http://www.whathifi.com/News/BRISTOL-SHOW-2011-NAT-Audio-takes-hi-fi-to-the-limit/
http://www.hi-fiworld.co.uk/index.php?option=com_content&;view=article&id=244:bristol-show-report
Click here to read more about Sound&Vision The Bristol Show - review 1.5mb (info about NAT - from 16.-18.page)