to help other users I have mad some photos of my cabinet where I built in my S9.
I hope this will help a little bit and inspired other users to find solutions.
I you have better or other solutions, please make some photos and show us.
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I bought a small cabinet where the machine is in there.
In the cabinet I built a wall outlet (down lefin first picture), which I can by a switch on the back, Power get on and off. This saves power when the machine is not running.
On the back is a 2 inch hole for the breathing tube, sown in the first picture over the left top side of S9. The back is completely covered with 1 inch foam. Where's the hole for the hose, I cut the foam cross-wise, so the hose fits through the foam and sealed off. Thus, no noise reaching the outside.
The machine is standing on a 1inch thick foam. However, not directly on the foam but on a 0.5" styrofoam plate, which is on the foam. Acoustic emission is thus not transmitted directly to the wood, which is really all very much quieter.
You have no fear of overheating due to the power supply and the machine, because every minute is drawn in much air, which cools the interior.
The effect is that, the machine is protected from dust, I just can do anything to save electricity by switching on and off.
The most important effect, the cabinet itself and pasting with foam, the sound and noise are not released into the room!
For details, please see pictures:



I hope this will help,
Regards,
Astrophytum