Seismion Launches Next-Gen Active Isolation Tech

Seismion specialises in advanced mechatronic systems and vibration technology, and its latest innovation, Reactio 2, is now arriving at retailers, including in the UK for the first time.

The German specialist Seismion focuses on active vibration isolation, leading to products that meet the rigorous demands of both industrial applications, such as semiconductor production and metrology, as well as high-end audio. Each isolator is hand-finished in Hannover, Germany, using "premium components."

We are told that the company utilises its in-depth knowledge 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 offer "unrivalled performance" in mitigating the unwanted vibrations that are so detrimental to music playback.

Initially developed for demanding industrial applications requiring precise vibration control, Seismion states that 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 500 x 400 mm Reactio 2 can be used for individual components, such as turntables and valve amplifiers, as well as loudspeakers and entire systems, with a maximum payload of 65 kg. For heavier components and systems, the Seismion Reactio 2 XL (600 x 500 mm) is rated up to 150 kg.

Reactio 2's core feature is said to be 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. 

Equipped with multiple deflection sensors and motors, the Reactio 2 includes 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 provides locking capability, enabling the top plate to be securely locked against the housing and eliminating passive isolation, thereby facilitating the 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, says the brand. For enhanced passive resonance damping, particularly at higher frequencies, the top and bottom plates are now constructed from premium MDF.

Seismion products are now available in the UK, thanks to an exclusive distribution agreement with Hi-Fi Doctor, a new distributor with a 50-year background in the AV industry. 

Speaking about Seismion's availability in the UK, a Hi-Fi Doctor spokesperson told StereoNET:

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.

The Seismion Reactio 2 is available now, priced at £10,250/ US$16,000, alongside the Reactio 2 XL, costing £12,750/ US$19,000. Both are available in customised colours and finishes upon request. We are awaiting confirmed pricing for other markets.

Visit Seismion for more information