In all the following comparisons, the measurements are new with no change in amp/computer settings or volume. Mic was adjusted to tweeter height for each speaker. This should give a good approximation of relative efficiency. Graphs is in 2db increments.
The Pioneer BS22 plays very flat throughout the entire audible range. But after 3khz, output is about 3db lower than everything else. Giving very smooth but subdued output on from the tweeter. I don't find the Pioneers to be an exciting speaker.
The huge hump 900hz to 3khz is very audible and distracting. Without the grills there is also a large hump between 4.5khz and 8khz. I don't know if the eq file by /u/strategicdeceiver, but from his measurements of the standard Micca, these look like they would be similar.
Regardless of your version of the Micca, if you are not using any EQ. Keep those grills on.
Showing in 1/3 smoothing to make things a little easier to see. This should still show some of the major performance differences and flaws within the group.
All the speakers, as they measured with no adjustments. The Infinity's are the most efficient of the bunch but a good amount. You can really see the exaggerated humps in the Miccas. The big ramp up out of the Def Tech tweeter.