CNET has some choice words for the $4,500 Woo Audio WES amplifier and the $2,410 Stax SR-007Mk2 headphone combo -- namely, it's the world's best headphone sound money can buy. Far be it for us to argue, but given the steep cost of entry, we'll also be hard pressed to find out for ourselves. Needless to say, only the purest of audiophiles need apply -- we'll be sticking to working out our mixtapes with aurally subpar three-figure ear pieces, thank you very much.Filed under: Home Entertainment