Floorstanding speaker Wilson Benesch A.C.T. 3ZERO Standard Finish: Textured Black

A.C.T. 3Zero – a biocomposite monocoque and isobaric drive system in the new generation of Wilson Benesch reference loudspeakers

The A.C.T. 3Zero three-way floorstanding loudspeaker continues a line of models that began in 1991 with the first A.C.T. One loudspeaker and continued through the A.C.T. Two, A.C.T., A.C.T. C60 right through to the A.C.T. One Evolution. The acronym A.C.T. – Advanced Composite Technology – refers to the composite construction techniques upon which the Wilson Benesch brand was founded. The new model retains the series’ classic physical proportions, but brings a significant shift in both the materials used and the driver architecture, including the first-ever implementation of the Isobaric Drive System in the history of the A.C.T. range.

The structural backbone of the design is a single-piece biocomposite monocoque, which is the largest individual component of every speaker in the Fibonacci series. Almost all petrochemical-based materials used to date have been replaced by renewable raw materials from natural sources. The change is not merely ecological: the new monocoque outperforms its predecessor in both damping and cabinet rigidity, thereby reducing panel resonance and minimising the cabinet’s influence on the final sound.

The driver configuration comprises an isobaric low-frequency section integrated into a precision-machined three-piece base, followed by the Tactic 3.0 low-frequency driver, the new Fibonacci tweeter and a special Tactic 3.0 mid-bass driver connected directly to the amplifier. The omission of filter stages in this section shortens the signal path to a minimum and eliminates the phase anomalies and deviations associated with complex crossovers.

The combination of a damped composite enclosure and a minimalist approach to the crossover results in a natural acoustic character: layered clarity of detail without exaggeration, a tonally balanced presentation, and a deep yet seamlessly integrated soundstage across the entire frequency range – from the lowest octaves to the upper limits of the spectrum.

Key features

• Biocomposite monocoque: Renewable materials instead of petrochemical components
• Isobaric Drive System: First used in the A.C.T. model range
• Tactic 3.0 drivers: In-house designed low-frequency and mid-bass units
• Fibonacci tweeter: A new generation of high-frequency driver
• Minimalist crossover: Direct connection of the mid-bass driver to the amplifier