Supra Investment in interconnects and cables in a high fidelity music equipment is about 40 years old and Supra is one of the pioneers. Prior to 1976, a simple power cord with a conductor area of 0,5 mm2 was sufficient, if the hifi was very powerful, then 0,75 mm2 might be considered.Tommy Jenving, an ingenious willful engineer, thought this was not enough to fully take advantage of the amplifier output power and started to design a completely new cable. In 1976, they launched the equivalent to today’s speaker cable Classic 2 x 2.5 mm2 and shook the market up. Supra Cables was the original!