I'm by no means an acoustical engineer. Just a carpenter and music producer. So basically yes they are different aspects of designs I've seen and been trying to go back and forth on some of the other forums on how to put together the venting.
I do realize those vents are a bit elaborate. I actually changed the design to only incorporate a single baffle. Just didn't have the screenshot handy on mobile.
You aren't wrong about using one of the PSUs to power the fans. I'm kind of weighing my options at this point. They actually make a molex to 12v power adapter so I could even just go straight into the wall. It wouldn't have PWM but I'm not sure I really need it.
As far as the baffles the reasoning for them at all was that if air can get in so can sound. So I've been told. So wouldn't I want to diffuse any sound waves before they entered or exited the case? I've been looking for some guidance on the vent system in general honestly just haven't found someone to bounce ideas off yet :-).
This project. Is all in the planning stages no materials have been purchased yet and still in the research stage but hoping to get build by September.
Thanks,
Kevin