BEST AC CORD UNDER 1000?

ABSOLUTELY THE ABSOLUTE POWER CORD!
For $39.95 it has the competition running for cover!

PSC Audio Pure Silver. Not really cheap, but the results are there. I've tried MIT, Stealth, XLO, Harmonic Tech and, of course, the stock Wonder Cable that comes with most gear. The PSC Audio Silver Power makes musical attacts and fast transients faster and more articulate. For example, finger snaps sound more startling and leading edges of cymbals are more crisp. I've also noticed bass overhang is reduced with this cable, but deep bass has more tone. My only explaination for the improvements is the lack of resistance in the cable alloy. It's worked well in my system.

There are a whole lot of snake oil salesman in the power cord market. Most of these cords are made from cheap parts, and then hand assembled. There are a few companies like Shunyata and Electra Glide that actually are using novel designs that almost seem to justify their prices. Be careful before you lay down $1K and make sure you're getting something that really works for you.

bought a black mamba, and honestly there is not much different, yes there is an improvement on the bass and highs (probably 5-10 percent only), but it doesnt perform as good as the reviews here.

Dynamics, sorry to hear that you didn't get enough bang for the buck. One of the problems with getting the maximum out of any system is the difficulty in trying lots of different brands, and finding the power cord or cable that is most compatible to your gear. I have been able to audition 3 or 4 different brands at a time, but wish I could set up a dozen different brands (already broken in) to a high end switcher, and narrow down the choices to a select few, then give the final two or three time and scrutiny before choosing. Did you have enough break in time on the Black Mamba?