True Point Audio Ltd only
uses Sorbothane® for its Acoustic
Isolation Pads, Hemispheres and Mats. They are suitable for acoustically
isolating most pieces of Hi-Fi equipment particularly Turntables, CD players
and Isolation Platforms etc.
What is Sorbothane® ?
Sorbothane® is a relatively new product, invented and patented in 1982 by Dr.
Maurice Hiles, a British inventor. His research into the energy dissipation
properties of human soft tissue disclosed a structure very similar to an
interpenetrating polymer network. This led to his synthesis of the first
commercial simultaneous interpenetrating network, now called Sorbothane. Dr.
Hiles wrote in his patent "The resulting solid polymer behaves like a
quasi-liquid, being readily deformed by an applied force and slow to recover,
although in the absence of such a force it takes up a defined shape and volume".
In 1976, he contacted the National Research Development Corporation (NRDC)
about his invention; the NRDC spent almost £10,000 in helping him to improve and
patent the polymer.
Sorbothane Acoustic Isolation Pads
The material combines some of the properties of
rubber, silicone and other plastic polymers. It is considered to be a good
vibration damping material, an acoustic insulator, and is highly durable. An
unusually high amount of the energy from an object dropped onto Sorbothane is
absorbed. The feel and damping qualities of Sorbothane®
have been likened to
those of meat.
Sorbothane® is a visco-elastic material, meaning that
it exhibits properties of both liquids (viscous solutions) and solids (elastic
materials), with a relaxation time of two seconds. Because visco-elastic
behaviour is desirable in shock and vibration applications, many materials claim
to be viscoelastic; however, many of these materials have only trace
viscoelastic properties.
The Acoustic Isolating Pad
and Hemisphere.
The purpose of
using isolation pads is to decouple acoustic feedback from your speakers or
sub-woofer and other sources of extraneous vibration.
They are installed to
separate your turntable deck, CD player, amplifier or other audio components
from vibration. Therefore, the tones will be more focused and tighter.
Our specially designed and precision made Adjustable Isolation Feet will give a
much better performance to your Hi-Fi components
Sorbothane® Mats and Strips:
For Acoustic Mat
stocked sizes please see table #1 below.
Acoustic mats
can be cut to your required size, please ask for details.
Please contact us for latest prices on
any of our products.
Table #1.
SORBOTHANE®
PRODUCTS |
|
Product No. |
Description |
Sheets |
SPS5050-3 |
500 x 500 x
3mm |
|
SPS5050-4 |
500 x 500 x
4mm |
|
SPS5050-5 |
500 x 500 x
5mm |
|
SPS5050-6 |
500 x 500 x
6mm |
|
SPS5050-8 |
500 x 500 x
8mm |
|
SPS5050-10 |
500 x 500 x
10mm |
|
SPS5050-12 |
500 x 500 x
12mm |
|
SPS5050-18 |
500 x 500 x
18mm |
|
SPS5050-25 |
500 x 500 x
25mm |
Strips |
SS1005-12 |
1000 x 50 x
12mm |
|
SS5035-30 |
500 x 35 x
30mm |
|
SS504-50 |
500 x 40 x
50mm |
|
SS584-8 |
580 x 40 x 8mm |
|
SS784-8 |
780 x 40 x 8mm |
|
SS9840-8 |
980 x 40 x 8mm |
|
SS1184-8 |
1180 x 40 x
8mm |
Hemispheres |
SH30010 |
10mm dia' |
|
SH30011 |
11mm " |
|
SH30019 |
19mm " |
|
SH30030 |
30mm " |
|
SH30050 |
50mm " |
Sorbothane® Pads:
Sorbothane® pads/discs can
be cut to your desired diameter and thickness, please see the table above for
material sheet thickness, and contact us for prices.
Sorbothane®
Hemispheres:

Sorbothane® hemisphere
mounts provide a quick, cost-effective method of isolating Hi-Fi
equipment.
Place the hemisphere under
the unit to be isolated with the curved surface up.
Expect a 20 to 30%
deflection when statically loaded.
Under-loading will result
in poor isolation.
Table #2 shows
Rated Loading of Hemispheres |
Part
Number |
Base
Diameter |
Rated load (Kg)
30 Duro |
Rated load (Kg)
50 Duro |
Rated load (Kg)
70 Duro |
SH30019 |
19mm |
0.9 - 2.3 |
2.7 - 3.6 |
4.0 - 5.0 |
SH30030 |
30mm |
0.9 - 1.8 |
2.3 - 4.5 |
6.8 - 10.0 |
SH30050 |
50mm |
4.5 - 6.8 |
10.0 - 13.6 |
12.7 - 17.2 |
Other sizes available on request.

Please
ask about our Sorbothane gaskets.
We laser cut Sorbothane gaskets for extra accuracy and
speed of production.
The gasket shown is for acoustically isolating a tonearm
thus improving sound reproduction.
|
|
Fitting instructions for all of our acoustic products: -
Please read the following instructions carefully before fitting the
Acoustic Pads/Mats etc, as we can not accept any liability for any damage caused to the turntable or associated equipment, if you have any queries about fitting the
Acoustic Isolation Pads or Hemispheres,
then please contact us before fitting them.
-
Before moving your equipment please ensure that all
loose and fragile components are properly secured so that they will not get
damaged if moved.
-
We recommend that you have someone to help you,
as they can place the pads/hemispheres or mat in position while you
carefully raise the equipment that you want the isolation aids placing
under.
-
After the hi-fi equipment has been carefully raised,
place the pads/hemispheres or mat in position and carefully place your hi-fi
equipment in position.
If you are unsure about any of the above, please contact us
for more information.
Sorbothane® is registered to Sorbothane Inc, USA. |
Copyright
© True Point Audio Ltd
|