Hi Bob, if these speakers are a replacement for current speaker...

Hi Bob, if these speakers are a replacement for current speaker tech. Are the days of the roadie limited? ie how many of these would be needed for say an AC/DC concert ( a couple of suit cases full?).

More importantly (to me), realistically will they be direct replacement for hi fi (top end speakers), where currently speakers command $100,000 + price tags.

Or is there a roll off point for this tech (strengths being in phones/ lap tops, small portable devices)