Just bought a 15' extension for my Sen 580's off fleabay. It will have a 1/4" G&H RF2P-BGG male and an Neutrik NJ3FC6-BAG 1/4" locking female connector. I thought L4E6S was more of a "Pro-Style" microphone & guitar/amp cable but I bought it anyway because of the price($36). Any sound quality change using it for a headphone extension? Also, are these connectors overkill for this Canare cable?