Can anyone compare the volume levels from the S-Line to S&P's TD lines? I run an 8" TD-200 now, got it because it was supposed to be pretty quiet. Well, it isn't, really. I mean it's all relative... it's definitely quieter than some jet engine fans I tried before it, but it's not really at the volume level I'm looking for without doing some work.
I've done my best to mute the hell out of it with a lot of wrapping and duct muffler and shit but GOD what I wouldn't give for a genuinely quiet self-insulated fan. I even heard the TD silent series weren't really a huge improvement over the TD's...
So has anyone switched from a S&P TD unit to one of these S-Lines of a similar size/cfm, and can you give us your input on noise levels?