Big speakers and suspended floors

G

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Just had a brief moment of panic, I'm moving house soon and the new place has suspended floors. I've been living with concrete floors now for at least 14-15 years.

Anyone using big Tannoys in buildings with suspended floors? Am I concerned over nothing?

No neighbours to annoy but I'm worried about boominess.

 

bandit pilot

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Just had a brief moment of panic, I'm moving house soon and the new place has suspended floors. I've been living with concrete floors now for at least 14-15 years.Anyone using big Tannoys in buildings with suspended floors? Am I concerned over nothing?

No neighbours to annoy but I'm worried about boominess.
It will be a case of suck it and see Tom. You might get lucky, or we might see big Tannoy's for sale soon. :D

 

themadlatvian

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Dec 28, 2008
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Rick is bang on - don't panic yet. It all depends on the resonance frequencies of the joists, how well braced/damped they are, the dimensions of the room and the size/depth of the space beneath the floor. You don't of course want a floor to be freely flexing all the time, but I have known suspended floors that have been very successful with large speakers with extended bass response.

Steve (MVJ) struggled with this for years with his beautiful B&Ws, but I think that was caused by the unusually large cavity below the floor of his music room.

:^

 

graham67

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May 19, 2010
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HI Tom,

I think you should be fine. I have now moved my GRFs to an old house with rattly suspended floors. And other than a bit of vibration transmitted to the floor the wheeled feet, there appear to be no obvious problems. And in their new bigger room, they now sound great.

If you are concerned, big slabs of 30mm or 50mm granite underneath are good as they create a nice stable level base as they are so damn heavy!

For smaller speakers on wobbly floors, Townhend suspended speakers stands are brilliant but I dont think they come in Tannoy size :) . But probbably due to their mass, the tannoys seem fairly immune to shaky floors.

 
G

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Thanks guys. Useful reassurance. Glad to hear Graham you got a better location for yours :)

 

steelhull

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Jul 11, 2009
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Hi Tom

I have large speakers in my first floor listening room with a bouncy floor and lots of boom in the room below. I fitted Townsend stands and there was a big improvement in the bass, much cleaner, and my wife was much happier!

i think that Townsend will build to order but obviously see how you get on first.

Mike

 

GR1

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Studiospares and others have Isolation mats and Anti Vibration mats which will help/fix any problem. I would wait for any problem to arise before worrying about it.

 
G

geoffp67

Guest
large concrete paving slabs should help with boom IF needed. One may suffice, no reason not to use a few though :)

Or try standing speaker on a diy sandbox, wooden box with a couple of inches of dry sand in it

Sticking everything together with blu-tack is usually effective too.

I'd always try the very cheap solutions before going mad with the plastic

 

graham67

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Thanks guys. Useful reassurance. Glad to hear Graham you got a better location for yours :)
Thanks tom, they were all wrong in the last too small room werent they? But in their much bigger room they now sound good. :)

 

catcando

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Tom, there is a sensible fix, before you move in. Get 15mil plywood, and cover the room. Glue and screw it through the old floorboards, to the joists. You will have a very solid floor, for a small outlay.

 

avinunca1

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Tom, there is a sensible fix, before you move in. Get 15mil plywood, and cover the room. Glue and screw it through the old floorboards, to the joists. You will have a very solid floor, for a small outlay.
If you have wooden floors of course you might prefer to make a feature of them by sanding and Osmo oiling them - luvly

 

josst

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+1 for the Townshend solution. He has even made stands for monster JBLs.

There is a picture of mine in my OBX-R2 For Sale thread. Simply, they work, and the benefits are not subtle - not only a complete absence of any hint of boominess in the bass but improved transparency, timing and punchiness across the whole frequency spectrum.

 

hifinutt

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My Westminsters sit on a very springy wooden floor without any problem.
yes indeed , those monsters sound gorgeous !!

have no fear tom

I have big summit x and suspended floors and no probs

 

Andy831

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I can only speak for myself Tom but I have largish Tannoys, timber suspended floors and a rather large cavity below the floor and have few if any problems at my listening levels in a smallish room.

 

Purite Audio

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I have a cellar here underneath a suspended floor, and I am positive it contributed to a huge bass suck out, I would acoustically measure the room when you are settled.

Keith.

 

AmDismal

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Apr 22, 2007
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Tom, there is a sensible fix, before you move in. Get 15mil plywood, and cover the room. Glue and screw it through the old floorboards, to the joists. You will have a very solid floor, for a small outlay.
I was going to suggest just this, although I think I'd just screw it, as gluing is a bit drastic. You could also add mass - just lob in some hardcore underneath the floorboards. Won't look tidy, but will reduce those nasty resonances.

 

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