Designed 25 years ago and limited to 300 units, the Sennheiser Orpheus HE90 headphones are the holy grail of the audiophile world, and cost a whopping $16,000 USD at the time. Now, Sennheiser has managed to one-up itself with new Orpheus headphones in both quality, performance and price, with the new headset costing an eye-watering $55,000 USD. Developed over the past decade, the Orpheus improves upon its predecessor’s electrostatic design with a new signal processor, a case hewn from a solid block of Carrara marble, and motorized knobs and dials that only appear when you turn it on. A pair of Cool Class A MOSFET amps have also been built into the ear cups to eliminate the reactance of the cable and deliver a dynamic range of 8 Hz to more than 100 kHz, as well as the lowest distortion ever measured in a sound reproduction system. Available next year, be ready to shell out the equivalent of a family wagon for this next-level audio experience.