I have a question for all the experts. I currently us an Ampeg B2R head to power my 2 Eden cabinets. Some gigs I am pushing the B2 to it's limit and could use a little more oomph. To minimize my investment, could I use the B2R as a preamp and power something like an RMX1450? This would definately give me some headroom. Will the Ampeg be okay running no load? Thanks for the help.