I'll put my 2 cents in. Get an amp that has super high current. Ignores the varience in impedance. Has mega wattage. Then if you can't afford the amp go with horn loaded speakers. Transients are what you are looking for. Super start up and stop of the cone. Only a fine amp will do this. Mega power and damping factor. My amp is stable down to a short circuit. Mega current and 350 watts. My speakers are ruler flat BUT ineffecient. Impeadance varies as low as 2 ohms. 89 db at 1 watt. If you really want the total control get as much power as you can afford. The peaks can be 1000 watts and have to rise quick and no stress on current.
I am using an Anthem P5 Statement. It is 5 channel but my preamp can do 2 channel as well. Stable down to a short circuit and beefy.
Good luck in your search. Get more power!!!!!!!!!!!!