2.0 Stereo speakers on a $2000 budget?

My thinking, given that you own the NAD 356 integrated and CD player and want to keep them. 

There are many choices that would mate well with this amp and represent a major upgrade from your aforementioned speakers. I totally agree regarding the Klipsch RP-160M. I have a pair which I drive with a NAD 326.  

I generally don't get into recommending speakers as choice is so subjective, however I agree with the Vandersteen recommendation as one to consider. Given your room size I would think the 2C to be the better choice over the 1C. The new version of the Vandersteen 2Cs retain at $2200 I believe. Earlier versions come up used and can be had for much less. They are very highly regarded and can be driven effectively by your amp (80wpc). Should you wish to one day, they will respond to an upgrade in amplification. Look them up, call Richard regarding questions. 

Nadamp,

You have been given some good options, although somewhat diverse. I've owned Vandersteens, Magnepans, and Silverline. 

My advice is take your time and balance your risk/reward. Audition speakers in your room with your gear if possible- preferably with an option to return if they don't suit you. 

You can learn a lot on here from past posts and reviews, as well as check out gear for sale. Most on here are happy to answer questions and help as needed.

Sorry if I talked below your level of understanding, just trying to help.

Best-
gary

@mesch , The OP has a budget of $2000 or less.Why would you recommend these? Just curious!
http://vandersteen.com/products/model-2ce-signature-ii

 Glad to try to help.Of course, in a thread like this, everybody is going to tend to recommend what they have!That said, I will put in a pitch for the Spatial Audio M3 or M4 open baffle speakers.  They are an INCREDIBLE value. My M4's are the speakers that got me off the merry-go-round. I'm just happy. 

@donvito101 

+1. 

Otherwise I would have recommended Golden Ear Triton Three Plus instead of 5