Ac cords or power conditioning first?

i dont have any exp. with other mfgs. but i started with a ps audio power director, then moved on to cords , most recently the perfect wave line, and ran that through a power port wall outlet. as a reformed cable doubter i can say now without a doubt that it does improve upon the sound. i will also note that i started out with pretty clean power to start with.hope this helps.

excuse me..what is the mean of "dedicated line".

Gmahler2u, dedicated line is one power source from your electrical panel directly to one outlet. Nothing else shares this line in the house. Look at the isolation transformers too. Hospital grade Tripp-Lite transformers. I have two dedicated lines but still use these coming off the two lines. Re-generators may be better but I could not afford to keep the Exact Power EP15 that was loaned to me. If I could not run dedicated lines and had to start all over it would be transformer or re-generator, Oyaide outlet and then power cord. The power conditoners I used dulled or closed the sound. The transfomers also have surge protection.

One more Jp1208. I just got power strip call "Noise Trapper" and I use it as audio dedicated line. Is this as isolated power line?

Thanks for your input

Harmonic transients are going to pass through a power strip. Usually will not stop ground loop like a transformer can. If you can afford power regulation or regeneration with a good isolation transformer then go that route but I think for the money these Tripp-Lites are a good buy. I also have a Kleen-Line isolation/regulation transformer that I use on the T.V. and cable box etc..
Side note: I have two JL Audio F113's and they are plugged directly into the wall of course.