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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

kthomas

Showing 1 response by jimmy2615

jimmy2615
417 posts
 
I had a pair of PSB Stratus Gold i's which I used both downstairs (concrete slab w/ carpeting) and upstairs (wood floor with carpeting). Bass downstairs seemed much tighter - punchier even. It was strange, too - downstairs (same room dimensions BTW) I could put them closer to back wall (3 feet or so). Upstairs I needed 6 - 7 feet or else they were your neighbor's kid's aftermarket woofer in the back of his Honda hatchback! Go figure.
As an organist I can tell you that the lowest pedal notes seem to have more punch in concrete floored buildings (yes, obviously different instruments in different buildings, but you get the feel for them after a while, and many are by the same builder).
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