Today I was reading some articles of general interest of the Concertgebouw building, Amsterdam and suddenly I stumbled upon some info from a former concertmaster. Interesting stuff about the acoustics, etc. And then.... they don't record concerts on stage, but in the middle of the auditorium (or course after having removed all seats).
Nice to know, but how about Altiverb which has a "stage setup" of the Concertgebouw acoustics? Comparing ones own recordings with those made by the Concertgebouw is useless unless it was a "live recording".