imagine an easy load no bizare phase angles, gentle slope filters speaker with power factor corrected feed forward amp below 100 hz with 11 bands of analog EQ...amp matched to sub, sub matched to amp, then the high pass goes to a hybrid amp with tube front end, liquid cooling for rock solid bias ( think that thru ), bipolars in a cyclotron floating ground output and a bunch of other neat tricks of amplifier supremely matched to speaker load and sensitivity..
Vandersteen 7 speaker and Vandersteen 7 amp
you can get close for $30k with Quattro and Model 5 amp
as othersstated, but i will paraphrase, unfair advantage when you can purpose design an amplifier for the load, and in this case split the load