I have been doing some serious listening to Danny's Computer transport and its incredibly clean and clear, You can certainly hear a lack of mechanical noise, and a certain smoothness results. But after listening to the Wadia transport with the vintage chips, the same chips as the marantz 94s ect. These early chips are made like the TDA1541 and it shows. These are bigger than the TDA and have the same kind of lower midrange weight and gut gravel in the voice. They are coarser and a little ruff but so real with real flesh and bone, real body, and most impressive...... Dynamics. Its a shame we can not have the best of both worlds. Pictures of Danny working on the computer transport.
If you are struggling to get musicality out of the old Jlsounds board (which it looks like you have) then the new one will be more challenging as IMV it is even more
in the direction you are describing. I have one here ATM, they are super clean and there is a bit of HF edge which I'm not liking, trying to smooth that out .
I think your best option might be to contact Pedja Rogic at Audial and see if he is still selling his USB to simultaneous board. These boards are really good and have full
isolation, reclocking and good clocks. They will sound different to the JL board and I think better WRT musicality. They are also larger and easier to work on.
Unfortunately they are not cheap.
Cheers
Terry