As mentioned in my original reply, I utilize a preamp. I would NOT go the Optical Direct route without one. The web browser interface is designed to limit the total volume output. i.e., set it and forget it. This avoids damaging the internals of the Phantom. Setting at 70% is a good starting point.
2 Channel Power / Signal Path: APC H15 → Mistral Audio W-3900 → Custom Roon Server → Silent Angel Bonn N8 → Silent Angel Forester F1 → miniDSP SHD Studio → Mutec MC-3+ USB → TOSLINK Splitter → Devialet Phantom I 108dB (left & right channel)
Headphone iFi Audio Micro iDSD Finale → Grado GS1000i
Headphone iFi Audio Micro iDSD Finale → Grado GS1000i
