“ (science guys feel free to ignore this review. Thanks) As most people know by now, I've always disliked most Sennheiser headphones. They're not bad, but the sound from the HD-600 and HD-650 just doesn't engage me and is not that fun. They're not clear enough, don't have enough detail or treble or are muffled. I previously had the HD-650 and HD-600 twice with various amps. The...” --tdockweiler
ZXAC "Lightning" cable made out of ALO SXC wire.