Ferrum OOR and HYPSOS Review and Measurements
The Ferrum OOR is a terrific amplifier offering many unique design aspects, features, and huge amounts of power, all within a sleek and compact form factor.
The Ferrum OOR is a terrific amplifier offering many unique design aspects, features, and huge amounts of power, all within a sleek and compact form factor.
The Zähl HM1 might just be the very best headphone amplifier I’ve come across. It’s incredible in so many ways, but not easy to get ahold of