds a bit congested, (Or you want more clarity) try a conditioner.
I use both, 2 big conditioners, and Pangea power cords on nearly everthing. (except the conditioners, one has a captive cord, the other a 20amp IEC, and Pangea does not make a 20amp IEC end on any cord they make)
One issue i have never seen discussed is buying a system USING a conditioner as a pre buying equipment choice. Thus the equipment audition using the conditioner you like, can and does lead to buying equipment that performs at it's best with a conditioner.
When i auditioned my current Magnepan 3.6s and Bryston amp/preamp I took my conditioner and had the stuff plugged into it at the second long audition, So I actually bought stuff based on an auditione WITH a conditioner I use. (I liked the sound better with it, than without) Worked out great.
And taking a conditioner with you is pretty easy,as just plugging the stuff into it is not as big a hassle as swapping cables etc.