It is best to lay the flooring plastic side down directly onto the cement floor.
Down firing sub on concrete floor.
Repeat the move measure process as many times as necessary to find the best general location for the sub.
Get a comprehensive breakdown on which materials to use what to take into consideration and what steps to take for four subfloor systems.
Multiply length times width of the room.
Regardless of what subwoofer you choose just be sure to decouple it from the floor.
In simplest terms a good down firing sub can perform equally well to a good front firing sub.
Although the sub shouldn t have any problems with hard flooring or hardwood flooring in general depending on the set up in the room the other speakers etc it s possible that there is just too much reflection in all directions which can cause the subwoofer s channel to overpower the rest or to be under powered and lost.
If you have a vinyl floor you may be able to install your flooring directly on top of it.
Add about 10 to that number to account for any possible mistakes and warped boards.
If the result is more to your liking then you are on to something.
Treat the cement floor with a concrete sealant prior to installation if you find that your floor seems damp wet or that it collects moisture.
One is not inherently better than the other.
A down firing subwoofer box produces a domino effect if placed inside a room.
As a result the material for the subfloor will acclimate to the temperature and moisture content of the room.
Now it is time to fine tune.
Remove any carpet or other flooring.
The domino effect starts because of the shaking of the subwoofer box.
Determine how much flooring and materials will be needed.
Floated subfloor alternate subfloor glue down sub floor and the nail down subfloor system.
And since the shaking directly affects the floor the floor starts shaking.