Material, design and engineering - all elements vital for pure signal transfer were technically investigated to provide the ultimate in reproduction quality. ESOTERIC power cord series - Hear everything as it was meant to be through components powered with ESOTERIC's high-end power cords!

Pure conductor / Stressfree annealing technology ESOTERIC power cords incorporate high purity "Stressfree" copper conductors. The material purity of conductors used for critical areas is 7N (99.99999% = 7N-PC7300) copper. This high purity material was originally developed for the semiconductor industry which requires an extremely high level of quality certification, and guarantees 7N purity with less-than-0.01 ppm (parts per million), of metallic impurities. This quality level is maintained by using 'GD-Ms' high precision material analysis technology. The high purity copper wire uses special "Stressfree" annealing technology to minimize distortion of the crystalline structure of the copper, and optimizes the high purity and conductivity of the power path.


  • 7N (99.99999%) Cu conductor material
  • 7N Cu multi-strand core conductor (x2)
  • 4.5 N Cu multi-strand ground line (x1)
  • Polyurethane coat 4N Cu shielding
  • Low dielectric polyolefin-hybrid insulation
  • Ultimate quality power plug / IEC connector
  • Carbon fabric connector sleeve

The 7N-PC7300 is an upgraded version of the 7N-PC7100 and incorporates a newly designed IEC / Wall plug. This plug set features our highest quality platinum + palladium plated beryllium copper contact elements for ultimate conductivity and high mechanical strength that can withstand an 8 kg load. Carbon fabric sleeves are attached to reject RF noise from entering the electric power path. The cable incorporates high purity 7N Cu conductor produced by our Stressfree annealing technology. Polymeric polyolefin-hybrid insulation (made from polyolefin + tungsten, amorphous and carbon powder), provides an extremely low dielectric and high noise absorption capability. The cable jacket is made of UV resistant polyurethane, and final color application is a transparent dark grey.

7N-PC7300 Power Cord
7N-PC7300 Power Cord
687.8 KiB