Don't know how this slipped under the radar, but it did:
Originally Posted by mgj32
If Synthfont acts as the midi playback device, and Synthfont can handle 32 channels, is using Synthfont as the playback device a round-about way of enabling Composer to handle 32 channels?
Please say yes.
Sorry, but I think it's "no", because the MIDI standard is that any device only handles 16 channels per instance. If you can get SynthFont to come up as two separate devices, then you can route 16 channels per device. I don't think you can do that directly, but you can use multiple instances of the SynthFont VSTi in something like VST Host (see other forum posts for that), and then get all the multiples of 16 that your computer can handle.