Grey series UP OFC mono grade unbalanced multicore

This range of cables was originally developed for the home and semi-professional recording studio market back in the days when affordable recording devices meant using unbalanced multitrack tape recorders. In today’s digitally dominated market this application has all but disappeared, however these 8 and 16 multicores are increasingly used in industrial applications such as remote sensing and other instrumentation functions. They are extremely flexible and very effectively screened and of course can still be used to carry multiple unbalanced audio signals.

Materials
Van Damme now use a higher purity oxygen free copper for the conductors - Ultra Pure Oxygen Free Copper. The use of this material further improves the ‘solderability’ and conductivity of the conductor resulting in faithful and transparent signal reproduction.

PVC (polyvinyl chloride) is used for the conductor insulation. There are many variant types of PVC used for cable insulation that may exhibit moderate, good or better electrical and mechanical properties. Given that unbalanced audio is a very low voltage signal a low dielectric constant is not a priority as the resistance of the copper itself also limits the transmission length of the signal. The PVC polymers used by Van Damme maximise the flexibility, heat resistance and stress resistance characteristics of PVC to ensure that there is a minimum of insulation ‘shrinkback’ when soldering and a high level of flexibility.

The inner insulated conductor is screened with an ultra fine oxygen free copper lapped spiral and oversheathed in a special PVC composite to maximise flexibility. The cores are clearly numbered along their length and are then laid up with appropriate fillers and jacketed in an anti-kink and anti-abrasion PVC/neoprene compound.