I stand corrected.
I should have phrased my statement more succinctly perhaps leaning to the idea that you have somewhere along the lines of your industrious career used 'pro' equipment. I would be rather surrprised if you have not encounted these units at least once, or discussed with others their use in various venues.
A friend of mine over at CBC here in town does some producing for commericals and other ventures. The equipment they have i know falls into this 'pro' level category for sound and video. In fact, if you keep watching the local channels, there will be a 30s commercial on Winnipeg Icesports in the next month in which you will see some of our hockey team, myself included, flailing about on the ice.