Yes, clearly, if I had a pair of the 3.6's (what, 3-4ohm average load???), i'd likely have to use a minimum of a good Parasound middle range dedicated power amp, and probably better, to get the sound quality an control I was after. On the used market, I'd probably be looking to try older used Classe, McCormack, Simm, Threshold,Levinson, Pass, Plinius, Coda, Nero, n maybe even Krell (prob not), for solid state options. Yes, either way, an high quality dedicated power amp is what those speakers are designed for. Just comes as with the territory.
If you want to run a receiver, use smaller monitors, and be prepared to use the crossover, and run a sub.
If you want to run a receiver, use smaller monitors, and be prepared to use the crossover, and run a sub.