We have successfully tested Duality with the following units:
M-Audio MIDISPORT4X4 (Found to work on Windows but not reliably on Mac)
MOTU Micro Lite
MOTU MIDI Express 128
MOTU MIDI Express XT
We have found that the Emagic AMT8 and Unitor 8 are not suitable for use with Pro Tools running 32 channels of DAW on the console. Running the Duality at 24 channels it will work. With 32 channels there is a rippling effect, DAW controls on the console surface flash their lights on and off in sequence. This is only a problem with ProTools and the HUI protocol, the problem does not show itself using the Mackie Control Protocol. If AMT/Unitor 8 is required for use we recommend splitting the midi connections between 2 units.
The following unit has been tested and found not to work satisfactorily;
The M-Sport 8x8 has been tested and found wanting - we were unable to successfully update Duality software using it. HUI control and Total Recall transfers did work correctly. As a result we can not recommend this unit for use with Duality.