There is no reason to avoid one design or the other.
Down firing sub on concrete floor.
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.
That will depend on what type of music you listen to if you don t like what you see move the sub to a mid wall location and repeat the sweep.
Determine how much flooring and materials will be needed.
Learn how to install beautiful hardwood floors over a concrete slab.
As a result the material for the subfloor will acclimate to the temperature and moisture content of the room.
Regardless of what subwoofer you choose just be sure to decouple it from the floor.
One is not inherently better than the other.
If you have a vinyl floor you may be able to install your flooring directly on top of it.
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.
Add about 10 to that number to account for any possible mistakes and warped boards.
Floated subfloor alternate subfloor glue down sub floor and the nail down subfloor system.
Now it is time to fine tune.
Remove any carpet or other flooring.
Multiply length times width of the room.
It is best to lay the flooring plastic side down directly onto the cement floor.
Get a comprehensive breakdown on which materials to use what to take into consideration and what steps to take for four subfloor systems.
A down firing subwoofer box produces a domino effect if placed inside a room.
The domino effect starts because of the shaking of the subwoofer box.
And since the shaking directly affects the floor the floor starts shaking.