NAD 320BEE vs. NAD 325BEE

I would appreciate any feedback from people who have listened to and heard both the nad 320 bee AND the nad 325 bee integrated amplifiers. I'm trying to ascertain if the "upgraded" version is really a better piece of equipment, or is this a hype. The new issue of What Hi-Fi gives the the new version a much lower rating than the older version, but I can't make out if this is because there are now other integrated amps in the price range that they like better. I'm more interested in a direct comparison between the two NAD amps, and the magazines don't seem to be offering any information in this regard. Although specs can change and upgraded versions can be made to sound like they're better, I've found that it's not necessarily the case; that's why I'm asking for help here. Thanks for any help that can be offered. The older version is the 320 and the upgraded version is the 325.