NAD M3 owners, your assistance is requested

I just bought an NAD M3 integrated amp. I hear a clicking noise when turning the volume control. NAD says this is normal and not audible more than a few feet from the speakers.

But my clicking can get quite loud. I sit 8 feet from the speakers, and the clicking can sometimes be audible over the music. If you turn the volume up via the remote, the clicking increases in volume in lockstep with the music.

I should say, that I can hear the clicking over the music from 8 feet away, only when there is just a single instrument or two being played, for example a bass solo, or quiet piano.

I'm thinking my unit is defective and I should get it replaced.

If you're an M3 owner, I was wondering if you could play a bass solo and check if you can hear the clicking from 8 feet away when changing the volume. If you can't, then I'd be more sure something was wrong with my M3.

If you can do this, I'd be most appreciative!

(If you live near me-- Los Angeles -- and I can come check out your M3, all the better)

Thanks!

PS: In case you're interested, the bass solos I've noticed this on are:
--opening of Track 1 "Things Ain't What They Used to Be" on "Wheelin' & Dealin" CD, John Coltrane
--opening of Track 1 "Yesterdays" on "Voyage" CD, Stan Getz
--opening of Temptations "My Girl"