Purity Guarantee: This is a simple but true statement. ERSE’s copper coil wire is guaranteed to meet 99.99% purity and is made from virgin CDA 101 oxygen free cathode copper. ERSE guarantees that each product series marked with Purity Guarantee Logo is manufactured with 99.99% pure copper. Extreme high purity means extreme high quality sound.
Many of our competitors claim to offer world class coils, even those in Europe. But when tested in a metallurgic lab ERSE’s purity meets 99.99% while a competitor in Denmark only met 97.1%.
This low purity is equivalent to recycled copper pipe, definitely not audio quality. Imagine your high quality amplifier is connected to about 12 feet of high quality cable which then connects to your speaker. If using our competitor’s coils your high quality amplifier and high quality cable are connected to a low purity coil which contains on average 300 feet of coil wire. This low purity copper coil has just compromised your system and degraded the sound quality.
Source your “Q series” coils from ERSE and be guaranteed that you are getting the purest sound possible with our Purity Guarantee.
The diagram here shows the flow of electrons in two sets of coils hooked up to amp. The system that uses an ERSE’s high purity coil is brighter and quicker.