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Townshend Seismic Platform


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Townshend Seismic Platform
Seismic Vibration Isolation Platform

Ultra thin platform disappears under equipment
Enhances clarity across the frequency range
Delivers wider and deeper soundstages
Improves bass definition
Reduced muddiness and smear
Makes transients clearer

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

Spring/Min weight/ Max weight/ Colour Code
AAA/ 0.5kg (1lb)/ 1kg (2lb)/ Brown
AA/ 1kg (2lb)/ 2kg (4lb)/ Red
A/ 2kg (4lb)/ 4kg (9lb)/ Orange
B/ 4kg (9lb)/ 8kg (17lB)/ Yellow
C/ 8kg (17lb)/ 16kg (35lb)/ Green
D/ 16kg (35lb)/ 32kg (70lb)/ Blue
E/ 32kg (70lb)/ 64kg (140lb)/ Silver

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