It's roughly the same size and shape of the S5, with what appear to be metal sides. There are three hashing board squeezed in there, and the total power consumption is about 1200W (i.e. twice what the S5 had). Unless you think there is some magic from Bitmain, or somebody else, you should expect it to always be loud unless you are willing to forgo some hashrate and lower the power. I don't think you should hope for some "quieter fan" solution to magically appear.
It looks to me like it's most decidedly "NOT a home miner" if that is underlying your question.
for quiet mining there is some hope but they all involve case rebuilds/mods .
two blades = 800 watts and maybe a fan mod gets you quiet. of course you lose ⅓ the hash.
frankly I will need to find a sound solution for mine that I like.
one is long cables to the controller and open the case into 3 pieces .
others are box fans.
I have 1 more idea 2 of these
http://www.ebay.com/itm/EBM-PAPST-Motorized-Impeller-Fan-R2S133-AE17-05-230V-AC-NEW-/121745244827?hash=item1c5895029b
inside this
http://www.homedepot.com/p/SAKRETE-10-in-x-48-in-Concrete-Form-Tube-65470006/100350260
LOL concrete pipe
any ways here is the SOLUTION: https://www.youtube.com/watch?v=TjCQ4bJWY-U
http://chikenfeed.com/index.php?route=product/product&product_id=227