millercarbon and knotscott make the most sense here. Impedance, watts, sensitivity, etc., all come into play. Looking at those numbers and pairing with an amp certainly come into play. However, numbers are that,,,just numbers.
An example....Years ago I was playing Klipsch speakers(Reference line) through a not lower line HK receiver. Watts and all those numbers seemed compatible. The sound to me (in those days) was pretty good. Then, I got a good deal on a NAD integrated and hooked them up to those Klipsch speakers. Sounded like I threw 3 Army blankets over each speaker. Not wanting to ditch the NAD amp I investigated other speakers. PSB was the final result. I believe the two companies are, or were combined.
The main point here is that no matter how long you compare and try to match numbers, there is no final answer until the speakers and amp together are listened.
An example....Years ago I was playing Klipsch speakers(Reference line) through a not lower line HK receiver. Watts and all those numbers seemed compatible. The sound to me (in those days) was pretty good. Then, I got a good deal on a NAD integrated and hooked them up to those Klipsch speakers. Sounded like I threw 3 Army blankets over each speaker. Not wanting to ditch the NAD amp I investigated other speakers. PSB was the final result. I believe the two companies are, or were combined.
The main point here is that no matter how long you compare and try to match numbers, there is no final answer until the speakers and amp together are listened.