I would like for versatility to get a headphone cable about 5 feet long and a second XLR extension cable 15 feet long. Currently my amp sits about 15 feet away across the living room and not likely to change that for quite a while. So far in my online searches I have found that Moon Audio sells these 2 cables in copper (Blue Dragon) and silver (Silver Dragon). These would be either $385 or $550. Sure like the lower price of the copper but that blue is hideous with these nice cans! :-) I have looked at Norse and Q but they don't make longer cables or extensions. Any other recommendations? It doesn't have to be high end as I am not convinced that cables make much if any audible difference as long as they are assembled with quality soldering and decent fittings.