Well if it helps, I'm running 704s, and lemme tell you, these things go DEEP. They sound very full, but not as crystal as say a JBL studio series speaker (due to the fact that the mission has a fabric tweeter). My buddy has the 705s, and while I haven't heard them, they are towering monsters! Good luck.
By the way, I run my 704s on small w/ a 20-39PCi sub....WOW!, some of the richest sound I've heard, which brings me to my next point: full range speakers and a sub make the best compliments.