@bigtwin Wait til you get your Sound Labs! You’ll be amazed at how real it sounds.
All the great halls sound good. But they also have front-of-house sound guys who are reinforcing the orchestra. All those small condenser mics hanging over the orchestra? Those are getting used. It’s subtle. These guys are good, and their equipment is top notch. Their job is for you not to notice.
I’m fortunate to sub with a top 10 orchestra from time to time. Last time I did, I brought up Sonic Tools on my iPad. Sitting just under the conductor by the first violins and <ten feet from the percussion section, the highest SPL on stage was 80dB. It was an orchestral fanfare, not Mahler. But classical music SLOs is much lower than jazz/pop/rock. I try to take that into account when listening at home.