So why the Yorkville's, Fran?

Me, I've never heard anything that can throw a decent sub kick out there through an 8" speaker at anything other than cocktail levels. My Mackie HR824's have 8" woofers, and sound VERY deep and full at nearfield distances and volumes. But I wouldn't DREAM of using them for a 100+ crowd in a medium room, unless MAYBE I was doing cocktail, background music for the elderly... (which wouldn't even involve sub kicks and even low end)

Personally, I would take your own advice... Don't be so SURE