I had this headache with the Aira line , you can ' t use more than one Asio device at a time , so you have to run their audio into an audio interface , just use ableton to control the MIDI on them and record the audio into tracks from an audio interface . In my case I use the MX 1 as an audio interface with gives me a separate audio inputoutput for each channel on the MX 1 , but most audio interfaces will have at least 2 stereo inputs which should be more than enough for your tr 09 and jx 03 . You will likely be frustrated , as I was by the lack of dedicated outputs per instrument with the tr 09 when the TR 09 is not the audio interface . I am only familiar with the TR 8 so YMMV there ' s workarounds , sort of but IMO kind of a fail in that regard . Edit Finished my coffee . Since you only have 2 machines , the solution is to use the TR 09 as the audio interface , run the JX 03 into the mix in . Yes the TR 09 is going to be the input and output for audio , so if you want to hear anything from your speakers , plug them into your TR 09 . Think of the TR 09 as your sound card now , with added capabilities of a drum machine . I am assuming here that the TR 09 operates similarly to the TR 8 , but no solid reason to think that , so again , try it .