Those are all very helpful comments. Thanks! It seems like we're all fumbling for answers in this area quite a bit, so I linked this thread to a post in Ask Conitec. Hopefully they'll come in and clarify some of these mysteries for us

Here's the link. By the way, I couldn't find any Audio Engines on the net for less than $1K or so--let alone one that integrates easily with 3DGS.