Amphion has announced that following its industry debut in April at the 2023 NAMM Show in Anaheim, CA, the new One25A active studio monitor — the company’s first three-way design — is now shipping.
“The development process of the One25A started in 2019. During this path we left no stones unturned. This sort of crazy dedication, it makes no sense, but we feel that because it’s a statement product we needed to get it 100 percent right,” says Anssi Hyvönen, CEO of Amphion.
The One25A has a sealed dual cabinet designed both as a stiffening support structure and as a physical-energy dispersion filter. It utilizes the mass of the sub-driver, and how it connects to the bracing structure, to control the resonance of the whole enclosure to provide added resolution and clarity.
The new tweeter and midrange driver of the One25A are in an isolated sealed chamber to help minimize the bass woofer’s negative effects such as pressure changes. Additionally, the baffle around the midrange chamber is acoustically symmetrical for a smoother frequency curve and more precise imaging.
The design also incorporates Amphion’s proprietary fifth generation waveguide and U/D/D (Uniformly Directive Diffusion) to help ensure driver integration, eliminate cabinet diffractions and produce a uniform, even response through a broad frequency band.
The One25A has what the company describes as a “line-level passive crossover,” which is buffered with clean FET buffers. This gives the One25A the best of both worlds. It also utilizes Amphion’s overload protection circuitry that’s kept separate from the audio signal path and it remains inactive until limiting is needed to foster maximum resolution and safe user operation.
Instead of placing the amplifiers and power supply inside the monitor, where they can be negatively affected by physical vibration and magnetic forces of drivers, the electronic components are located on the exterior of the loudspeaker and are isolated from the enclosure to improve performance and foster a longer life, easier serviceability and soffit mounting if desired.
For room tuning and soffit mounting applications, Amphion has designed a proprietary eight-step low-frequency adjustment boundary control (+/- 7dB) allowing fine tuning the bass response when placing the One25A near boundaries. The adjustment is a smooth shelf-type curve mostly operating at frequencies below 150 Hz.
“Our job is to create a large clean window into sound that allows people to experience sound in a manner they have not been able to do before,” Hyvönen concludes. “All of this leads to a certain acoustic purity and immaterial feel that all Amphion products share.”
Amphion One25A monitors are available for purchase globally for $14,900 USD per pair. Go here for more specifics.