Equipment for studio recording large ensembles

Hello diyAudio Community,

I see a lot of posts for bettering a listening experience. I'm curious if you'd lend your expertise in beefing up a studio for world music sessions (like for Sufi music). Primary listening difference maybe that there are hardly any of the low low frequencies.

For now, working with Universal Apollo and Adam Audio A7X. What would be the next major upgrades (especially to build from scratch)?