has anyone tried ps audio power cords on subs

STEALTH works great.

yes. i tried the ac-3, ac-5 and ac-10 on my velodyne dd12. could not tell any difference so i went with the ac-3. could tell a difference upgrading from OEM but after that.....nothing.

i will note that my sub is used at a very low level. volume is set at 10 (on a scale of 99) and cut-off is 58. i could see a system using more sub to show a difference with different pc's.

cheers

Yep I tried one on my Art of Sound sub. Nothing special. Save your money, the Shunyata Venom works better than anything I've tried with my sub.

I have two of the ones Eric mentioned as well as two Statement ones and have used them on my REL Stadium subs with very good results