Re: 10 inch subs used for "loud speakers"
A loudspeaker is any device that transforms an electrical sound signal into an mechanical one whether it's a sub, a tweeter, a bullhorn or what-have-you
He wanted a pro audio midrange, he just didn't know enough about the difference between a sub and a midrange and assumed that all 10" speakers play the same set of frequencies well. He was probably looking at his friend's setup with the 10" Eminence drivers in the back for midrange.
Artificial Intelligence is no match for Natural Stupidity.
Never underestimate the power of stupid people in large numbers.
Life's tough...it's even tougher when you're stupid.