Compact and powerful, Sopra N°1 is a concentration of technological innovation. It features “NIC” magnetic circuit, “TMD” surrounds for the midrange woofer and Infinite Horn Loading (IHL) of the tweeter. It is a true “demonstrator”, corroborating the contribution of the new technologies implemented on Sopra.Beyond this attractive first impression, what’s astonishing is the texture and smoothness of its sound. It provides a solid, “fleshy” sound with full and articulated bass. Precious is by no means artificial, nor is the limited to the treble. The overall coherence and harmonic richness gives the listener a surprising understanding of the music.

  
The midrange register is no doubt the most complicated to control in a sound system.Thanks to the power of finite element analysis, our teams have revealed resonances which alter definition in the suspension which connects the cone to the basket

The solutions already known for increasing the damping properties of the suspension all result in an increase of the mass which consequently alters definition. The answer came from a technology used in earthquake-resistant skyscrapers and which is also used for the suspension on racing cars. This technology is called a “Tuned Mass Damper”: an additional mass oscillates in opposition to the resonance frequency to control it.

Our Tuned Mass Damper consists in simply two tubular rings on the suspension to avoid deformation of the cone without afflicting the dynamics. It reduces drastically the distortion and increase the definition.IHL
INFINITE HORN LOADING
Getting the most out of the Beryllium tweeter

Our Beryllium tweeter features an incredibly light and extremely rigid dome, that deliver a transparent and dynamic sound. Its main limitation comes from the compression of air in the cavity behind it, that create interference with the incredible definition. To overcome this, the ideal would be to have a nearly infinite volume. But the requirement for Sopra to be compact meant that as much of the cabinet as possible had to be used for the bass. We had to explore other options for loading the tweeter, which led us to come up with the IHL system.The rear of the Beryllium tweeter is loaded via a small cavity which is connected to the exterior of the enclosure by a horn. whom inside is filled with a damping material. Sound waves from the rear of the tweeter are delicately and gradually absorbed. Its acoustic impedance approaches zero so that no resistance alters the movement of the dome. This reduces distortion by 30% and pushes definition to its maximum.

Pricings will be around 8000€ for the No1 and 12000€ for the No2.