I used a 600c for years with various 2 and 3-way speakers. I never had a complaint or a problem with the set up. The 600c was probably a little lighter than my present Mackie 808s, but the Mackie is much cleaner and more powerful - the 600 seemed easier to lug around. All in all, I would not hesitate to use another 600c and this time around I would probably look at the PR-12 or 15 cabinets.