I've noticed something a bit quirky in my audio travels. That being speakers with a high sensivity (say 92db) and a 4ohm impedance. And conversely, speakers with a very low sensitivity (84db) and an 8ohm impedance.
I suppose I was operating under the misguided illusion that the two went hand in hand. But upon discovering these anomalies, I think I had it all wrong.
Seinfeld sez.... "what's the deal?"