Concrete or Wood floor in listening room?


I'm thinking about building a listening room. It will be a concrete slab. I'll be using carpeting in the room. Should I put plywood down on the concrete first or just carpet over the concrete?

Thanks,
Mike
mjglo

Showing 3 responses by sogood51

I took 2x4's and laid them on their sides, this will raise the floor 1.5 inches above the concrete (glue and nail them down). Then I put 1.5 inch thick foam panels between those for insulation. After that I laid down .75 inch tung and groove flooring on top of that..very solid floor that has the feel of no floor at all on top of the concrete (in other words, no give regardless of how hard someone might jump).

Thick carpet tops it off. Don't try to lay the tung and groove with out someone that knows how it needs to go down...it's like a giant puzzle and the last piece of the puzzle fits very tight.

Dave
Mike

Think of your floor as another wall. Concrete walls absorb nothing. A well constructed sub-floor will be just as good as cement in isolation from vibration.

Q_man

While I don't agree with your choice of sound room construction...ie> all block room, sounds interesting with horns in a " you are there..LIVE sort of way.

Dave
Sorry Mike

I should have been more clear. You have nothing to lose from the benefits that cement floors offer over most wood floors which are raised and set over a foundation or basement. Most have spring to them (not a good thing) along with other problems that result in poor vibration control.

A solid well constructed sub floor can offer many benefits over carpet/concrete only.

You can string wires.
It offers warmth to the room (I live in Michigan}.
It absorbs bass, concrete may be a good isolater but it is not a good absorber...pad and carpet absorb almost no bass.

Of course these are my opinions as A/B testing would be hard to do. Maybe Rives will see this thread and pipe-in on which method he would go with as he may have had a chance to do an A/B with before and after measurments.

Dave