Alex, it was pointed out that the FFT displayed by the AP test gear necessarily includes any jitter associated with the conversion process, which would also appear as sidebands if present. The FFT output is shown to be clean, for a well-performing DAC, down to about -150 dB. If you don't mind me saying, speculating about the internal behaviour of the AP test gear does you no favours.
ETA: I trust that you didn't overlook my questions in post #513 and will answer them shortly.
ETA: I trust that you didn't overlook my questions in post #513 and will answer them shortly.
Roon (Mac Mini), Wilson Benesch Full Circle, Expert 1000 Pro CI, Kaiser Chiara
Warwickshire, UK
