I'm considering going to an AI Clarus/Ampeg PB212 set up for use with my fretless X-Factor Kubicki, on small Jazz gigs and practices. I also own a Mackie SM450 powered PA cab that I have been using as my main rig w/another pre-amp. Will it work to run the DI out of the Clarus to the Mackie w/out a speaker load, or should I always use both cabinets? Will I get the true sound of the Clarus through the Mackie? PEACE!!!!!, Johno!