I'm forced to disagree with Sean here. I've never found NAD to be particularly smooth. It's always been a bit hot and harsh to my ear. That's not to say it's unmusical though. It is. My guess is that this combo is just a little too bright.
Just as an experiment, you might try tilting the speaker back (or forward depending on where the tweeter is). That might take some edge off the sound.
Just as an experiment, you might try tilting the speaker back (or forward depending on where the tweeter is). That might take some edge off the sound.