Speaker efficiency really has nothing to do with cone movement or quality of sound its just how efficiently the speaker produces sound.

Everyone has a different taste on what music should sound like and room acoustics play a large role too.

When i went shopping for audio equipment i spent months shopping around listening to different systems, with a $5000 budget and lots of time finally i pieced together what i wanted and when friends come over usually i have to pick their jaw off the floor and mop up the drool afterward.

Just take your time shopping around and if you are not happy with your purchase just return it and try again.