Valhalla Technology - VT FEET: HOW DO THEY WORK?

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How do our speaker feet work ?

Sound is pressure variations in the air produced by

vibrating materials. A speaker produces sound using

a number of drivers that create vibrations.

These vibrations are emitted primarily as sound from

the driver membranes, but some of the vibrations are

transferred from the driver to the speaker cabinet.

Unless the cabinet is made from a 20.000 kg rock, it

will also vibrate ! The vibrating speaker cabinet will

then transfer these vibrations to the floor, shelf or

stand. Subsequently, these items will resonate and

produce a sound of their own. The additional sound

is unwanted noise, which becomes combined with

the sound from the speaker drivers. The outcome

of this is an inferior sound lacking clarity, precision

and detail.

VT Feet are designed to absorb vibrations from the speaker cabinet and prevent their transmission to the floor, shelf or stand.

The result is a vastly improved quality of sound. An additional feature of the product is in reducing vibration transference through the buildings structure. Your neighbours will hear less noise and you will be contributing to reducing this antisocial problem.

On a wooden floor:

A wooden floor can easily be set in motion by a vibrating speaker, the floor will then act as an extra driver that adds sound out of phase with the drivers of the speaker. This can present itself as a considerable problem at lower frequencies. The bass loses both tightness and definition.

On a concrete or stone floor:

Even a floor made of stone or concrete can vibrate. Try hitting a concrete floor with a wooden stick - it will rebound and vibrate noticeably. Alternatively, put a struck tuning fork to a concrete floor - it will resonate clearly. A stone or concrete floor can also reflect vibrations back to the speaker, creating additional unwanted noise vibrations here. Added cabinet vibrations results in undesirable coloration of the sound.

On a floor with carpet:

The effect of VT Feet on a floor covered with carpet, accepting variations in adsorption abilities, will be more or less the same as if the carpet was not there. Even on a concrete floor with a carpet that has high vibration absorbing properties, VT Feet will still have a noticeable effect.

On a bookshelf:

A vibrating speaker can set a complete bookshelf in motion, with the result that everything making contact with the bookshelf will produce noise. This is especially so with glass items, which produce considerable noise. Often, this can be as loud as the sound coming from the speaker ! VT Feet have a great effect overcoming this problem.

On a stand:

A normal speaker stand is made of some type of metal. When metal is vibrating it rings like bell - try to hit a metal stand carefully with your knuckle, the ringing, which may last for a long duration, will be clear to hear. Note that speaker stands made of other materials can also vibrate and add noise to your music. VT Feet provide a great solution to all these problems !!

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