9Reader's Score Ferrum ERCO Review Marcus Amplifiers May 6, 2022 2In this feature, Marcus reviews the new €2395 Ferrum ERCO, which is an integrated ES9028PRO DAC and balanced 6.1W capable...
9Reader's Score Ferrum OOR Headphone Amplifier Review Marcus Amplifiers December 23, 2021 0This review covers the Ferrum OOR which is a powerful solid-state headphone amplifier capable of 8W of output power into...