Seismion Launches its next-generation Active Vibration Isolation Technology in the UK
Seismion launches its next-generation active vibration isolation technology in the UK…
24 June 2025, Surrey, England: Seismion, a German manufacturer specialising in advanced mechatronic systems and vibration technology, is now available in the UK, thanks to an exclusive distribution agreement with hifidoctor.co.uk, a new distributor with a 50-year background in the AV industry and dealers in London and southern England.
Seismion is recognised for its expertise in designing, developing, and constructing solutions for precise vibration control. The company's focus on active vibration isolation has led to products that meet the rigorous demands of both industrial applications, such as semiconductor production and metrology, and also, high-end audio.
The company uses its in-depth knowledge and sophisticated metrological equipment to address the complex vibration challenges presented by powerful audio systems which often comprise vulnerable signal-carrying equipment such as turntables, which are particularly susceptible, as vibrations can be indistinguishable from the music information itself. Many other components, including valves, are also microphonic, meaning vibrations can directly influence the output signal of valve amplifiers.
Seismion’s Reactio 2 is a high-performance active vibration isolation system designed to meet the exacting standards of audio enthusiasts, offering unrivalled performance in mitigating the unwanted vibrations that are so detrimental to music playback.
Initially developed for demanding industrial applications requiring precise vibration control, the Reactio 2’s active system incorporates highly sensitive piezoelectric sensors that detect even the most minute vibrations. An all-analogue electronic control circuit then generates precise counter forces, minimising distortions and noise.
The Reactio 2 can be used for individual components, such as turntables and valve amplifiers, but also loudspeakers and even entire systems up to a 65 kg payload maximum. For heavier components and systems, the Seismion Reactio 2 XL is rated up to 150 kg.
Seismion Reactio 2 core technologies
A core feature of the Reactio 2 is its exceptional isolation capability, effective even in the sub-Hertz range. This allows for efficient isolation of common building vibrations, with a reduction exceeding -20 dB around 5 Hz, where disturbances are typically most pronounced.
Among the key enhancements and specifications of the Reactio 2, is a more than -10 dB reduction at 1 Hz, a performance metric achieved by a select few active vibration isolators.
Equipped with multiple deflection sensors and motors, the Reactio 2 incorporates automatic levelling functionality, ensuring the top-plate remains perfectly aligned with a repeatability of 25 µm, thereby optimising sensor and actuator operation.
A push-button mechanism enables a locking functionality, allowing the top-plate to be securely locked against the housing, eliminating passive isolation and facilitating stable setup of sensitive equipment such as turntables.
The vibration sensors utilise differential measurement technology, significantly reducing susceptibility to interference compared to standard single-ended designs. Furthermore, through sophisticated computer modelling and a meticulous selection of operational amplifiers, the noise floor has been reduced by half compared to the previous Reactio plus, contributing to a cleaner audio background.
The unit features a refined design for high-end aficionados, with high-quality push-buttons, DC-connectors, and housing. Each isolator is hand-finished in Hannover, Germany, using premium components. For enhanced passive resonance damping, particularly at higher frequencies, the top and bottom plates are now constructed from premium MDF.
Speaking about Seismion’s availability in the UK, a Hi-Fi Doctor spokesperson said: ’The availability of the Reactio 2 in the UK marks a new opportunity for British audiophiles to experience a professional-grade solution for vibration isolation, designed to enhance the purity of audio in high-performance systems. As a new audio distributor to the UK with 50 years’ collective experience, we’re delighted to be the exclusive agent for this prestigious leader in the field of vibration technology. Customers can discover Seismion now via retailers Studio AV and Lotus Hi-Fi, with new dealers planned for the near future.’
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Reactio 2 specifications
Dimensions: 500 x 400 mm
Weight: 14.5 kg
Payload range: 0–65 kg
Automatic levelling: 25 µm repeatability
DC plug with a 2.1 mm inner diameter pin
Reactio 2 XL as above except:
Dimensions: 600 x 500 mm
Payload range: 0–150 kg
Price and availability
Reactio 2 £10,250; Reactio 2 XL £12,750
Both are available now, customised colours and finishes available upon request
Web - https://seismion.com/
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