I laid a 3/4" sub floor over my concrete floor using furing strips every 12" in my audio/video room. A local dealer suggested this to help the bass travel the room for a realistic feel for movies. I used to have my dedicated audio on a first floor of a house, but now prefer the lower level or basement for isolation reasons such as any outside noise or distractions. The effect is good but not as much as I had thought. I agree with Mg123 about boomy mid bass in that I have never had such a great sounding room. I would take a less forgiving boundry any day and feel no matter the cost put into the room there will always be compromises.
Bass Response and concrete floors
I was talking to a Dynaudio dealer the other day and asking about the Confidence 5's in comparison to the rest of the Dynaudio line. The 5's are apparently being cancelled with two new models being released in the Confidence line, based on the Evidence technology.
Anyway, he asked what type of flooring the speakers would be on. I said concrete with thick pile carpeting. He said the bass response on a concrete floor, even with carpeting, would be muted, that the Confidence 5's need a floor with give to produce decent bass. He said that the bass would roll off around 50 Hz on a concrete floor.
I've seen so many very positive comments about the 5's, but I suppose that people who are satisfied may well be using them on a main floor built on joists. The dealer indicated that I'd be a lot happier with the 3's on my floor.
Anybody know why this would be? More importantly, is this a common behavior of floor standers on concrete floors? Is it a general "rule" that if you have concrete floors, you'll get better performance from a high quality monitor? Thanks for any info -Kirk