vibrations Reduction with Silicone Dampers

This section presents comparative measurements that highlight the impact of the innovative silicone damper system in reducing electrical disturbances caused by mechanical vibrations. Additionally, the following setup was crucial in determining the optimal combination of mechanical properties for the dampers—such as dimensions and hardness.

THE Measurement Setup

To accurately capture the effect of mechanical vibrations on the amplifier, the following test setup was used:

  • Stimulus Generation: The Single 25's speaker was disconnected from the amplifier and connected to an external laboratory amplifier. Using a lab test bench (Audio Precision Apx515), a stimulus signal was generated to excite the speaker, introducing mechanical vibrations into the system to simulate real-world conditions.

  • Signal Measurement: Simultaneously, the audio output from the Single 25 amplifier was measured. This setup allowed for precise detection of parasitic signals generated by mechanical vibrations, such as tube rattle and microphony from capacitors and other sensitive components.

This approach ensures that the measurements accurately capture the true impact of vibration-induced electrical noise.

THE Results

The following graph illustrates the differences in performance, with and without the dampers:

As shown, the configuration with dampers significantly reduces electro-mechanical disturbances across the frequency spectrum. This reduction leads to a clearer, more accurate tone and overall improved sound quality.

To provide more context, since the scale is logarithmic (dB), the reduction is substantial. For example, at 100Hz, the silicone dampers reduce electrical disturbances by approximately 33dB, meaning the disturbance is reduced by a factor of 50!

This data highlights the effectiveness of our vibration isolation design in enhancing audio performance. It’s just one example of how we continuously refine our products to deliver a superior playing experience.

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