The Erco from Polish manufacturer Ferrum Audio is now in its second generation. At once a headphone amplifier (with 6.35 and 4.4mm jack inputs), digital-to-analog converter and digital preamplifier, the Erco 2 sees the conversion stage completely renewed and inside the DSP a new DDF (Dynamic Digital Filtering), with conversion now possible up to 768kHz (PCM) or DSD512 sampling levels. Still priced at €1,795/$1,795/£2,395, the Erco 2 can be rebuilt from an initial Erco for €198/$198, to gain the same improvements and bring even more dynamics to a device in its range. With RCA and XLR interconnect outputs and toslink optical, SPDIF coaxial and USB-C digital inputs, it remains upgradeable on the electrical input side thanks to the addition of the separate Hypsos power supply.
