Piranha Classics are seriously good cables. The two enemies - capacitance change and electromagnetic interference - are a challenge to the performance of cables which, by nature of their job, have to carry very low signal levels. Even handling a cable can cause noise. The Classic has had these problems designed away and they are as near as possible, immune to hum and crackle. Made from high quality polyamide sheathed cable with multistrand oxygen free, non-crackle copper cores and genuine Neutrik metal connectors.