Power cable question.

The best power cords I have ever used were the ones I made using recipes I found on Audioasylum. The cost is relatively low, about $50. The sonic improvement is huge. I had other cords which have all been replaced because the home made were so much better. The removal of grain and bass improvement is obvious. The only real investment on your part is the time.
Purist makes great cable and so does cardas. I have both in my system now.
The PS Audio stuff makes a noticable improvement. I like all their power stuff. If you can, get some power ports and run a dedicated line or two for you system. I thought it was snake oil, but the power stuff really works!!!

The Asylum cords have worked well in my dedicated headphone system (see www.diycable.com for kits and assembled versions). Either these or used cords here on Audiogon should have a positive effect (tighter bass and cleaner highs). I use Silver Audio Power Burst cords in my main system only because they were the first I tried and I was happy with them. I have also been happy with the Ultimate Outlet (blacker background around music). Having a dedicated UO for digital equipment and another UO for the rest is yet another jump in clarity that PS Audio recommends and that for me was worth the cost.

Nobody has mentioned JPS Labs Power AC. I like it a lot and there are some favourable reviews at Soundstage also.
I found that the Harmonic Tech AC-11 sounded completely different in my system than the JPS Labs. All the power cables do have a different character. I tried the 15amp (stock) cord that came with the PS Audio P300 on my amp, and it improved the bass tremendously but, it was sour in the treble. So I don't think it's true that just any cheap cord will automagically give you a perfectly satisfying sound, unfortunately you still have to find the right one just like with other wires.

The JPS costs half the amount of his amplifier. Try the Voltex first.

steve

I've tried the stock cords, hospital grade cords, a $1000 retail cord and a power 2 from virtual dynamics. I was very impressed with the virtual dynamics. It gave a much more realistic sound. Available at a discount from list price and with a trial period of 60 days. Their power 3 is also available for $75 in a cryo version (what some people charge for the cryo procedure) and also with a trial period. I would recommend these are a must listen. Before this power cord I did not realize how much difference a power cord could make.