sorry, just saw the post after the buying decision was made
First of all, congrats on going NAD. IMO, you can't go wrong with a NAD
The C352 and C326BEE are very different NAD integrateds. The older sibling of the C326BEE, the C320 is from the same life time of the C352.
The C series of NADs was the first attempt of NAD to upgrade the standard NAD philosophy from the past wherein NAD integrateds were more Phono focused. The C series were designed without Phonostages (some say for keeping costs down but I believe it was more in tune with the times, the 2000s when digital was at its prime). Other design aspects included more mordern output stages and a passive preamp and passive tone control. From my experience of listening to both, the C352 being more powerful, had a larger presence and neutral sound stage (as you have correctly noted). The C320 I thought was fine tuned to play with speakers in the lower price bracket, owned by enthusiasts on a budget, with main stream music genre listening tastes. Hence, the C320 tended to be a wee bit thinner (only marginally) on the mids and a little more pronounced on the lows and aggressive on the highs. Personally I thought both amps sounded rather pathetic when paired with my NAD 106's phonostage (maybe a case of input impedance mismatch). Overall, the C352 is a better bet in my opinion. Many say that the C326BEE does not sound as good as the C320. The C320 has become a legend amoung NAD enthusiasts and many consider it to be a direct descendant of the iconic 3020. Experts have said that the dynamics of the C320 are missing in the C326BEE.
Also the C series amplifiers included a Remote which was something, older NAD users would have loved to have (but can live without). Our C320 works with an AirTel DTH Universal remote.
AV receivers are no match for these NADs, hence your decision to listen to 2-channel stereo on the NAD is a huge game changer for you. All the very best, enjoy the music.