13-Nov-2018, 23:24
The thing to bear in mind is that the pre-out is (probably) not designed to drive a (very) low impedance load. So if you're using it to drive headphones, you'll probably get better results the higher the impedance of the 'phones. For low-impedance 'phones a purpose-built headphone amp will do a better job, as @Womaz said.
Roon (Mac Mini), Wilson Benesch Full Circle, Expert 1000 Pro CI, Kaiser Chiara
Warwickshire, UK