Upgrade of the original ERCO to ERCO Gen 2 includes:
- firmware based on SERCE software architecture
- I/V stage improvement
- added 768 kHz support (USB only)
- added DSD512 playback
- DSP updated (exactly as in WANDLA):
- MQA decoder and renderer works only for MQA signals
- replaced ESS filter with HQ Apodizing filter
- disabled first-stage filters for high sample rates (≥352.8 kHz)
- improved DAC chip configuration
- changes from firmware v1.0.3 of the original ERCO:
- adjusted signal level to RED BOOK (2V unbal / 4V bal. RMS)
- reduced intermodulation distortion for full-scale signals






![Ferrum ERCO [Gen 2] 3](https://i0.wp.com/headfi.co.nz/wp-content/uploads/2020/07/Ferrum-Erco-3-1.jpg?resize=100%2C100&ssl=1)