Affordable Newer Speakers

You don't mention price range but my suggestion is the same anyway. Do a little research, buy used from reputable sellers and audition in your system. If whatever you buy isn't to your liking you can resell.
You can't lose much if you don't mind the hassle of buying and selling/shipping. Just make sure the original packaging is included.

Dynamics are/is the most important criteria. The price range is $500.00 or less. I realize speakers should not be bought solely on the basis of others opinions, but a guide to a path can be suggested (hopefully), especially by the many knowledgeable people here. As for as equipment is concerned, it's the 9300, Rotel RCD-950, and Angstrom 100.

"I realize speakers should not be bought solely on the basis of others opinions, but a guide to a path can be suggested (hopefully), especially by the many knowledgeable people here."

You'll have no problem getting recommendations, you just want to try to get the right recommendations for you. If dynamics are important, you will definately want to get something easy to drive. In your price range, I think you may like something from Monitor Audio or possibly a pair of used Vandersteen Model 1's (If you can find a pair).

I don't usually recommend something unless I know it well, but I would also consider a pair of used Tekton's. I haven't heard them myself but everyone who has, seems to rave about them. $500 isn't too much $, maybe take a chance.

If you have a already have a sub, you really can't lose with the Pioneer Model: SP-FS52... These run $249 retail and I've seen them for less. Once they break in they are surprising. I don't think you'll find anything for $500 to beat them.

A $500 budget with the hopes of surpassing what once was a 1k speaker in its day is asking a lot...that said...my experience with Minis is that they image well, but bass can be wooly and overly warm...I would opt for speaker with tighter, somewhat leaner bass...Dynaudio comes to mind...or try a Hsu sub