Harry,
I recommend the CH Acoustic X20 power cords, they're my reference.
The CH Acoustic X15 power cord is also known as the Running Springs top-of-the-line HZ Crown Jewel.
You can read my review of the X15 power cords that I started with before upgrading to the X20 power cords here: http://forum.audiogon.com/cgi-bin/fr.pl?rcabl&1282568800&openmine&zzKrell_man&4&5#Krell_man
Chuck
I recommend the CH Acoustic X20 power cords, they're my reference.
The CH Acoustic X15 power cord is also known as the Running Springs top-of-the-line HZ Crown Jewel.
You can read my review of the X15 power cords that I started with before upgrading to the X20 power cords here: http://forum.audiogon.com/cgi-bin/fr.pl?rcabl&1282568800&openmine&zzKrell_man&4&5#Krell_man
Chuck