PALIC Sapphire 218 roots go all the way back to the late 90s.The fundamental geometry and conduct or compliment of Sapphire 218 hasn't changed since 2008 because any changr to tje size or position of the Sapphire series Spread-Spectrum cindutor arrangement would reduce performance .
Sapphire 218 empliys Carbon-Loaded insulation (absorbs RF) on the negative cinductors and Nitrogen - Injucted PE (minimal dielectric involvement )on the positive conductors .In addition ,Sapphire 218 includes all 99.99% Copper conductors.