I recently bought a couple Roland Boutique devices - a TB-03 and TR-09 (modern hardware VA replicas of the TB-303 and TR-909 respectively). The TR-09 only has one stereo output jack, but the unit promises 10 audio outs when the device is connected via USB. I did that, but in my Sonar Platinum Preferences, under the Audio Devices setup, although the TR-09's input and output ports are listed, they are greyed out and cannot be selected. When I set up an audio track, I cannot choose any of those channels. Does anyone know how to make these Roland Boutique/AIRA USB audio channels work in Sonar? 

When you use ASIO in Windows you can only have one audio interface selected. So I until you select the Roland unit as your audio interface they will remain greyed out.

karhide
When you use ASIO in Windows you can only have one audio interface selected. So I until you select the Roland unit as your audio interface they will remain greyed out.

Ugh! What a ripoff!