I think that two PC’s could do a good job. Easily better than what you have now. IIRC, off hand, the pc2000 pro and the MK5 are very close in performance, with the edge problem just barely going the the HSU. this is from my failing memory lol.
@shadyJ probably has a file with a side by side of them. The main advantage that the svs might have is the app control, and three band EQ. Plus the “free” shipping both ways of you don’t like the performance.