A few examples of monitors using the markaudio alpair 10 speaker. These are bass reflex alignments which have been used to investigate different loading arrangements and determine how these differences relate to amplifiers with different output impedances(damping factors).

The markaudio range of speakers have proved to be very faithfull full(wide) range units.
Differences in loading have been measured and recorded, but nothing more than generalisations have been reached. Experience has shown that some amplifiers, particularly single ended valve amplifiers, can have their bass response tidied to some extent by a cabinet which heavily loads the driver. However, these findings are by no means conclusive.
2 way cabinet build
2 ways after sanding
constructing stands

generation 1
nearfield in the studio