The Tiffany Carl is speaking of is the TPC-60, long discontinued, but can sometime be found used at about $60.00 to $75.00. The Tiffany sold for a retail price of $179.00 when new. Although not the best AC cord available, it is nearly impossible to beat when considering purchase price. I keep several around for testing at my place, and I have mostly Purist Dominus everywhere in the system.
MY Sidewinder AC cord progress:
This is a demo from the Cable Company. They burned it in for 250 hours, and sent it to me. I plugged my Krell amp into it, and directly into the wall outlet. After a 24 hour settling time, I listened. Very bright, dynamically laid back, zero bass in the bottom two octaves, wide and shallow soundstage (that's a function of the brightness, IMHO). So far, not the best AC cord I've tried with my amp. MORE LATER....