Best speakers under $500? Fire away!

I see you went with the B6. I think this a mistake based on your amp - they are overly warm, (rolled off really) and very bass heavy (boomy) unless you have a room that is very well treated or can move them into the room about 4 feet, no kidding. I feel like NAD will only exacerbate these issues. B6 would be best match with very accurate and neutral electronics, even on the slightly lean side. good luck.

+1
I agree the Elac is a huge mistake.

+2

But this is what happens when someone insists on asking for suggestions on the internet, especially speakers.  Instead of making up a short list and going out and audition.  You end up buying what the popular flavor of the year is from a consensus from a bunch of strangers on the internet.  Which seldom ends up being the right speaker for you.

If the OP had asked a year ago, it would have overwhelming been the Pioneer SP-BS22 LR.  This year Elac.  Who know which one next year.  But you can be assured the question will continue to be asked.   

I have not pulled the trigger yet on anything.  My plan was to start with the ELAC's and then also bring in the 10.1's and MA Bronze 1's and compare all with my current Klipsch RB-61's.  I agree with people here about listening to as many as possible.  But I need to do that at home.  

I realize that spec-wise, the MA's might match up best due to my 3020's 20wpc but bc it is what it is, I think it can drive almost any speakers in this area.

Any amp will "drive" any speaker. The question is how well. We hooked up my buddy's 8wpc homemade tube integrated amp to my Martin Logan electrostatics just for kicks and plenty of sound came out. They are normally fed by a pair of McIntosh MC2200 amps. Actually, that Pioneer model mentioned earlier is a better match for the 3020, all things considered.