The Parthenon Cu-X2 Core, is a tremendous increase in performance over the original Limited Edition Parthenon. The Cu-X2 Core is based around a multitude of Electro-Harmonic Pulse Treated, Pure 100% virgin OFC Copper conductors that are Core-Heated, reverse counter spun and specific differential tension wound to ensure ultimate accuracy and rate of transfer, pure copper point to point, implementing FURUTECH Pure Copper Plug and IEC for overall harmonic consistency. Each individual conductor is designed and crafted to internally produce far less heat which therefore allows for far greater performance. The Cu-X2’s copper foundation has been annealed specific to remove all iron and lead contaminants and impurities for the purest possible conductive copper. Given its ultra-high current capabilities, the X2 Core has the distinct ability to move current with the lowest possible restrictive properties allowing for a much more seamless and focused transfer of a/c power therefore drastically increasing dynamics, definition, soundstage and imaging. Maintaining specific sized balanced multi-conductive materials, not only increases overall speed but also reduces the noise floor beyond what was achieved with the original Parthenon lending a significant increase in air and transparency. Low end harmonics speed are represented with perfect body and weight while midrange and high frequencies become much more level balanced and highly accurate. Extremely fluid and smooth, the Parthenon Cu-X2 Core is in a class all its own, providing perfect separation and exact tonal definition due to its virtually zero core energy loss. When EMI and RF rejection are a concern, the Parthenon Cu-X2 Core maintains eight varying sectors of insulation to eliminate noise and helps the cable itself to filter unwanted negative internal vibrations and noise from the a/c path making the Parthenon Cu-X2 Core as pure as possible.