Is this the permanent magnet or field coil version of Euronor?
I heard the field coil version, all original, but in a much smaller enclosure, it dissapointed me. In regard to younger alnico speakers, it sounded like telephone, typical 1930s sound. It needs much knowledge from experts to convert those old speakers systems to play with modern tone and frequency range. In their original state, they easily can sound outdated.
So this version sounds very good to me, we have to understand that in those days the music plays from the middle of the frequency spectrum, that was the main part and most realistic. Much more realistic tone than almost all systems today.
Another thing is the loss in audio quality with recordings. Its not fair to judge a system on the internet when played by mp3 algorithm. But even then, this one lets its qualities shine. Thats excellent.
Regarding the Neumann DST, I had the chance to listen to a very fine replica, made in germany. It was a DST and a special mono DMT. They sounded excellent, better than Ortofon stereo and mono. But for the price of doubling the tracking force to 6gr. Its a little bit too much for me.
But both showed a quality in tone equal to the Eurodyn, I think it would be a fine match when building such a system from scratch.