Townshend Seismic Isolation Platform

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Spring Min weight Max weight Colour Code
AAA 0.5kg  1kg ) Brown
AA 1kg 2kg Red
A 2kg  4kg  Orange
B 4kg  8kg  Yellow
C 8kg  16kg  Green
D 16kg 32kg  Blue
E 32kg 64kg Silver

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Seismic Vibration Isolation Platform

Especially designed to isolate individual components such as CD players, turntables, DACs, preamplifiers, power amplifiers and streamers from vibration. 
The Seismic Isolation Platform includes a durable slim steel top plate that integrates unobtrusively under any hi-fi component. The acoustically dead constrained-layer damped plate combined with a Seismic Load Cell™ attached to each corner is the ultimate combination to absorb and isolate unwanted vibration, including structural, air-borne and that generated by the hi-fi equipment. 

The Platform can be levelled by turning the adjustable Seismic Load Cell™.
For asymmetric components such as a valve (tube) amplifier with the transformers at the rear, different load capability Seismic Load Cells™ can be used to balance the load. Platform working height is approximately 40mm (1.5”) 
The Seismic Isolation Platform is available in three standard sizes:

• Size 1 43x30cm (17×12”) | • Size 2 48x35cm (19×14”) | • Size 3 52x40cm (20.5×16”) 

It is important to specify the weight of your equipment when ordering. Bespoke platforms are available for any size or weight of audio equipment.
The singular Seismic Load Cell is available with seven different weight capacities, ranging progressively from 1kg up to 32kg. Virtually any weight of equipment can be isolated. The spring rates are as follows: 

The maximum load when using four E springs is 256kg (560lb). For loads above this, eight or more load cells may be required. 
For out of balance loads where the centre of gravity of the component is not near the geometrical centre of the component, each support foot is screw adjustable in length to allow for this. If the degree of out of balance is too large, then it is suggested to use unequal springs. 

For example, a valve amplifier with the transformers at the rear, then use two “B” springs at the front and two “C” springs at the rear.


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