Sennheiser Orpheus -HEV90 headphone amplifier-
The classic and rare to find Sennheiser Orpheus was manufactured in a limited number of 300 units. Over the years the Orpheus has become a sought after “collectors item”. This Orpheus consists of only the HEV90 tube headphone amplifier and does not come with the electrostatic headphones. The HEV90 can be used with several Sennheiser (for example the HE60 or HE90) and Stax headphones.
The amplifier has an excellent DAC onboard, therefore it can also be used with digital sources. From a performance perspective still among the very best out there. Price: 8.500 euro.