hello pose this question to Steve Huntley at Great Northern Sound Company he modifies Audio Aero players he would know the answer. Why are you so interested if the digital section is exactly the same? If I may ask? are you aware of the Audio Aero Prima Mark 2 D/A converter? It has the same exact digital and tube output stage as the Capitol 2 does. Sounds like you intend to use another transport instead of the complete Capitol player is this correct?