Here's what the most expensive headphones in the world sound like

LAS VEGAS — It's not every day that you get to try out a pair of $55,000 headphones, Sennheiser's ultra-high-end "Orpheus" HE 1. But on Friday, I got to test an even more expensive pair: Onkyo's $100,000 diamond-studded headphones — and I (almost) got to directly compare the two. 

Of course, other than the exorbitant price, there's really no comparison: These two headphones are as different as they come. But that's how my cards fell on Friday; a meeting with Onkyo was set up just before the meeting on Sennheiser, so I tried to make the most of it.