Bookshelf Speakers with the decent bass

The Fritz Carbon 7s would be an excellent choice, for way less than 4k. Fritz is a great guy to talk to as well.

I think Jl35 is right to wonder if you should consider more amp, if you are willing to go 4k on speakers. You might well be able to detectably best the NAD.

So you might think about how to allocate your budget. (eg, the Carbon 7s and a used Cronus Magnum -- to pick an amp at random -- come in at under 4 combined). I seem to swap out speakers much more frequently than my amps, so I might put more into the juice.

John

Kef R300's do bass, and everything else very well..

Clearwave Duet 6 monitors might do it for you. I like them so I'm biased so I had a high end dealer over for a listen just to make sure I wasn't going mad and he thought highly of them and said he could listen to them all day long. He even inquired if Clearwave made a floor stander.

The only caveat he had was that there was a bit too much bass for my room and he felt the padding under my carpet added too much instability which aided (but smeared) bass response and kind of rolled off the highs so I got some ceramic flagstone and put them under the stands and it went a ways to quell the problem.

I still might try the least expensive Symposium plates between the speakers and stands but I've come to realize just how flat the response is up high. With my old Tonians and the ribbon tweeter cymbal strikes and crashes sounded 'in your face' which grew kind of old after 5 years. Now the cymbals are where the drums are and not overdone. It all depends on the recording techniques.

The only thing that may be an issue is your amp. Although the watts are enough, not all watts are equal. It's like horsepower in a car: two cars will measure the same but have different torque curves and perform quite differently.

All the best,
Nonoise

THANK YOU ALL on your opinions.
I narrowed my choice to the Carbon 7se and the Proac D2.
Mr.Fritz confirmed that Carbon 7se would sound nice with the
NAD. How about the Proac D2, or should I stay away from the
Proac since they require more powerful Amplifier.

You might have enough power, but the Proac's deserve a much better amplifier...