2 years ago, i almost bought a nagra T-audio. i didn't buy it, because had the feeling this machine is too complex and not bomb proof = much maintence. in the end bought a telefunken m15a.
i've always liked the looks of those little nagra's. i know most of them are mono, a very few stereo.
are there people who know more about the nagra's: quality of sound, durabilty, maintence, etc.