I've done this before in other DAW's using hardware input channels, but I am not sure how to do this in Pro Tools ver 8 using busing. I'd like to use the "Synth In A Case" ensemble to process audio. I created an audio track. Created an instance of Reaktor on that track and opened SIAC. I routed audio from another channel to a bus and set that bus to the input of the Track with the SIAC on it. I can see it hitting Reaktor's input meters, but can't hear it in SIAC. It may be the complexity of the ensemble, and I know I have done this before with hardware channel inputs on other DAW's. Any suggestions appreciated.