What is your take on high efficient speakers vs. low efficient speakers?

 If you music is cruising along at four watts, the 94 db speaker will need 40 watts, and the 84 db speaker will need 40 watts 

For many listeners typical/average listening volumes fall in the 70-80 db (C-weighted) range. A 104 db sensitivity speaker is probably using 1/100 of a watt. The 94 db speaker roughly 1/10 watt. Either way, minuscule power draw from amplifier at very reasonable listening SPL.

Charles

The beliefs around speaker efficiency is sometimes silly. All those numbers mean is how loud a speaker is when driven with 1 watt of power. A 3 watt "flea" power amp putting out 2 watts with any speaker, will produce the same level as a 400 wpc monoblock delivering 2 watts into the same speaker. 

Then again, some people have the erroneous belief that more power sounds better. If that was the case, the very low powered amps would sound terrible. 

My take on this is, that if you are not stuck with worrying about keeping efficiency then you can use components and crossovers that may provide a flatter frequency response without compromise. Often you have to compromise the response to keep the high efficiency. Having said that I think there are good loudspeakers in both camps.  

y’all understand distortion counts as output..in the overly simplistic efficiency measurement…. right ?

You'd want it to be as high efficiency as possible, but if you like the sound of the low efficiency speaker the best, then you get the gear to drive it.