Gamers Nexus built a hemi-anechoic chamber in North Carolina

[motokok]

To measure noise levels of PC cases and fans from 150hz

Maybe they'd rent it out for local speaker builders?

 

[Lingwendil]

I'm a Security guy at a Silicon Valley tech company- the team that installed GN's room also did a smaller one onsite here a couple months back. Crazy stuff. I'd love to play around with some measurements in it.