A real vintage treasure, this Jantzen Wax Coil is made from 99.9998% pure copper 8AWG ribbons hardened with a polymolecular paraffin wax. This technique has been developed by Jantzen Audio in such a way that it does not contain any air pockets in order to have a very advantageous tolerance. The result is a rock-solid, vibration-free coil. Each coil is individually tested with the Clio system.