let us know what you get.

oh more sound proofing info for you all

some videos on soundproofing a set of 2-3  avalon 741's

this will work for bitmain s-9 s-7 l3 d3 t9

https://www.youtube.com/watch?v=6soWakwmK5M

https://www.youtube.com/watch?v=THQHtFPkzuk

https://www.youtube.com/watch?v=8X15H0qLNyI

https://www.youtube.com/watch?v=thH3vMx28RM

1 of these

https://www.amazon.com/gp/product/B01FOILJEI/ref=oh_aui_detailpage_o00_s00?ie=UTF8&psc=1

1 of these  cut into 4 pieces each 2 ft by 4 ft

http://www.homedepot.com/p/Pine-Plywood-Common-23-32-in-x-4-ft-x-8-ft-Actual-0-688-in-x-48-in-x-96-in-799397/202677224

6 of these

http://www.homedepot.com/p/Everbilt-7-8-in-x-5-5-in-White-Magnum-Shelf-Bracket-EB-0099-8WT/204657448

1 of these

http://www.homedepot.com/b/Building-Materials-Insulation-Radiant-Barrier/24-ft/N-5yc1vZbedfZ1z10z4z/Ntk-brandsearch/Ntt-ultratouch?NCNI-5&experienceName=technical
lastly 1 of these


http://www.homedepot.com/p/2-in-x-12-in-x-10-ft-Premium-2-and-Better-Douglas-Fir-Lumber-707231/202094202

1 fire blanket is     $10
the ply wood is      $30
the brackets are    $15
the sound material $61
the 2 by 12 by 8    $10

comes to 126 dollars

but  you will use only ½ the sound proof material  

so under 100 for 3 units  .  and about 12 feet of sound material left over.