Why don´t you just install ac in your garage and put the units there,
that should take care of most of the sound problems.
even better, install it in a relative's garage.

what noise? can't hear a thing.
Best way of getting back at your mother-in-law.
also, best way to get the old father interested in mining

i'm working on him. first thing he says once i got it running (coupla cubes, couple singles, pile of blades and the sp10), was not regarding the noise... it was... 'wow much power' (i'm sure he's been dogeing lol)