I would check with Wayne at Bolder - you will find him very friendly and notably lite on the BS - though as you would hope and expect he believes in the benefits of what he does.
Waynes mods historically have fallen in to two major categories. First, he has done some circuit modification often in the form of minimization with an attendant lowering of noise. Secondly he does a lot of parts optimization - Blackgates etc. Not sure if he does anything with the clock but I would have to believe you will end up with a more stable SPDIF output that you can be sure is 75ohms.
Have not played with the Duets, but all three of the original SBs are 5v not 9v. Sean (chief designer/founder) is very fond of manufacturing efficiency and parts interchangeability so I would check that. He also used a 5v connector that was a little less then mainstream so there may also be a fit issue.
Waynes mods historically have fallen in to two major categories. First, he has done some circuit modification often in the form of minimization with an attendant lowering of noise. Secondly he does a lot of parts optimization - Blackgates etc. Not sure if he does anything with the clock but I would have to believe you will end up with a more stable SPDIF output that you can be sure is 75ohms.
Have not played with the Duets, but all three of the original SBs are 5v not 9v. Sean (chief designer/founder) is very fond of manufacturing efficiency and parts interchangeability so I would check that. He also used a 5v connector that was a little less then mainstream so there may also be a fit issue.