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Old January 8th 08, 10:24 AM posted to uk.rec.audio
Phil Allison
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Posts: 927
Default Speaker spikes to reduce vibrations through the floor?


"Serge Auckland = another Pommy audiophool MORON "

"D.M. Procida"

Would speaker spikes help cut down the sound transmitted to the
occupants of a flat on the floor below? If not, what would?

I believe the floor is carpeted, and the speakers are not very huge
anyway.


No, just the opposite. Spikes will *couple* the 'speakers to the floor,
and consequently any vibrations of the 'speaker cabinet will be
transmitted to the floor, and hence to the people below.



** Speaker cabinets barely vibrate at all - certainly not at the
corners.


Maybe not, but any vibration that's coupled directly to a presumably
concrete floor will be immediately audible below.



** Sound pressure COUPLES DIRECTLY to a floor - you ignorant ASS!!!


It is the low frequency **sound pressure** in the room that vibrates
the floor.


Yes, but cabinet vibrations *will* couple to the floor using spikes.



** Cabinets do not vibrate in the corners AT ALL .

Low frequency SPL in the room acts over the whole inside surface and is BY
FAR the dominant cause of floor vibration.

Easy demonstrated by lifting a speaker off the floor in your hands and
noting the level of floor vibration DOES NOT CHANGE.

You colossally ignorant fool.




........ Phil