This Sennheiser Orpheus HEV 90 / HE-90 system is in excellent condition and functions flawlessly. Cosmetically, it shows only minor wear, mainly on the delicate chrome surface of the HEV 90—normal for a system of this age. Both units have been fully serviced and tested by the official Sennheiser Orpheus service team. The HE-90 headphones feature new earpads and a refreshed headband, while the HEV 90 amplifier has been thoroughly inspected, revised, and recalibrated for peak performance. This set comes from the later production run of the limited 300-piece series and includes the improved HEV 90 tube amplifier with all late-production optimizations. It also features a Stax Pro terminal, providing compatibility with Stax headphone models.