I've just come into possession of an SI-24 and V-Fire. I can get the inputs to show up in REAPER via R-Bus, but playback(and monitoring) gives me no sound.
The Presonus download site mentions a driver and 'MonitorMixer'. I've successfully installed the driver, get 44.1kHz sync(steady blue light on the V-Fire), but no sound is directed back to the SI-24. Is 'MonitorMixer' some sort of virtual patchbay? If so, where is it stashed? I'm missing something simple here...
Mac Pro Quad Core, OS 10.5.8 5g RAM, hard drive space to burn...
Will post to the REAPER forum as well.
Any insight appreciated.