I think I am going with the vortex fan.

I'm going to sell my eco crap fan. It really pisses me off.

Thanks for the tips on sound proofing the room.

I run a 6" though a 1k cool tube. I'd say truthfully the cool tube works so well 150 cfm is ok, I just want a big fan to run at a 1/4 or so speed.

Thanks for your help.