Pro-Ject Connect It LS DS Speaker CablePremium Audiophile Speaker Cable Stereo Set Made in Europe! The Connect it LS DS speaker cable uses eight 0. 75mm solid core conductors, which minimises signal loss due to the low impedance. Each conductor is made of high purity oxygen free copper (HP OFC) a type of copper that has been specially processed to remove impurities, resulting in higher conductivity. The twisted construction reduces possible interferences and noise picked up during signal