Speakers for room size that provide greater detail.

#ghdprentice "If one is going to do a major upgrade of a system, speakers are a place to start. Get the very best speakers you can that appeal to your ear. Then upgrade the other components to support the speakers and achieve the kind of sound you want... the electronics are a big factor in how dry, or musical, or analytical or dynamic you system sound. So, if this is your plan... speakers are the best place to start."

Here I respectfully disagree with your post. The old adage "Garbage in = Garbage out" is still apropos here. A high end speaker will not sing properly if not fed the right input. The Rotel puts out a lot of power at 200WPC, but it is all AB, no A/AB. I cannot find it’s stats into 4 ohms, so I’m guessing that it doesn’t nearly double, which would explain why people describe it as dry & sterile. I have Martin-Logan ES hybrids and have listened to an amp that only had 50% increase into 4 ohms and it left them flat and lifeless. High current is where the details lie, not the WPC. To the OP, try my suggestions above, and then get in in home demo of a nice power amp (maybe even tubes/hybrid) to see if that helps.

If you do get the JA Pulsar 2’s, consider getting a Sugden AE21se to power them.  I’m using that combo right now and it’s as good as the Pulsars have ever sounded.

With your real classic 99 subs pairing with the dynaudio heritage specials is perfect. I'm getting the classic 98 subs go with mine.  They'll be beautiful together plus the sound. It's superb.

Here I respectfully disagree with your post. The old adage "Garbage in = Garbage out" is still apropos here. A high end speaker will not sing properly if not fed the right input. The Rotel puts out a lot of power at 200WPC, but it is all AB, no A/AB. I cannot find it’s stats into 4 ohms, so I’m guessing that it doesn’t nearly double, which would explain why people describe it as dry & sterile.

All Class AB amplifiers have some bias into Class A. For some, that bias is minuscule, but since the Rotel outputs 200 WpC into 8-ohms, chances are the designer(s) biased it for class A for ≈ 1 watt. 

Crossover distortion is not as audible as some manufacturers would like us to believe anyway. 

Not being able to find a spec for 4-ohm loads is meaningless, because many manufacturers’ amps fall short of their 4-ohm ratings anyway. Or they understate the 8-ohm spec merely so they can accurately claim the 4-ohm spec.