As mentioned, there are (2) DSP cards in the SC48 and that is fixed---NOT expandable. And while there are (2) DSP cards in the MixRack system that is expandable to a third card....the Venue MixRack, Profile, and DShow use about 1 1/2 cards to process the console where the SC48 really is using about one whole card to maybe 1 1/2. The (20) TDM plugin limit really is a fail-safe, so to speak. When I first went over the SC48 I thought this was a limitation----then again I realized, what other console in this price point can do such a thing..... nuff said.
