LikeCoiled,
GAllos, OHMs, and B&W are three very different designs that do imaging and soundstage in fundamentally different ways.
What they have in common is B&Ws, Dynaudios and OHMs all generally present difficult loads for amps to drive properly, meaning the impedance varies at various frequencies, which affects the natural balance of sound top to bottom in a negative way. Gallos are similar I suspect but I am not as certain
The solution for balanced sound with more "meat on the bones" in the low end with these kinds of speaks is to use a high power SS power amp (watts) that also delivers a lot of current (amps).
These are more efficient and ideally double the rated output power rating into 4 and 2 ohms and deliver a more naturally balanced sound.
Combine dynamic speakers that move a lot of air with a more efficient amp like this and that is the formula for getting the most sound out of this kind of speaker.
It'll make a big difference for prog or any other music form with which power and dynamics are key to max enjoyment.
Or, as Tvad suggests, a more efficient design, 90+ db sensitivity or greater, will require a less powerful amp .
Along with greater sensitivity though, you might find that different amps and electronics still result in big differences in how the speaks actually sound as well, though less power is required.
Emerald Physics is another radically different speaker design I would like to hear. It uses specialized digital processing electronics to tune the source system to the speaks which is a very interesting and radical approach. I've heard some good things about these!